Explanation:
In positional number system,
1. each symbol represents different value depending on the position they occupy in a number.
2. In positional number system, each system has a value that relates to the number directly next to it. The total value of a positional number is the total of the resultant value of all positions.
3. Example: 12 can be 1 x 10 + 2 x 1, 10 + 2= 12
whereas in Non-Positional number
1. In non-positional number system, each symbol represents the same value regardless of its position
2. In non-positional number system each symbol represents a number with its own place value.
3. Example: Roman number system where I for 1, II for 2 etc.
~~
If a train is traveling eastward with a constant velocity of 15 m/s, what is the net external force action on it? There is not enough information, so it cannot be solved. There is no net force acting on the train. the force from the engines
Answer:
There is no net force acting on the train.
Explanation:
The net force equals mass times acceleration:
∑F = ma
The train moves at constant velocity, so its acceleration is 0. Therefore, the net force is 0.
If 10 N force is depressed a typewritter key through 10 cm in 1 sec . Find average power?
Explanation:
Power = work / time, and work = force × distance
P = Fd / t
P = (10 N) (0.10 m) / (1 s)
P = 1 W
The average power is 1 Watt.
Which type of process happens without gain or loss of heat
Answer: adiabatic
Explanation:
what is mechinical advantage
Explanation:
Mechanical is the ratio of the output and input forces.
For example, if a lever is balanced in the middle, then pushing on one end will yield the same amount of force on the other end. So the mechanical advantage is 1.
If instead that lever is balanced so that one side is twice as long as the other, then pushing on the long end will yield twice the force on the short end. The mechanical advantage would be 2.
the advantage gained by the use of a mechanism in transmitting force
specifically : the ratio of the force that performs the useful work of a machine to the force that is applied to the machine
a cat started at a distance of 5.4 m away from your front door and began walking directly away from it. 2 minutes later, the cat was 9.3 m from your door. if d is the distance of the cat from the door, what is (delta)d
A. 3.9
B. 9.3
C. 5.4
D. 2
Explanation:
The variation in distance [tex]\Delta d[/tex] is given by:
[tex]\Delta d=d_{f}-d_{o}[/tex] (1)
Where [tex]d_{f}=9.3m[/tex] is the final distance of the cat from the door and [tex]d_{o}=5.4m[/tex] is the initial distance of the cat from the door.
Solving (1) with the known values:
[tex]\Delta d=9.3m-5.4m=3.9m[/tex] (2)
Hence:
[tex]\Delta d=3.9m[/tex]
According to the periodic table, which of the following is the correct symbol for
the element lead?
OA. Li
o B. Ag
o C. La
OD. Pb
Help
Answer:
D.
Explanation:
P
The symbol for lead is Pb: it comes from the latin name for it, which is plumbum.
Final Answer:
The correct symbol for the element lead is Pb.
Explanation:
This question demands basic understanding of periodic table and its elements along with symbols of all the elements in a proper sequence of their appearance.
The correct symbol for the element lead, according to the periodic table, is Pb. The element lead has an atomic number of 82, which means it has 82 protons. Mass of lead is 207.2. The symbol Pb represents the element lead in chemical equations and on the periodic table.
Some important properties of lead are that it is denser than many elements of periodic table and at the same time it is malleable and soft enough.
How do you get a resultant factor ?
A. Add two or more vectors
B. Add two scalars
C. Multiply two scalars
D. Multiply two vectors
Resultant is a term describing the sum of two or more vectors.
Choice A
When adding or subtracting vectors, the final outcome is known as the resultant vector. Understanding how to add vectors helps find the resultant vector by combining magnitudes and directions. Vector multiplication can lead to a triple scalar product, resulting in a scalar value.
The final quantity you get when adding or subtracting vectors is called the resultant vector. In other words, the individual vectors can be replaced by the resultant - the overall effect is the same.
