A capacitor is storing energy of 3 Joules with a voltage of 50 volts across its terminals. A second identical capacitor of the same value is storing energy of 1 Joule. What is the voltage across the terminals of the second capacitor?

Answer:

EMF = 1.20 V

Explanation:

It is given that,

Magnetic field used by the screwdriver, B = 13.5 T

Length of screwdriver, l = 10.5 cm = 0.105  m

Speed with which it is moving. v = 0.85 m/s

We need to find the maximum EMF induced in the screwdriver. It is given by :

[tex]\epsilon=BLv[/tex]

[tex]\epsilon=13.5\ T \times 0.105\ m \times 0.85\ m/s[/tex]

[tex]\epsilon=1.20\ V[/tex]

So, the maximum emf of the screwdriver is 1.20 V. Hence, this is the required solution.

Answer:

The specific heat of the substance is c= 512.04 J/kg K

Explanation:

ΔQ= 2205 J

m= 0.03434 kg

ΔT= 125.4 ºC

ΔQ= m * c * ΔT

c= ΔQ / (m * ΔT)

c= 512.04 J/Kg K

Answer:

The speed of the ambulance is 4.66 m/s.

Explanation:

Given that,

The siren emitting a whine at 1570 Hz

The cyclist pedaling a bike at 2.45 m/s

The cyclist hears a frequency of 1560 Hz

We know that,

Speed of sound wave

[tex]v = 343\ m/s[/tex]

We calculate the speed of the ambulance

Using Doppler effect,

[tex]f'=f\times\dfrac{v+v_{o}}{v+v_{s}}[/tex]

Where,

[tex]f' [/tex]= frequency of ambulance siren

[tex]f [/tex]= cyclist hears the frequency

[tex]v_{s}[/tex]=speed of source

[tex]v_{v}[/tex]= speed of observer

Put the value in to the formula

[tex]v_{s}=f\times\dfrac{v+v_{o}}{f'}-v[/tex]

[tex]v_{s}=1570\times\dfrac{343-2.45}{1560}-343[/tex]

[tex]v_{s}=4.66\ m/s[/tex]

Hence, The speed of the ambulance is 4.66 m/s.

Answer:

Explanation:

KE_s: Kinetic Energy Son

KE_f: Kinetic Energy Father.

Relationship

KE_f: =  (1/4) KE_s

m_s: = (1/3) m_f

v_f: = velocity of father

v_s: = velocity of the son

Relationship

1/2 mf (v_f + 1.2)^2 = 1/2 m_s (v_s)^2      Multiply both sides by 2.

mf (v_f + 1.2)^2 = m_s * (v_s)^2               Substitute for the mass of the m_s

mf (v_f + 1.2)^2 = (m_f/3) * (v_s)^2         Divide both sides by father's mass

(v_f + 1.2)^2 = 1/3 * (v_s)^2                      multiply both sides by 3

3*(v_f + 1.2)^2 = (v_s) ^2                         Take the square root both sides

√3 * (v_f + 1.2) = v_s

Note

KE_f = (1/4) KE_s                                                  Multiply by 4

4* KE_f = KE_s                                                     Substitute (again)

4*(1/2) m_f (v_f + 1.2)^2 = 1/2* (1/3)m_f *v_s^2   Divide by m_f

2* (v_f + 1.2)^2 = 1/6 * (v_s)^2                              multiply by 6

12*(vf + 1.2)^2 = (v_s)^2                                        Take the square root

2*√(3* (v_f + 1.2)^2) = √(v_s^2)

2*√3 * (vf + 1.2) = v_s

Use the second relationship to substitute for v_s so you can solve for v_f

2*√3 * ( v_f + 1.2) = √3 * (v_f + 1.2)                     Divide by sqrt(3)

2(v_f + 1.2) = vf + 1.2

Edit

2vf + 2.4 = vf + 1.2

2vf - vf + 2.4 = 1.2

vf = 1.2 - 2.4

vf = - 1.2

This answer is not possible, but 2 of us are getting the same answer. The other person is someone whose math I would never question. She rarely makes an error. And I do mean rarely. Could you check to see that you have copied this correctly?

