Due to missing information such as the time of the wrist flick or the frisbee's moment of inertia, we cannot calculate the exact torque that the student applied to the frisbee. To find the torque, we would need to determine the angular acceleration based on the provided angular velocity and the additional data.
To answer the question about the magnitude of the torque applied by a student to a frisbee rotating at 570 revolutions per minute (rpm), we need to consider several factors, including the angular velocity, the moment of inertia, and the time during which the torque was applied. However, the problem statement does not provide all the necessary information (like the time duration and the moment of inertia of the frisbee).
Typically, to calculate the torque, you would use the formula: torque (\(\tau\)) = moment of inertia (I) \(\times\) angular acceleration (\(\alpha\)). The angular acceleration could be found if we had the time duration for the quarter-turn and the final angular velocity.
Since these key pieces of data are missing in the student's problem, we cannot calculate the exact torque without additional information. If the time duration of the wrist flick or the moment of inertia of the frisbee were provided, we could find the angular acceleration using \(\alpha = \Delta\omega / \Delta t\), where \(\Delta\omega\) is the change in angular velocity and \(\Delta t\) is the change in time. From there, the torque could be calculated.
The torque applied by the student on the frisbee can be calculated using the formula torque = moment of inertia x angular acceleration. The primary force acting on the student when flicking the frisbee is the force applied perpendicular to the frisbee's radius.
Calculating the torque: To find the torque applied by the student on the frisbee, we can use the formula for torque, which is given by torque = moment of inertia × angular acceleration. First, convert the frisbee's initial angular velocity of 570 rpm to radians per second by multiplying by 2π/60.
Forces acting on the student: The primary force acting on the student when flicking the frisbee is the force applied perpendicular to the frisbee's radius. This force creates a torque and initiates the rotational motion of the frisbee.
A weight lifter holds 100 kg above his head for 5 seconds. What is the work done on the weights?
Which of the following waves have the lowest energy?
Gamma waves
Radio waves
Visible light
X-rays
Answer:
The answer is radio waves
Hope that helps! :)
The type of radiation that humans sense as heat is _____. ultraviolet visible microwave infrared
Which type of light energy found in solar radiation is most likely to reach earth's surface?
the answer is visible light
A simple pendulum has a mass of 0.350 kg and a length of 7.00 m. It is displaced through an angle of 8.0° and then released. Using the analysis model of a particle in simple harmonic motion, calculate the following. (Give your answer to the thousandths place.)
(a) What is the maximum speed of the bob?
-I already found it to be 1.156 m/s
(b) What is the maximum angular acceleration of the bob?
(c) What is the maximum restoring force of the bob?
(d) Solve parts (a)through (c) by using other analysis models. (Hint: you may need to use separate analysis models for each part.)
m,
To summarize, the maximum angular acceleration of the pendulum's swing is 0.019 rad/s², and the maximum restoring force is 0.479 N, calculated using the principles of simple harmonic motion and confirmed with energy conservation principles.
Explanation:To find the maximum angular acceleration, we can use the formula for angular acceleration: α = δθ/δt². In the context of a simple pendulum like this one, the angular acceleration at its maximum displacement is α = g/L * sin(θ), where g is the acceleration due to gravity (9.81 m/s²) and L is the length of the pendulum. Substituting the given values in, we find α = (9.81 m/s²/7.00 m) * sin(8.0°) = 0.019 rad/s² to three decimal places.
The maximum restoring force can be found using the formula F = ma, where m is the mass and a is the acceleration. In this case, the maximum restoring force, F = 0.350 kg * 9.81 m/s² * sin(8.0°) = 0.479 N to three decimal places.
To confirm these calculations, we could use an alternative model, such as energy conservation. In the energy model, the potential energy at the point of maximum displacement (the highest point of swing) is converted to kinetic energy at the lowest point. We also know that maximum restoring force coincides with maximum displacement in simple harmonic motion, while maximum speed (already calculated and given as 1.156 m/s) coincides with the position of equilibrium (the bottom of the swing).
Learn more about Simple Harmonic Motion here:https://brainly.com/question/28208332
#SPJ12
Part (a):- [tex]\( v_{\text{max}} = 1.156 \)[/tex] m/s, which is correct. This part is complete.
Part (b):- [tex]\[ \alpha_{\text{max}} \approx 0.0280 \, \text{rad/s}^2 \][/tex]
Part (c):- [tex]\[ F_{\text{max}} \approx 0.4806 \, \text{N} \][/tex]
Part (d):- These models provide a comprehensive approach to analyze the motion of the simple pendulum, considering kinetic energy, potential energy, and forces involved.