When dealing with adding two or more vectors, the process involves adding the vectors head-to-tail to determine the resultant vector. The resultant vector combines the magnitudes and directions of the original vectors.
The product A (B X C) in vector multiplication refers to the triple scalar product, which results in a scalar quantity obtained by multiplying three vectors.
An electric charge in a magnetic field will experience no force if the charge is moving _______ to the field.
perpendicular
parallel
Answer:
Parallel
Explanation:
An electric charge in a magnetic field will experience no force if the charge is moving parallel to the field.
No force is exerted on electric charge when it moves parallel to magnetic field.
Answer: Parallel
Explanation:
When the electric charge moves parallel in a magnetic field, the component of velocity and field becomes zero which results in net force as zero.
This due to the sine component which makes zero angle and thus component as zero too. The force on the charge moving in magnetic field is perpendicular to velocity and field.
what was the western roman Catholic main language
Answer:
Italian
Explanation:
The Western Roman Catholic's main language was Italian.
The 2.50 kg cube in the figure has edge lengths d = 6.50 cm and is mounted on an axle
through its center. A spring (k = 900 N/m) connects the cube's upper corner to a rigid wall.
Initially the spring is at its rest length. If the cube is rotated 2.00° and released, what is the
period of the resulting SHM?
Answer:
0.191 s
Explanation:
The distance from the center of the cube to the upper corner is r = d/√2.
When the cube is rotated an angle θ, the spring is stretched a distance of r sin θ. The new vertical distance from the center to the corner is r cos θ.
Sum of the torques:
∑τ = Iα
Fr cos θ = Iα
(k r sin θ) r cos θ = Iα
kr² sin θ cos θ = Iα
k (d²/2) sin θ cos θ = Iα
For a cube rotating about its center, I = ⅙ md².
k (d²/2) sin θ cos θ = ⅙ md² α
3k sin θ cos θ = mα
3/2 k sin(2θ) = mα
For small values of θ, sin θ ≈ θ.
3/2 k (2θ) = mα
α = (3k/m) θ
d²θ/dt² = (3k/m) θ
For this differential equation, the coefficient is the square of the angular frequency, ω².
ω² = 3k/m
ω = √(3k/m)
The period is:
T = 2π / ω
T = 2π √(m/(3k))
Given m = 2.50 kg and k = 900 N/m:
T = 2π √(2.50 kg / (3 × 900 N/m))
T = 0.191 s
The period is 0.191 seconds.
The period of the resulting SHM is : 0.191 sec
Given data :
Edge length of cube = 6.50 cm
Spring ( K ) = 900 N/m
Radius ( r ) = [tex]\frac{d}{\sqrt{2} }[/tex]
mass ( m ) = 2.50 kg
Determine the period of the resulting SHM
Distance stretched by the spring when the cube is stretched through θ = r sin θ
Vertical distance from the center = r cos θ
F = k r sin θ
next step : determine the sum of torques
sum of torques ( ∑τ ) = I∝
F * r cos θ = I∝
( k r sin θ ) r cos θ = I∝
k (d²/2) sin θ cos θ = I∝ ------ ( 1 )
Note : For cube rotating around its center I = 1/6 md²
Back to equation ( 1 )
k (d²/2) sin θ cos θ = 1/6 md² * ∝
[tex]\frac{3}{2}[/tex] k sin(2θ) = m∝ ( sin θ ≈ θ for small values like 2° )
∴ ∝ = ( 3k / m ) θ
d²θ/dt² = ( 3k / m ) θ
∴ Angular frequency ( w ) = √ (3k/m)
Final step : Calculate the value of the period of the resulting SHM
T = 2π / ω
= 2π / √( m / (3k) )
= 2π / √(2.50 kg / (3 * 900 N/m))
= 0.191 sec
Learn more about oscillating Period : https://brainly.com/question/20070798
Physics is the study of what?
Answer: Physics is the study of Nature.