Answer:

0.032 m

Explanation:

Consider the forces acting on the block

m = mass of the block = 1.50 kg

[tex]f_{s}[/tex] = Static frictional force

[tex]F_{n}[/tex] = Normal force on the block from the wall

[tex]F_{s}[/tex] = Spring force due to compression of spring

[tex]F_{g}[/tex] = Force of gravity on the block = mg = 1.50 x 9.8 = 14.7 N

k = spring constant = 860 N/m

μ = Coefficient of static friction between the block and wall = 0.54

x = compression of the spring

Spring force is given as

[tex]F_{s}[/tex] = kx

From the force diagram of the block, Using equilibrium of force along the horizontal direction, we get the force equation as  

[tex]F_{n}[/tex] = [tex]F_{s}[/tex]

[tex]F_{n}[/tex] = kx                                             eq-1

Static frictional force is given as

[tex]f_{s}[/tex] = μ [tex]F_{n}[/tex]

Using eq-1

[tex]f_{s}[/tex] = μ k x                                                eq-2

From the force diagram of the block, Using equilibrium of force along the vertical direction, we get the force equation as

[tex]f_{s}[/tex] = [tex]F_{g}[/tex]

Using eq-2

μ k x = 14.7

(0.54) (860) x = 14.7

x = 0.032 m

Answer:

The ball doesn't strike the building because it strikes the ground at d=1.62 meters.

Explanation:

V= 5 m/s < 70º

Vx= 1.71 m/s

Vy= 4.69 m/s

h= Vy * t - g * t²/2

clearing t for the flying time of the ball:

t= 0.95 s

d= Vx * t

d= 1.62 m

Answer:

0.0667 m

Explanation:

λ = wavelength of light = 400 nm = 400 x 10⁻⁹ m

D = screen distance = 2.5 m

d = slit width = 15 x 10⁻⁶ m

n = order = 1

θ = angle = ?

Using the equation

d Sinθ = n λ

(15 x 10⁻⁶) Sinθ = (1) (400 x 10⁻⁹)

Sinθ = 26.67 x 10⁻³

y = position of first minimum

Using the equation for small angles

tanθ = Sinθ = y/D

26.67 x 10⁻³ = y/2.5

y = 0.0667 m

The first minimum in a single-slit diffraction pattern of light with a wavelength of 400 nm incident on a single slit of width 15 microns, 2.5 m from the screen, is approximately 66.67 mm from the central maximum.

The question asks for the distance of the first minimum from the central maximum in a single-slit diffraction pattern.

The distance to the first minimum from the central maximum in a single-slit diffraction pattern is calculated using the formula: [tex]y = \frac{\lambda X D}{d}[/tex]

where y - is the distance from the central maximum to the first minimum on the screen (meters), λ (lambda) - is the wavelength of light (meters), D - is the distance between the slit and the screen (meters), and d - the width of the slit (meters)

Given λ (lambda) = 400 nm = [tex]400 X 10^{-9} m[/tex], D = 2.5 m, d = 15 microns = [tex]15 X 10^{-6} m[/tex]

Calculation:

[tex]y = \frac{(400 X 10^{-9} m) X (2.5 m)}{(15 X 10^{-6} m)}\\y = 0.0667 \ meters (or 66.7 \ millimeters)[/tex]

The first minimum is 66.7 millimeters from the central maximum.

Answer:

3260.33 J

Explanation:

[tex]n [/tex]  = number of rods = 5

[tex]L [/tex]  = length of each rod = 0.715 m

[tex]m [/tex]  = mass of rod = 2.51 kg

[tex]I [/tex]  = total moment of inertia

Total moment of inertia is given as

[tex]I = \frac{nmL^{2}}{3}[/tex]

[tex]I = \frac{(5)(2.51)(0.715)^{2}}{3}[/tex]

[tex]I [/tex] = 2.14 kgm²

[tex]w [/tex]  = angular speed = 527 rpm = 55.2 rad/s

Rotational kinetic energy is given as

E = (0.5) [tex]I [/tex]  ([tex]w [/tex] )²

E = (0.5) (2.14) (55.2)²

E = 3260.33 J

Answer:

a= 2 m/s^2

Explanation:

take to the right as positive

let Ftot be the total forces acting on the box , m be the mass of the box and a be the acceleration of the box.

Ftot = 10 - 2 = 8 N

and,

Ftot = ma

   a = Ftot/m

      = 8/4

      = 2 m/s^2

therefore, the acceleration of the box is of magnitude of 2 m/s^2.

Answer:

A) Apparent Weight = 590 N

Explanation:

As we know that frequency is given as

[tex]f = \frac{1}{30}[/tex]

[tex]f = 0.033 Hz[/tex]

now the angular speed is given as

[tex]\omega = 2\pi f[/tex]

[tex]\omega = 2\pi(0.033) = 0.21 rad/s[/tex]

now at the top position we will have

[tex]mg - N = m\omega^2 R[/tex]

[tex]N = mg - m\omega^2 R[/tex]

[tex]N = 600 - \frac{600}{9.8}(0.21)^2(4.0)[/tex]

[tex]N = 590 N[/tex]

The woman's apparent weight at the top of the Ferris wheel is less than her actual weight due to the centripetal force experienced during the uniform circular motion. This apparent weight can be calculated by subtracting the centripetal force from the gravitational force, yielding an answer of 590 N.