Given data:
- Mass of the pendulum bob, m = 0.350 kg
- Length of the pendulum, L = 7.00 m
- Maximum angle of displacement,[tex]\( \theta = 8.0^\circ = 8.0 \times \frac{\pi}{180} \)[/tex] radians
Part (a): Maximum Speed of the BobYou've already found this to be [tex]\( v_{\text{max}} = 1.156 \)[/tex] m/s, which is correct. This part is complete.
Part (b): Maximum Angular Acceleration of the BobThe maximum angular acceleration occurs at the maximum displacement, when the restoring force is at its maximum.
1. Calculate the gravitational acceleration:
[tex]\[ g = 9.81 \, \text{m/s}^2 \][/tex]
2. Calculate the maximum restoring torque:
The torque due to gravity at maximum displacement is:
[tex]\[ \tau = mg \sin \theta \][/tex]
where[tex]\( \theta \)[/tex] is the angle of displacement.
[tex]\[ \tau = 0.350 \, \text{kg} \times 9.81 \, \text{m/s}^2 \times \sin(8.0^\circ) \][/tex]
[tex]\[ \tau \approx 0.350 \times 9.81 \times 0.1392 \approx 0.4806 \, \text{Nm} \][/tex]
3. Calculate the moment of inertia of the pendulum bob:
[tex]\[ I = m L^2 \][/tex]
[tex]\[ I = 0.350 \, \text{kg} \times (7.00 \, \text{m})^2 = 17.15 \, \text{kg} \cdot \text{m}^2 \][/tex]
4. Calculate the maximum angular acceleration [tex]\( \alpha_{\text{max}} \):[/tex]
[tex]\[ \alpha_{\text{max}} = \frac{\tau}{I} \][/tex]
[tex]\[ \alpha_{\text{max}} = \frac{0.4806}{17.15} \][/tex]
[tex]\[ \alpha_{\text{max}} \approx 0.0280 \, \text{rad/s}^2 \][/tex]
Part (c): Maximum Restoring Force of the BobThe maximum restoring force occurs at maximum displacement:
1. Calculate the maximum restoring force [tex]\( F_{\text{max}} \):[/tex]
[tex]\[ F_{\text{max}} = mg \sin \theta \][/tex]
[tex]\[ F_{\text{max}} = 0.350 \, \text{kg} \times 9.81 \, \text{m/s}^2 \times \sin(8.0^\circ) \[/tex]]
[tex]\[ F_{\text{max}} \approx 0.350 \times 9.81 \times 0.1392 \approx 0.4806 \, \text{N} \][/tex]
Part (d): Using Other Analysis ModelsLet's summarize the solutions using other analysis models:
1. Energy Analysis Model (Kinetic and Potential Energies):
- Maximum speed of the bob: [tex]\( v_{\text{max}} = 1.156 \) m/s[/tex]
- Maximum potential energy: [tex]\( PE_{\text{max}} = mgh \)[/tex]
- Maximum kinetic energy: [tex]\( KE_{\text{max}} = \frac{1}{2}mv_{\text{max}}^2 \)[/tex]
2. Force Analysis Model:
- Maximum restoring force: [tex]\( F_{\text{max}} = mg \sin \theta \)[/tex]
- Maximum angular acceleration: [tex]\( \alpha_{\text{max}} = \frac{\tau}{I} \),[/tex] where [tex]\( \tau = mg \sin \theta \) and \( I = mL^2 \)[/tex]
Electromagnetic waves travel through space at a speed of _____.
a. 3,000,000 kilometers per second
b. 3,000 kilometers per second
c. 300,000 kilometers per second
d. 30,000 kilometers per second
Ans: C) 300,000 kilometers per second
Electromagnetic waves are created by the movement of charges. This results in the generation of electric and magnetic fields which oscillate in a direction perpendicular to each other.
Electromagnetic waves carry a certain wavelength, frequency and speed. The speed of such waves as they travel through space is equal to the speed of light (c) = 3*10⁸ m/s
since 1 km = 10³ m
speed, c = 1 km * 3*10⁸ ms-1/10³ m
= 300, 000 km/s
What are the characteristics of high energy waves?
Choose one answer.
a. low frequencies and short wavelengths
b. high frequencies and long wavelengths
c. low frequencies and long wavelengths
d. high frequencies and short wavelengths
@agent0smith,
The Earth’s gravitational force that attracts the sun is __________ the sun’s gravitational force to attract the Earth?
A. less than
B. equal to
C. greater than
D. centrifugal
E. none of the above
Which statement best describes how a wave would move differently through a pot of boiling water than the steam created from it?
Hello. This question is incomplete. The complete question is:
"Which statement best describes how a wave would move differently through a pot of boiling water than the steam created from it? The wave would move faster through the water than through the steam. The wave would move slower through the water than through the steam. The wave would move the same speed through the water and the steam. The wave would move through the water and steam at the same speed, but decrease in speed at the transition point. "
Answer:
The wave would move faster through the water than through the steam.