Explanation: The knowledge of Nature is the natural science that studies matter, its motion and behavior through space and time, and that studies the related entities of energy and force. Hope this helps. :D
2 Points
You throw a football straight up into the air with a speed of 12.2 m/s. How
high does the ball go?
O
O
A. 7.6 m
B. 9.1 m
O
c. 3.2 m
O
D. 0.62 m
SUBMIT
Answer: 7.6
Explanation:
A ray diagram is shown.
Which describes the image?
•It is virtual and in front of the mirror.
•It is virtual and behind the mirror.
•It is real and in front of the mirror.
•It is real and behind the mirror.
Answer:
It is virtual and behind the mirror
Explanation:
When an image is produced by a mirror, we have the following situations:
- The image is said to be in front of the mirror if it is on the same side of the object, with respect to the mirror
- The image is said to be behind of the mirror if it is on the opposite side of the object, with respect to the mirror
Moreover:
- The image is said to be real if it is in front of the mirror
- The image is said to be virtual if it is behind the mirror
In this case, the image (located at point I) is on the opposite side of the object (located at point O), so it is virtual and behind the mirror.
Answer:
virtual and behind the mirror...hope this helps :))))
31. A big 8 kg fish swimming at 3 m/s opens its mouth and swallows a small 2 kg fish swimming
away from it at 1 m/s. Presume water resistance is negligible. Show your calculations.
(A) What is the momentum of the two fish system after the smaller fish has been
swallowed?
(B) What is the speed of the two fish system after the smaller fish has been swallowed?
(Hint: first figure the mass of the two fish system.)
Explanation:
This problem is a good example of an inelastic collision, in which the elements that collide remain together after the collision, and althogh the kinetic energy is not conserved, the linear momentum [tex]p[/tex] does.
Thus: [tex]p=m.V[/tex] (1)
Where [tex]m[/tex] is the mass and [tex]V[/tex] the velocity.
[tex]p_{i}=p_{f}[/tex] (2)
Where [tex]p_{i}[/tex] is the initial momentum and [tex]p_{f}[/tex] the final momentum.
(A) Momentum of the two fish system after the smaller fish has been swallowed[tex]p_{i}=m_{i1}V_{i1}+m_{i2}V_{i2}[/tex] (3)
Where [tex]m_{i}=8kg[/tex] is the initial mass (mass of the big fish) and [tex]V_{i}=3m/s[/tex] is the initial velocity of the big fish, [tex]m_{i2}=2kg[/tex] is the initial mass of the small fish and [tex]V_{i2}=1m/s[/tex] is the initial velocity of the small fish.
[tex]p_{i}=(8kg)(3m/s)+(2kg)(1m/s)=26kg.m/s[/tex] (4)
By the conservation of linear momentum:
[tex]p_{i}=p_{f}=26kg.m/s[/tex] (5)
(B) Speed of the two fish system after the smaller fish has been swallowedIn this case we will focus on [tex]p_{f}[/tex] (after the "collision"):
[tex]p_{f}=(m_{i1}+m_{i2})V[/tex] (6)
Where [tex]V[/tex] is the velocity of the system of both fish.
Finding [tex]V[/tex]:
[tex]V=\frac{p_{f}}{m_{i1}+m_{i2}}[/tex] (7)
Solving (7) and remembering [tex]p_{i}=p_{f}[/tex]:
[tex]V=\frac{26kg.m/s}{8kg+2kg}[/tex] (8)
Finally:
[tex]V=2.6m/s[/tex]
With what speed must a ball be thrown vertically up in order to rise to a maximum height of 45m? And for how long will it be in air?