This problem revolves around the concepts of centripetal force and apparent weight in the context of uniform circular motion. The woman's apparent weight at the top of the Ferris wheel is less than her actual weight because of the centripetal force directed towards the center of the Ferris wheel.

To calculate the apparent weight, we should subtract the centripetal force from the gravitational force. The gravitational force is her actual weight, and since weight = mass * gravity, her mass equals 600N/9.8 m/s2 ~= 61.2 kg. The angular velocity of the Ferris wheel (ω) is 2π rad/30s since it makes one revolution every 30s. Using the formula centripetal force = m*ω2*r, we find that the centripetal force equals 61.2 kg * (2π rad/30s)2 * 4m = 10 N approximately.

Finally, the woman's apparent weight at the top is the gravitational force minus the centripetal force, or 600 N - 10 N, which equals 590 N. Therefore, the correct answer is A) 590 N.

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Answer:

The speed of meteoroid is 21.61 km/s in south-east.

Explanation:

Given that,

A meteoroid is traveling through the atmosphere at 18.3 km/s. while descending at a rate of 11.5 km/s it means 11.5 km/s in south.

We need to draw a diagram

Using Pythagorean theorem

[tex]AC^2=AB^2+BC^2[/tex]

[tex]AC^2=(18.3)^3+(11.5)^2[/tex]

[tex]AC=\sqrt{(18.3)^2+(11.5)^2}[/tex]

[tex]AC=21.61\ km/s[/tex]

Hence, The speed of meteoroid is 21.61 km/s in south-east.

The speed of the meteoroid is calculated using the Pythagorean theorem and is approximately 21.62 km/s.

To calculate the speed (magnitude of the velocity), the equation is: speed = √(horizontal velocity)² + (vertical velocity)².

Thus, the speed = √(18.3 km/s)² + (11.5 km/s)² = √(335.29 + 132.25) km²/s² = √467.54 km²/s² = 21.62 km/s.

The meteoroid's speed through the atmosphere is approximately 21.62 km/s.

Answer:

Energy, [tex]E=9\times 10^{13}\ J[/tex]

Explanation:

It is given that,

Mass of matter, m = 1 g = 0.001 Kg

If this matter is completely converted into energy, we need to find the yield. The mass of an object can be converted to energy as :

[tex]E=mc^2[/tex]

c = speed of light

[tex]E=0.001\ kg\times (3\times 10^8\ m/s)^2[/tex]

[tex]E=9\times 10^{13}\ J[/tex]

So, the energy yield will be [tex]9\times 10^{13}\ J[/tex]. Hence, this is the required solution.

Explanation:

It is given that,

Mass of first ball, m₁ = 2 kg

Mass of other ball, m₂ = 3.5 kg

Velocities of both balls, u = 0.9 m/s

(1) The lighter ball rebounds opposite its initial direction, with speed 0.90 m/s. We need to find the final velocity of second ball. Applying the conservation of momentum as :

[tex]2\ kg\times 0.9-3.5\ kg\times 0.9\ m/s=-2\ kg\times 0.9\ m/s+3.5v[/tex]

v is the final velocity of heavier ball.

v = 0.128 m/s

or

v = 0.13 m/s

Initial kinetic energy, [tex]E_i=\dfrac{1}{2}\times (2\ kg+3.5\ kg)\times (0.9\ m/s)^2=2.23\ J[/tex]

Final kinetic energy, [tex]E_f=\dfrac{1}{2}\times 2\ kg\times (0.9\ m/s)^2+\dfrac{1}{2}\times 3.5\ kg\times (0.13\ m/s)^2=0.84\ J[/tex]

Lost in kinetic energy, [tex]\Delta KE=0.84-2.23=-1.39\ J[/tex]

Hence, this is the required solution.

Answer:

-423 m³/s

Explanation:

Volume of a cone is:

V = ⅓ π r² h

Given r = 2h:

V = ⅓ π (2h)² h

V = ⁴/₃ π h³

Taking derivative with respect to time:

dV/dt = 4π h² dh/dt

Given h = 1010 cm and dh/dt = 33 cm/s:

dV/dt = 4π (1010 cm)² (33 cm/s)

dV/dt ≈ 4.23×10⁸ cm³/s

dV/dt ≈ 423 m³/s

The pile is growing at 423 m³/s, so the bin is draining at -423 m³/s.

The rate at which the sand is leaving the bin at that instant is [tex]423\times 10^{6} cm^{3}/s[/tex].

It is given that the radius of a conical bin is two times its height and at the instant when the height of the bin is [tex]1010cm[/tex], the height of the pile increases at a rate of [tex]33 cm/s[/tex].