Explanation:
As we already know, the water molecules at the moment when the water is boiling move very fast, due to the thermal energy that acts on them. This movement causes the mileculas to collide with each other quickly, for this reason we can observe that movement of the boiling water. This makes the wave movement in the boiling water fast.
On the other hand, all this movement is not seen in water vapor molecules, since the space between them is larger and there is no energy acting directly on them. For this reason, we can say that, through steam, the wave would not move with such speed.
Electrical energy is produced by power plants. Then, it is transferred to our homes through wires. What happens to the electrical energy when it passes through a household device such as a blender or a toaster? A. It is immediately dispersed through the surroundings. B. It doesn't pass through household devices. C. It remains electrical energy. D. It is transformed into another form of energy.
Electrical energy is transformed into other forms of energy such as mechanical or thermal when passing through household devices like blenders or toasters.
When electrical energy passes through a household device such as a blender or a toaster, it is transformed into another form of energy. This process is known as energy transformation. For instance, in a blender, the electrical energy is converted into mechanical energy to spin the blades, and in a toaster, it is transformed into thermal energy to heat the bread. This transformation of energy allows the appliances to perform their respective functions.
if you drop a bowling ball, a tennis ball, and a feather from the top of a tall building at the same time which one will hit the ground first?
( in the absence of air resistance)
A. the bowling ball
B. the tennis ball
C.the feather
D.they will all hit the ground at the same time
E.it is not possible to predict
Answer:
If we Drop any object there is gravity acts on it and the air resistance but since, we are given the condition in absence of air resistance
So, we will consider only the gravity and due to gravity all the three bowls bowling ball, a tennis ball, and a feather from the top of a tall building will hit the ground at same time.
Hence, The option D is correct.
Option A,B,C and E are discarded.
Which of the following correctly lists the planets in the Solar System from the smallest to the largest in terms of diameter?
A. Mars, Mercury, Venus, Neptune, Uranus, Saturn, Jupiter, Earth
B. Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter
C. Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, Mercury
D. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Answer:
The answer in B
Explanation:
I did the test and doubled check with my teachers.
What color band markings would be seen on a 2.2 k resistor? A. Black, black, orange B. Orange, red, red C. Red, red, orange D. Red, red, red
TEST HELP PLEASE!! WILL GIVE MEDAL TO BEST ANSWER!!
1 When the air under the envelope is heated, the balloon lifts. Which of the following statements is true.
a. Hot air balloons use radiation to rise
b. Hot air balloons use conduction to rise
c. hot air balloons use convection to rise
d. hot air balloons use air resistance to rise
Is the answer answer C?,
the planet neptune has a mass of 1.02 x 10^26 kg, and earth's mass is 5.97 x 10^24 kg. what is the gravitational force between the planets when they are 4.5 billion kilometers apart?
A: 2.0 x 10^15
B: 2.0 x 10^21
C: 3.0 x 10^25
D: 3.0 x 10^31
The gravitational force between the planets when they are 4.5 billion kilo-meters apart [tex]2.0*10^{21}[/tex] N.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Given in the question the planet Neptune has a mass of 1.02 x 10^26 kg, and earth's mass is 5.97 x 10^24 kg,
Newton's law of universal gravitation force is,
F = G m M/r²
F = [tex]6.67 * 10^{-11} * (1.02*10^{26})*(5.97×10^{24})/4500000000^{2}[/tex]
F = [tex]2.0*10^{21}[/tex]
The gravitational force between the planets when they are 4.5 billion kilo-meters apart [tex]2.0*10^{21}[/tex] N.
To learn more about force refer to the link:
brainly.com/question/13191643
#SPJ6
A 50 kg astronaut ejects 100 g of gas from his propulsion pistol at a velocity of 50 m/s.what is his resulting velocity
Final answer:
Applying the conservation of momentum, the 50 kg astronaut ejecting 100 g of gas at 50 m/s in space will have a resulting velocity of 0.1 m/s in the opposite direction.
Explanation:
To calculate the resulting velocity of the 50 kg astronaut after ejecting 100 g of gas at a velocity of 50 m/s, we apply the principle of conservation of momentum, assuming a frictionless environment such as space. Before ejection, the astronaut and the gas are stationary, so their combined momentum is 0 kg*m/s. After the ejection, the momentum remains 0 kg*m/s, which means that the momentum gained by the astronaut is equal and opposite to the momentum of the ejected gas.