1) 29.7 m/s
We can solve the first part of the problem by using the law of conservation of energy. In fact, the initial kinetic energy when the ball is thrown from the ground will be entirely converted into gravitational potential energy as the ball reaches its maximum heigth, so we can write:
[tex]\frac{1}{2}mv^2 = mgh[/tex]
where
m is the mass of the ball
v is the initial speed
g is the acceleration of gravity
h is the maximum height
Re-arranging the equation:
[tex]v=\sqrt{2gh}[/tex]
and substituting:
g = 9.8 m/s^2
h = 45 m
We find
[tex]v=\sqrt{2(9.8)(45)}=29.7 m/s[/tex]
2) 6.0 s
First of all, we can calculate how long the ball takes to reach the maximum height. This can be done by using the equation:
[tex]v=u+at[/tex]
where
v = 0 is the final speed of the ball, when it is at its maximum height
u = 29.7 m/s is the initial speed
a = -g = -9.8 m/s^2 is the acceleration of gravity (negative because it is downward)
t is the time
Solving for t,
[tex]t= \frac{v-u}{a}=\frac{0-29.7}{-9.8}=3.0 s[/tex]
So the ball takes 3.0 s to reach the maximum heigth. The time it takes to fall down again is equal, so also 3.0 s, so the total time of the motion is
t = 3.0 + 3.0 = 6.0 s
How do you find the speed of an electromagnetic wave? Multiply the wavelength by the frequency. Dvide the frequency by the wavelength. Add the wavelength plus the frequency. Divide the wavelength by the frequency.
Answer:
Multiply the wavelength by the frequency.
Explanation:
The velocity of a wave is the frequency times the wavelength.
A copper calorimeter of mass 120g contains 70g of water and 10g of ice at 0 °C. What mass of steam at 100°C must be passed into calorimeter to raise the temperature to 40°C.
Answer:
Approximately 73 grams if no heat is lost in this process.
Explanation:
Relevant data and their sources:
Specific heat capacity of copper: [tex]c(\text{Copper}) = \rm 0.385\;J\cdot g^{-1}[/tex] (cpanhd, IUN.edu);Specific heat capacity of water: [tex]c(\text{Water}) = \rm 4.179\;J\cdot g^{-1}[/tex] (ibid.);Latent heat of fusion of water: [tex]L_\mathrm{F}(\text{Water}) = \rm 334\;J\cdot g^{-1}[/tex] (Legates 2005);Latent heat of vaporization of water: [tex]L_\mathrm{V}(\text{Water}) = \rm 2.260\;J\cdot g^{-1}[/tex] (Datt 2001).How much heat is needed?The heat it takes to raise the calorimeter and its content from 0°C to 40°C includes three parts:
The heat it takes to melt that 10 grams of ice, The heat it takes to heat that [tex]70 + 10 = 80[/tex] grams of water from 0°C to 40°C, andThe heat it takes to heat the 120-gram calorimeter from 0°C to 40°C.Note that to avoid rounding errors, most calculations in this explanation do not follow significant figure rules.
How much heat will it take to melt that 10 grams of ice?The latent heat of fusion of water gives the amount of heat required to melt each unit mass of ice at 0°C to water without changing the temperature. (As a side note, that's also the amount heat released when unit mass of water turns into ice at 0°C.)[tex]L_\mathrm{F}(\text{Water}) = \rm 334\;J\cdot g^{-1}[/tex]. Melting each gram of ice requires approximately 334 joules of heat, so melting 10 grams of ice will require about 3,340 joules of heat.
How much heat will it take to heat that 80 grams of water from 0°C to 40°C?There's no state change involved after all that 10 grams of ice melted into water. There's now 80 grams of water at 0°C to melt. The specific heat of water gives the amount of energy required to raise one gram of water by one degree Celsius (which is the same as one degree Kelvin.) [tex]c(\text{Water}) = \rm 4.179\;J\cdot g^{-1}[/tex].
[tex]Q(\text{water}) = c(\text{water})\cdot m(\text{water}) \cdot \Delta T = \rm 4.179\times 80\times 40 = 13372.8\; J[/tex].