The formula for the volume of a cone is given as,

[tex]V=\frac{1}{3}\pi r^{2}h[/tex]

Substitute [tex]r=2h[/tex] as per the question

[tex]V=\frac{4}{3}\pi h^{3}[/tex]

This is the volume of the conical bin.

To find the rate of change in the volume of the bin, differentiate the expression for volume w.r.t. time using the chain rule as follows,

[tex]\frac{dV}{dt}=\frac{dV}{dh}\times \frac{dh}{dt}[/tex]

[tex]\frac{dV}{dt}=\frac{4}{3}\pi (3h^{2}) \times \frac{dh}{dt}\\\\\frac{dV}{dt}=4\pi h^{2} \times \frac{dh}{dt}\\[/tex]

Now, according to the question, at [tex]h=1010cm[/tex], [tex]\frac{dh}{dt}=33[/tex].

Substituting these values, the rate at which the sand is leaving the bin is,

[tex]\frac{dV}{dt}=4\pi (1010)^{2} \times 33\\\frac{dV}{dt}=423,025,503.90235\\\frac{dV}{dt}=423\times10^{6}cm^{3}/s[/tex]

So, the rate at which the sand leaves the conical bin at the given instant is [tex]423\times10^{6}cm^{3}/s[/tex]

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Answer:

B= [tex]\sqrt{65}[/tex] ≅8.06

Explanation:

Using the Pythagorean theorem:

[tex]C^{2}[/tex]= [tex]A^{2}[/tex] + [tex]B^{2}[/tex]

where C represents the length of the hypotenuse and A and B the lengths of the triangle's other two sides, we can find out the lenght of B assuming the value of the hypotenuse being 9 and A being 4.

[tex]9^{2}[/tex]=[tex]4^{2}[/tex] + [tex]B^{2}[/tex]

81= 16+ [tex]B^{2}[/tex]

81-16= [tex]B^{2}[/tex]

B= [tex]\sqrt{65}[/tex] ≅8.06

The length of B is equal to 8.06 units

Data given;

To solve this question, we have to use the formula of finding resultant vectors

Since it's a right-angle triangle, let's use Pythagoras' theorem

[tex]C^2=A^2 + B^2\\9^2 = 4^2 + B^2\\b^2 = 9^2 - 4^2\\b^2 = 65\\b = \sqrt{65}\\b = 8.06[/tex]

From the calculation above, the length of B is equal to 8.06.

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You haven't told us anything about the detectors being used.  We don't know how the sensitivity of the detector is related to the total number of photons absorbed, and we don't even know whether you and your friend are both using the same type of detector.

All we can do, in desperation, is ASSUME that the minimum time required to just detect a star is inversely proportional to the total number of its photons that strike the detector.  That is, assume . . .

(double the number of photons) ===> (detect the source in half the time) .

-- The intensity of light delivered to the prime focus of a telescope is directly proportional to the AREA of its objective lens or mirror, which in turn is proportional to the square of its radius or diameter.

So your telescope gathers (0.18/0.05)² = 12.96 times as much light as your friends telescope does.

-- So we'd expect your instrument to detect the same star in

(119.5 min) / (12.96) = 9.22 minutes  .

We're simply comparing the performance of two different telescopes as they observe the same object, so the star's magnitude doesn't matter.

If your telescope has diameter 0.18 metres, for 9.22 minutes, you need to expose for.

An optical telescope is one that collects and sharply concentrates light. Mostly from the visible parts of the spectrum. That is to make a magnified image for close inspection, to take a picture, or you might say to get information from an electronic sensor image.

A reflecting telescope, sometimes called a reflector, is one that creates images by reflecting light off either a single curved mirror or a group of mirrors. Sir Isaac Newton created the reflecting telescope inside the 17th century as a replacement for the refracting one.

your telescope gathers (0.18/0.05)² = 12.96 times as much light as your friends telescope does.

(119.5 min) / (12.96) = 9.22 minutes

Therefore, for 9.22 minutes, you need to expose for.

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Explanation:

It is given that,

Speed of the baseball, u = 44 m/s

Speed of the baseball, v = 53 m/s

Mass of the ball, m = 145 g = 0.145 kg

Time of contact between the ball and the bat, t = 2.2 ms = 0.0022 s

[tex]F=ma[/tex]

[tex]F=\dfrac{mv}{t}[/tex]

[tex]F_1=\dfrac{0.145\ kg\times 44\ m/s}{0.0022\ s}[/tex]

F₁ = 2900 N...........(1)

[tex]F=ma[/tex]

[tex]F=\dfrac{mv}{t}[/tex]

[tex]F_2=\dfrac{0.145\ kg\times 53\ m/s}{0.0022\ s}[/tex]

F₂ = 3493.18 N.........(2)

In average vector form force is given by :

[tex]F=F_1+F_2[/tex]

[tex]F=(2900i+(-3493.18)\ N[/tex]

[tex]F=(2900i-3493.18j)\ N[/tex]

Hence, this is the required solution.