How much heat will it take to heat that 120-gram calorimeter from 0°C to 40°C?The melting point of copper is approximately 1,100°C, which is much higher than 100 °C. As a result, there will not be any state change in this process. [tex]c(\text{Copper}) = \rm 0.385\;J\cdot g^{-1}[/tex]. Similarly,
[tex]Q(\text{copper}) = c(\text{copper})\cdot m(\text{copper}) \cdot \Delta T = \rm 0.385\times 120\times 40 = 1848\; J[/tex].
How much heat is required in total?Combining all three parts:
[tex]\rm 3340 + 13372.8 + 1848 = 18560.8\; J[/tex].
How much steam at 100°C will be required?The steam added to the calorimeter will first condense to form water of 100°C before cooling down to 40°C. The energy released in that process will come in two parts:
The energy released while the steam condenses to water at 100°C, andThe energy released while the water formed cools from 100°C to 40°C.To simplify the calculations, let the mass of steam required be [tex]x[/tex] grams. [tex]x>0[/tex].
How much energy will be released when that [tex]x[/tex] grams of steam condenses to water?Similar to the latent heat of fusion of water, the latent heat of vaporization of water gives the amount of heat released for each unit mass of steam that condenses to water at 100°C without change in temperature. (As a side note, that's also the amount of energy required to turn unit mass of water into steam at 100°C.) [tex]L_\mathrm{V}(\text{Water}) = \rm 2.260\;J\cdot g^{-1}[/tex]. In other words, each gram of steam that condenses at 100°C will release approximately 2.260 joule. [tex]x[/tex] grams of steam that condenses at 100°C will release [tex]2.260x[/tex] joules of heat.
How much energy will be released when that [tex]x[/tex] grams of steam condenses to water?Similar to the heat required to heat 80 grams of water from 0°C to 40°C, the heat released when [tex]x[/tex] grams of steam condenses to water can also be found with the specific heat capacity of water. [tex]c(\text{Water}) = \rm 4.179\;J\cdot g^{-1}[/tex].
[tex]Q(\text{water}) = c(\text{water})\cdot m(\text{water}) \cdot \Delta T = \rm 4.178\cdot \mathnormal{x}\times (100 - 40)=250.68\mathnormal{x} \; J[/tex].
How much energy will be released in total when [tex]x[/tex] grams of steam condenses to water at 100°C and cools to 40°C?[tex]2.260x + 250.68x = \rm 252.94\mathnormal{x}\;J[/tex].
Again, how much steam at 100°C will be required?The amount of heat released shall equal to amount of heat absorbed. As a result,
[tex]252.94x = 18560.8[/tex].
[tex]\displaystyle x = \rm\frac{18560.8}{252.94}\approx 73\;g[/tex].
In other words, approximately 73 grams of steam at 100°C will be required to heat that calorimeter and its contents to 40°C.
Answer:
7.4 g
Explanation:
Heat absorbed by copper:
= mc Cc ΔTc
= (120 g) (0.39 J/g/°C) (40°C − 0°C)
= 1872 J
Heat absorbed by ice:
= mi Li + mi Cw ΔTi
= (10 g) (334 J/g) + (10 g) (4.18 J/g/°C) (40°C − 0°C)
= 5012 J
Heat absorbed by water:
= mw Cw ΔTw
= (70) (4.18 J/g/°C) (40°C − 0°C)
= 11704 J
Heat lost by steam:
= ms Ls + ms Cw ΔTs
= m (2264.7 J/g) + m (4.18 J/g/°C) (100°C − 40°C)
= 2515.5 J/g m
1872 J + 5012 J + 11704 J = 2515.5 J/g m
m = 7.39 g
Rounded to two significant figures, the mass of steam needed is 7.4 grams.
A block of wood has a length of 4 cm, a width of 5 cm, and a height of 10 cm. What is the volume of the wood? 20 cm³ 19 cm³ 50 cm³ 200 cm³
Answer:
200 cm cube
Explanation:
The formula for volume is length * breadth * height so we get 200 cm cube as answer.