Answer:

option (b)

Explanation:

Let the electric field is given by E.

mass of proton = mp

mass of electron = me

acceleration of proton = ap

acceleration of electron = ae

Charge on both the particle is same but opposite in nature.

The force on proton = q E

The force on electron = - q E

acceleration of proton, ap = q E / mp

acceleration of electron, ae = - q E / me

We observe that the force is same in magnitude but opposite in direction, acceleration is also different and opposite in direction.

Final answer:

The electron and proton experience the same magnitude of force but different accelerations due to their mass difference, and move in opposite directions because of their opposite charges.

Explanation:

When a proton and an electron are placed in a uniform electric field and released, they both experience the same magnitude of force, because they have equal and opposite charges of the same magnitude. However, their accelerations differ due to their masses. The electron has a much smaller mass compared to the proton, and according to Newton's second law (F = ma), a given force will produce a larger acceleration on an object with a smaller mass.

Therefore, while the magnitudes of the forces are the same, the electron will experience a greater magnitude of acceleration than the proton. Finally, they move in opposite directions because the electric field exerts a force in the direction of the field on positive charges and in the opposite direction on negative charges. Therefore, the electron moves in the opposite direction to the proton when released in the same electric field.

Answer:

The terminal speed of his is 137.68 m/s.

Explanation:

Given that,

Mass of skydiver = 78 kg

Area of box[tex]A =24\times35=840\ cm[/tex]

Drag coefficient = 0.80

Density of air [tex]\rho= 1.2\times kg/m^3[/tex]

We need to calculate the terminal velocity

Using formula of drag force

[tex]F_{d} = \dfrac{1}{2}\rho v^2Ac[/tex]

Where,

[tex]\rho[/tex] = density of air

A = area

C= coefficient of drag

Put the value into the formula

[tex]78\times9.8=\dfrac{1}{2}\times1.2\times v^2\times24\times10^{-2}\times35\times10^{-2}\times0.80[/tex]

[tex]v^2=\dfrac{2\times78\times9.8}{1.2\times24\times10^{-2}\times35\times10^{-2}\times0.80}[/tex]

[tex]v=\sqrt{\dfrac{2\times78\times9.8}{1.2\times24\times10^{-2}\times35\times10^{-2}\times0.80}}[/tex]

[tex]v=137.68\ m/s[/tex]

Hence, The terminal speed of his is 137.68 m/s.

The terminal speed of the skydiver with dimensions as a rectangular box as he falls feet first is 137.68 m/s.

Terminal speed of a body is the maximum speed, which is achieved by the object when it fall through a fluid.

In the case of terminal velocity, the force of gravity becomes equal to the sum of the drag force and buoyancy force due to fluid on body.

Terminal velocity can be find out as,

[tex]v=\sqrt{\dfrac{2mg}{\rho AC_d}}[/tex]

Here, (m) is the mass, (g) is gravitational force, ([tex]\rho[/tex]) is the density of fluid, (A) is the project area and ([tex]C_d[/tex]) is the drag coefficients.

It is given that, the mass of the skydiver is 78 kg The dimensions of the skydiver is s 24 cm × 35 cm × 170 cm.

The coefficient of drag is 0.80 and the density of air is 1.2 kg/m³.

Put the values in the above formula as,

[tex]v=\sqrt{\dfrac{2\times78\times9.8}{1.2\times0.24\times0.35\times 0.8}}\\v=137.68\rm m/s[/tex]

Thus the terminal speed of the skydiver as he falls feet first is 137.68 m/s.

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a. The resistance of the bulb is equal to 4.58 Ohms.

b. The fraction of the chemical energy transformed which appears as internal energy in the batteries is 8.4%.

Given the following data:

a. To find the resistance of the bulb:

First of all, we would determine the total electromotive force (E) of the electric circuit:

[tex]E = 2 \times 1.50[/tex]

E = 3.0 Volts

Total internal resistance = [tex]0.240 + 0.180 = 0.42 \;Ohms[/tex]

Mathematically, electromotive force (E) is given by the formula:

[tex]E = V + Ir[/tex]    ....equation 1.

Where:

According to Ohm's law, voltage is given by:

[tex]V = IR[/tex]    ....equation 2

Substituting eqn 2 into eqn 1, we have:

[tex]E = IR + Ir\\\\E = I(R + r)\\\\R + r = \frac{E}{I} \\\\R = \frac{E}{I} - r\\\\R = \frac{3}{0.6} - 0.42\\\\R = 5 - 0.42[/tex]

Resistance, R = 4.58 Ohms

b. To determine what fraction of the chemical energy transformed appears as internal energy in the batteries:

First of all, we would determine the electromotive force (E) in the batteries.

[tex]E_B = IR\\\\E_B = 0.6 \times 0.42[/tex]

[tex]E_B[/tex] = 0.252 Volt

[tex]Percent = \frac{E_B}{E} \times 100\\\\Percent = \frac{0.252}{3} \times 100\\\\Percent = \frac{25.2}{3}[/tex]

Percent = 8.4 %

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The resistance of the bulb and the fraction of the chemical energy transformed into internal energy in the batteries can be determined using Ohm's law and the power dissipation formula. The total resistance in the series circuit is the sum of the individual resistances, and the total voltage is the sum of the individual voltages.

The total voltage supplied by the batteries is the sum of their voltages, so Vtot = 1.5V + 1.5V = 3.0V. The total internal resistance of the batteries is the sum of their internal resistances, Rt = 0.240Ω + 0.180Ω = 0.420Ω. For the bulb's resistance, we can rearrange Ohm's law to R = V/I. Knowing the total voltage (3.0V) and the current (600 mA or 0.600 A), we can find the total resistance in the circuit.

Subtracting the total internal resistance gives us the resistance of the bulb. As for the second part of the question, the power dissipated in the internal resistances can be found using P = I²r for each battery, and then add these together. The total power supplied by the batteries is P = IV, using the total current and total voltage. The fraction of the chemical energy that appears as internal energy in the batteries is then Pinternal / Ptotal.

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Answer:

Force, F = 16814.95 N

Explanation:

It is given that,

Mass of space station, m = 2010 kg

Altitude, [tex]d=5.35\times 10^5\ m[/tex]

Mass of earth, [tex]m=5.98\times 10^{24} kg[/tex]

Mean radius of earth, [tex]r=6.37\times 10^6\ m[/tex]

Magnitude of force is given by :

[tex]F=G\dfrac{Mm}{R^2}[/tex]

R = r + d

[tex]R=6.37\times 10^6\ m+5.35\times 10^5\ m=6905000\ m[/tex]

[tex]F=6.67\times 10^{-11}\times \dfrac{2010\ kg\times 5.98\times 10^{24} kg}{(6905000\ m)^2}[/tex]

F = 16814.95 N

So, the force between the space station and the Earth is 16814.95 N. Hence, this is the required solution.

Answer:

Magnetic field, B = 1.84 T

Explanation:

It is given that,

Charge on alpha particle, q = +2e = [tex]3.2\times 10^{-19}\ C[/tex]

Mass of alpha particle, [tex]m=6.6\times 10^{-27}\ kg[/tex]

Speed of alpha particles, [tex]v=1.6\times 10^7\ m/s[/tex]

We need to find the magnetic field strength required to bend them into a circular path of radius, r = 0.18 m

So, [tex]F_m=F_c[/tex]

[tex]F_m\ and\ F_c[/tex] are magnetic force and centripetal force respectively

[tex]qvB=\dfrac{mv^2}{r}[/tex]

[tex]B=\dfrac{mv}{qr}[/tex]

[tex]B=\dfrac{6.6\times 10^{-27}\ kg\times 1.6\times 10^7\ m/s}{3.2\times 10^{-19}\ C\times 0.18\ m}[/tex]

B = 1.84 T

So, the value of magnetic field is 1.84 T. Hence, this is the required solution.

The magnetic field strength required to bend them into a circular path is 1.83 T.

The magnetic force on the emitted charge is given as;

F = qvB

The centripetal force of the emitted charge is given as;

F = mv²/r

The magnetic field strength required to bend them into a circular path is calculated as follows;

qvB = mv²/r

[tex]B = \frac{mv}{rq}[/tex]

[tex]B = \frac{6.6 \times 10^{-27} \times 1.6 \times 10^7}{(2\times 1.6 \times 10^{-19} ) \times 0.18} \\\\B = 1.83 \ T[/tex]

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Answer:

Here, for parallel resisitors

Option D) all of the other choices are are true

is correct.

Explanation:

In parallel connection:

1) Voltage across each element connected in parallel remain same.

2) Kirchhoff's Current Law (KCL), sum of the current entering and leaving the junction will be zero

3) The equivalent resistance of the elements connected in parallel is always less than the individual resistance of any resistor in the circuit.

The equivalent resistance in a parallel circuit is given by:

[tex]\frac{1}{R_{eq}} = \frac{1}{R_1} +\frac{1}{R_2} +......+ \frac{1}{R_n}[/tex]

Final answer:

When resistors are connected in parallel, the voltage across each resistor is the same, the total current flowing from the battery equals the sum of the currents flowing through each resistor, and the equivalent resistance of the combination is less than the resistance of any one of the resistors.

Explanation:

When two or more resistors are connected in parallel to a battery:

The voltage across each resistor is the same. This is because in a parallel circuit, all the resistors have the same potential difference across them.