Answer:
The answer is d. 200 cm3.
Explanation:
The volume of the block is equals to the length multiply width and multiply height. So the volume of the wood is 4*5*10=200 cm3.
When elements come together to make compounds, they retain their individual properties.
True
False
Answer:
true
Explanation:
Answer: False
Explanation:
When elements combine to form a product, they lose their individual unique property to form new properties identical to the compound formed. This lose in property could be natural state of matter, malleability, magnetic property, texture etc. Eg Hydrogen (H) combines with Oxygen to form variety of compounds conforming to various oxides. When two molecules of H combined with one molecule of oxygen, water which it's natural state is liquid is form hence losing the natural gaseous state of oxygen or hydrogen.
Another example is sodium and chlorine to form sodium chloride (table salt). Sodium is a group one metal and chlorine a gaseous element in group 17 which is greenish yellow in colour combines to form sodium chloride which its white in colour. Hence lose in color property has occurred in the new compound.
what is 362 equal to 126 subtracted from r?
Answer:
488 = r
Explanation:
362 = -126 + r; 488 = r
I am joyous to assist you anytime.
A skydiver jumps out of a plane. A moment later, the skydiver feels considerable air resistance pushing against her but she is still accelerating downwards. When drawing the free body diagram, the force vector arrow for the air resistance should be drawn
The arrow should be drawn upwards but the magnitude of force (arrow representing air resistance) should be shorter than the arrow representing gravity
The frequency of a wave determines which of the following?
loudness
reflection
energy
pitch
Answer:
loudness
Explanation:
Frequency is determined by speed / wavelength. The longer the wavelength, the lower the pitch. The 'height' of the wave is its amplitude. The amplitude determines how loud a sound will be
The wave frequency determines the pitch of the sound.
Answer: Option D
Explanation:
The wave frequency determines the pitch of the sound as the sound wave has the frequency which is sensibly understood by the human ear as the pitch. Pitch has two category, high pitch and low pitch.
A high pitch sound is one which has the rapid or more frequent oscillation and on the other hand, low pitch sound is the one which has slow or less frequent oscillation in the sound wave.
A satellite with a mass of 5.6 E 5 kg is orbiting the Earth in a circular path. Determine the satellite's velocity if it is orbiting at a distance of 9.8 E 5 m above the Earth's surface. Earth's mass = 5.98 E 24 kg; Earth's radius = 6.357 E 6 m.
Answer:
7400 m/s
Explanation:
Centripetal acceleration = gravity
v² / r = GM / r²
v = √(GM / r)
Given:
G = 6.67×10⁻¹¹ m³/kg/s²
M = 5.98×10²⁴ kg
r = 9.8×10⁵ + 6.357×10⁶ = 7.337×10⁶ m
v = √(6.67×10⁻¹¹ (5.98×10²⁴) / (7.337×10⁶))
v = 7400
The orbital velocity is 7400 m/s.
This question involves the concepts of centripetal force and gravitational force of attraction.
The velocity of the satellite is "7373.17 m/s".
For the satellite to continue its motion in a circular path its centripetal force must be equal to the gravitational force:
[tex]F_c=F_G\\\\\frac{mv^2}{r}=\frac{GmM}{r^2}\\\\v^2=\frac{GM}{r}\\\\v=\sqrt{\frac{GM}{r}}[/tex]
where,
v = speed of satellite = ?
G = universal gravitational constant = 6.67 x 10⁻¹¹ N.m²/kg²
M = Mass of Earth = 5.98 x 10²⁴ kg
r = distance of satellite + radius of earth = 9.8 x 10⁵ m + 6.357 x 10⁶ m
r = 7.337 x 10⁶ m
Therefore,
[tex]v=\sqrt{\frac{(6.67\ x\ 10^{-11}\ N.m^2/kg^2)(5.98\ x\ 10^{24}\ kg)}{7.337\ x\ 10^6\ m}}[/tex]
v = 7373.17 m/s
Learn more about centripetal force here:
brainly.com/question/11324711?referrer=searchResults
The attached picture shows the centripetal force.