The total current flowing from the battery equals the sum of the currents flowing through each resistor. In a parallel circuit, the total current is divided among the different resistors.

The equivalent resistance of the combination is less than the resistance of any one of the resistors. This is because adding resistors in parallel decreases the overall resistance of the circuit.

Answer:

The second wavelength is 482 nm.

Explanation:

Given that,

Wavelength = 630 nm

Distance from central maxim = 0.51 m

Distance from central maxim of another wavelength = 0.39 m

We need to calculate the second wavelength

Using formula of width of fringe

[tex]\beta=\dfrac{\lambda d}{D}[/tex]

Here, d and D will be same for both wavelengths

[tex]\lambda[/tex] = wavelength

[tex]\beta [/tex] = width of fringe

The width of fringe for first wavelength

[tex]\beta_{1}=\dfrac{\lambda_{1} d}{D}[/tex]....(I)

The width of fringe for second wavelength

[tex]\beta_{2}=\dfrac{\lambda_{2} d}{D}[/tex]....(II)

Divided equation (I) by equation (II)

[tex]\dfrac{\beta_{1}}{\beta_{2}}=\dfrac{\lambda_{1}}{\lambda_{2}}[/tex]

[tex]\lambda_{2}=\dfrac{630\times10^{-9}\times0.39}{0.51}[/tex]

[tex]\lambda_{2}=4.82\times10^{-7}[/tex]

[tex]\lambda=482\ nm[/tex]

Hence, The second wavelength is 482 nm.

To find the second wavelength, we can use the formula for the wavelength of light from a diffraction grating. In this case, we know the first wavelength is 630 nm, the first bright spot is separated from the central maximum by 0.51 m, and we need to find the second wavelength.

To find the second wavelength, we can use the formula for the wavelength of light from a diffraction grating: wavelength = (m * d * sin(theta)) / n. In this case, we know the first wavelength is 630 nm, the first bright spot is separated from the central maximum by 0.51 m, and we need to find the second wavelength. The m and n values are the same for both cases, so we can set up the equation:

630 nm = (m * 0.51 m * sin(theta)) / n
wavelength = (m * 0.51 m * sin(theta)) / n

Next, we can solve for the second wavelength by rearranging the equation:

wavelength = (630 nm * n) / (m * 0.51 m * sin(theta))

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Answer:

v = 0.025 m/s

Explanation:

Given that the voltage is

[tex]V = 5000 x^2[/tex]

now at x = 0

[tex]V_1 = 0 Volts[/tex]

also we have at x = 8 cm

[tex]V_2 = 5000(0.08)^2 = 32 Volts[/tex]

now change in potential energy of the charge is given as

[tex]\Delta U = q\Delta V[/tex]

[tex]\Delta U = (10 \times 10^{-9})(32 - 0)[/tex]

now by mechanical energy conservation law

[tex]\frac{1}{2}mv^2 - 0 = 3.2 \times 10^{-7}[/tex]

[tex]\frac{1}{2}(1 \times 10^{-3})v^2 = 3.2 \times 10^{-7}[/tex]

[tex]v = 0.025 m/s[/tex]

The maximum speed of the particle in arrangement of source charges produces 32 volts electric potential is 0.025 meter per second.

Electric potential energy is the energy which is required to move a unit charge from a point to another point in the electric field.

It can be given as,

[tex]U=qV[/tex]

Here, (q) is the charge and (V) is the electric potential difference.

Given infroamtion-

The electric potential producers by the arrangement of source charges is given by,

[tex]V=5000x^2[/tex]

The mass of the particle is 1.0 gram.

The charge of the particles 10 nC.

As, the electric potential producers by the arrangement of source charges is given by,

[tex]V=5000x^2[/tex]

At the x equal to 8 cm or 0.08 m, the equation become,

[tex]V=5000(0.08)^2\\V=32\rm V[/tex]

Thus the potential difference at the is 32 volts.

The electric potential energy of the particle is,

[tex]U=10\times10^{-9}\times32\\U=3.2\times10^{-7}\rm j[/tex]

Now the electric potential energy is equal to the kinetic energy of the particle. Thus,

[tex]\dfrac{1}{2}\times0.001\times v^2=3.2\times10^{-7}\\v=0.025\rm m/s[/tex]

Thus the maximum speed of particle is 0.025 meter per second.