A car increases its speed from 20 km/s to 50 km/ h in 10 seconds what its is acceleration ?
Answer:
0.8 m/s²
Explanation:
Convert km/h to m/s:
20 km/h × (1000 m / km) × (1 h / 3600 s) = 5.56 m/s
50 km/h × (1000 m / km) × (1 h / 3600 s) = 13.89 m/s
Acceleration is change in velocity over change in time:
a = Δv / Δt
a = (13.89 m/s − 5.56 m/s) / 10 s
a = 0.83 m/s²
Rounded to one significant figure, the car accelerates at 0.8 m/s².
Which of the following involves a change in which energy is absorbed
A. Campfire
B. Running Cat
C. Heating Pad
D. Melting Ice
Answer:
D) Melting ice
Its absorbtion of heat is the reason it's melting
Answer: D
Explanation:
The answer is D. Melting Ice
what increase electrical resistance of metal?
Answer:
Explanation:
The resistivity of a metal is given as
rho = k * l/Area
k is a constant associated with the metal
l is the length of the metal
A is the cross sectional area.
If you decrease the area and increase the length, you will increase the resistance. Always try and do physics problems by a formula of some kind.
5. An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg, and the two objects stick together. If the momentum is conserved, what is the new velocity of the combined object? Round to the nearest hundredth.
A. 34.78 m/s
B. 15.82 m/s
C. 69.56 m/s
D. 18.60 m/s
Answer:
D. 18.60
Explanation:
By the law of conservation, the momentum is neither loss nor gained but instead transfered. When they crash into each other, and stick, they combine to create a total mass of 215 kg. Since the momentum is transfered, the two objects, combined, have a total momentum of 4000 kg-m/s. We know that momentum equals mass times velocity. You then divide 4000 by 215 and get approximately 18.6 m/s
3. If the average acceleration of a cheetah is 8 m/s, what will its velocity be after 3 seconds if it is
initially walking at 1 m/s?
a) 22 m/s
b) 23m/s
c) 24 m/s
d) 25 m/s
Answer:
d) 25 m/s
Explanation:
Acceleration is change in velocity over change in time:
a = Δv / Δt
8 m/s² = (v − 1 m/s) / 3s
v = 25 m/s
ability to dissolve in water
Answer:
the ability to disolve in water is solubility
The ability of one substance to dissolve in another one is its solubility.
Its ability to dissolve in water is its "solubility in water".
Its ability to dissolve in chicken soup is its "solubility in chicken soup".
Its ability to dissolve in vodka is its "solubility in vodka".
They may all be different.
The centripetal force depends on the mass of body, angular velocity and radius of circular path. Find the expression for the centripetal force.
Centripetal force, directed towards the center of a circle, can be expressed using the formulas Fc = mv^2/r (using tangential speed) or Fc = mrw^2 (using angular velocity), where m is the mass, v is the speed, w is the angular velocity, and r is the radius of the circular path.
The centripetal force is the force that keeps an object moving in a circular path and is directed towards the center of the circle. The expression for centripetal force can be derived from the centripetal acceleration, which is given by ac = v2/r and ac = rw2.
When we apply Newton's second law (F = ma), we can express the centripetal force using the formula Fc = mv2/r; this version uses the tangential speed (v) of the object. Alternatively, using angular velocity (w), the formula is Fc = mrw2. The mass (m) of the object, the speed (v), angular velocity (w), and the radius (r) of the circular path all factor into the magnitude of the centripetal force.
The centripetal force is always perpendicular to the tangential velocity of the object and points towards the center of the circle. This ensures that the object continues moving in a curved path rather than in a straight line.