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Answer:

Magnetic field, B = 0.0045 T            

Explanation:

It is given that,

Speed of the proton, [tex]v=1.5\times 10^7\ m/s[/tex]

Acceleration of the proton, [tex]a=0.66\times 10^{13}\ m/s^2[/tex]

Charge on proton, [tex]q=1.6\times 10^{-19}\ C[/tex]

The magnetic force is balanced by the force due to the acceleration of the proton as :

[tex]qvB=ma[/tex]

[tex]B=\dfrac{ma}{qv}[/tex]

[tex]B=\dfrac{1.67\times 10^{-27}\ kg\times 0.66\times 10^{13}\ m/s^2}{1.6\times 10^{-19}\ C\times 1.5\times 10^7\ m/s}[/tex]

B = 0.0045 T

So, the magnitude of magnetic field on the proton is 0.0045 T. Hence, this is the required solution.

Answer:

[tex]\omega_O = 0.16 rad /sec[/tex]

Q = 0.24

Explanation:

given data:

resonant  angular frequency is given as  \omega_O = \frac{1}{\sqrt{LC}}

where L is inductor = 150 mH

C is capacitor = 0.25\mu F

[tex]\omega = \frac{1}{\sqrt{150*10^{6}*0.25*10^{-6}}}}[/tex]

[tex]\omega_O = 0.16 rad /sec[/tex]

QUALITY FACTOR is given as

[tex]Q = \frac{1}{R}{\sqrt\frac{L}{C}}[/tex]

Putting all value to get quality factor value

Q =[tex] \frac{1}{1000}{\sqrt\frac{150*10^{6}}{0.25*10^{-6}}}[/tex]

Q = 0.24

Final answer:

The maximum power dissipation in the resistor occurs at a frequency of approximately 1175.5 Hz in an RLC series circuit with the given values of R, L, and C. The quality factor of the circuit is approximately 57.74.

Explanation:

In an RLC series circuit, the maximum power dissipation in the resistor is achieved at the resonant frequency, which is given by the formula:

fr = 1 / (2π √LC)

Substituting the given values:

R = 100Ω, L = 150mH (or 0.15H), and C = 0.25μF (or 0.00000025F), we can calculate the resonant frequency:

fr = 1 / (2π √(0.15 x 0.00000025))

fr ≈ 1175.5 Hz

Therefore, the maximum power dissipation in the resistor occurs at a frequency of approximately 1175.5 Hz.

The quality factor (Q) of the circuit is a measure of its damping ability. It is given by the formula:

Q = R √C / L

Substituting the given values:

R = 100Ω, L = 150mH (or 0.15H), and C = 0.25μF (or 0.00000025F), we can calculate the quality factor:

Q = 100 √(0.00000025) / 0.15

Q ≈ 57.74

Therefore, the quality factor of the circuit is approximately 57.74.

Answer:

c. Throw the items away from the spaceship.

Explanation:

By the Principle of action and reaction yu can get back to your spacecraft throwing the items away from the spaceship.

Answer:

c. Throw the items away from the spaceship

Explanation:

The propulsion that throwing items away from the spaceship will propel you to the opposite direction in which you are throwing the objects, this means that if you throw the items away from the spaceship you will be getting force of rpopulsion towards the spaceship.

Answer:

c) Elastic Modulus

Explanation

As we know that when deformation is under elastic limit then stress applied to the given material is proportional to the strain developed in it

So here we can say that since they both are directly proportional to each other so the proportionality constant here is known as Modulus of elasticity.

So we can say it is given as

[tex]stress = E (strain)[/tex]

so now if we draw a graph between between stress and strain then it must be a straight line and the the slope of this straight line is given as

[tex]Slope = \frac{Stress}{Strain}[/tex]

So here correct answer will be

c) Elastic Modulus

Final answer:

The slope of the stress-strain curve in the elastic deformation region is known as the Elastic Modulus or Young's Modulus, which measures the stiffness of the material. The correct answer to the given question is 'c. Elastic Modulus'.

Explanation:

The slope of the stress-strain curve in the elastic deformation region represents the relationship between stress and strain under elastic conditions. This slope is in fact the Elastic Modulus, which is also known as Young's Modulus when it's in tension or compression. It serves as a measure of the stiffness or rigidity of the material, indicating how much stress is required to achieve a certain amount of strain.

In the context of a stress-strain curve, the plastic modulus is associated with plastic deformation, not the elastic region. Poisson's ratio is another material property that describes the ratio of transverse strain to axial strain, and is not the slope of the curve. Hence, the correct answer to the question is 'c. Elastic Modulus'.

Answer:

The amplitude of oscillation for the oscillating mass is 0.28 m.

Explanation:

Given that,

Mass = 0.14 kg

Equation of simple harmonic motion

[tex]x(t)=(0.28\ m)\cos[(8\ rad/s)t][/tex]....(I)

We need to calculate the amplitude

Using general equation of simple harmonic equation

[tex]y=A\omega \cos\omega t[/tex]

Compare the equation (I) from general equation

The amplitude is 0.28 m.

Hence, The amplitude of oscillation for the oscillating mass is 0.28 m.