The mass of the ejected gas is 0.1 kg (100 g) and its velocity is 50 m/s, giving it a momentum of 0.1 kg * 50 m/s = 5 kg*m/s. To find the astronaut's velocity (v_astronaut), we use the equation:
Momentum of astronaut = - (Momentum of gas)
50 kg * v_astronaut = - (0.1 kg * 50 m/s)
This simplifies to:
v_astronaut = - (0.1 kg * 50 m/s) / 50 kg
Calculating this gives:
v_astronaut = - (5 kg*m/s) / 50 kg
So, v_astronaut = -0.1 m/s. The negative sign indicates the direction opposite to the ejected gas.
Therefore, the astronaut's resulting velocity is 0.1 m/s in the direction opposite to the direction of the ejected gas.
what voltage produces a 6-A current in a circuit thhat has a total resistance of 3 Ω ?
According to Ohm's law, the voltage that produces a 6A current in a circuit that has a total resistance of 3Ω is 18 Volts.
What is Ohm's law?Ohm's law states that the current passing through a conductor is directly proportional to its voltage. this can be expressed as,
[tex]I=\frac{V}{R}[/tex]
Where R is the ohm's constant called resistance measured in ohms.
Calculating Voltage expressionFrom the law mentioned above, we can write Voltage as,
[tex]V=IR[/tex]
The circuit has 3Ω of resistance and the current flowing through it is 6A. Then the voltage of the circuit is,
[tex]\[\begin{align} & V=6\times 3 \\ & =18 \\ \end{align}\][/tex]V=6×3
=18 volts
Thus, the required voltage for a circuit that has 3Ω of resistance and produces 6A of current to flow through it is 18 Volts.
Learn more about Ohm's law here-
https://brainly.com/question/14296509
#SPJ2
How is power defined?
A.the quantity of work accomplished
B.the direction of the force appled to an object
C.the total distance an object is moved
D.the rate at which work is accomplished
Power can be defined as the rate at which the work has been accomplished in a system. Thus, the correct option is D.
What is Power?The power is the quantity which has only magnitude, that is a scalar quantity. The SI unit of power is watt, and it is also written as J/s or Joules per second.
Power can be defined as the rate at which the work is finished or the energy is transferred from one location to another or energy transformed from one form into another form.
The term energy is the capacity of a body to do work or result in some displacement by the application of some force.
Therefore, the correct option is D.
Learn more about Power here:
https://brainly.com/question/287674
#SPJ6
Describe how a lever can increase the force applied without changing the amount of work being done
A lever increases applied force by offering a mechanical advantage, which redistributes the force over a longer distance but does not change the overall work done, as work is the product of force and distance which remains constant.
A lever can increase the force applied without changing the amount of work being done by reallocating the distance over which the force is applied. The mechanical advantage provided by a lever allows a smaller input force to lift a heavier load. However, as with all machines, the lever does not change the amount of mechanical work done. This means that a lever that increases force will decrease the distance that the load moves, and the product of the force applied and the distance moved (work) remains constant. The mechanical advantage of the lever is the ratio of these forces, and it demonstrates how a simple machine outputs the same amount of work with a reduced effort force by increasing the distance over which the effort force is applied.
In practice, for instance, when we use a crowbar to lift a heavy object, we apply a small force over a larger distance at one end of the lever (the effort arm), and the crowbar applies a larger force over a shorter distance at the other end (the resistance arm) to lift the object. The work done remains the same since it is the product of force and distance.
In the demolition of an old building, a 1,300 kg wrecking ball hits the building at 1.07 m/s2. Calculate the amount of force at which the wrecking ball strikes the building. The wrecking ball strikes the building with a force of N.
Answer:
1391
Explanation:
The equation for density is mass divivded by volume.an increase in denstiy can result from all of following expect??
Which of the following statements best describes what occurs as water boils? A. Thermal energy and temperature are constant. B. Thermal energy is increasing, and temperature is constant. C. Thermal energy and temperature are increasing. D. Thermal energy is constant, and temperature is increasing.
The statement that best describes what occurs as the water boils is Thermal energy is increasing, and temperature is constant, therefore the correct option is B.
What is the boiling point?It is a temperature at which the pressure exerted by the external atmosphere is equal to the vapor pressure of the substance.
The boiling point depends on atmospheric pressure, temperature, bond strength, and vapor pressure of the liquid.
When the water boils by utilizing the latent heat at 100 degrees Celcius, the phase of the water is changing at a constant temperature, the phase change of water from liquid to gaseous state happens because of the increase in the thermal energy required in the form of latent heat.
Thus, The sentence that best sums up what happens when water boils is option B because thermal energy is rising and temperature is staying the same.
Learn more about the boiling point from here
brainly.com/question/25777663
#SPJ1
Final answer:
The correct description of what occurs as water boils is that B.thermal energy increases while temperature remains constant. This is due to the ongoing phase transition from liquid to gas, which requires energy to overcome intermolecular bonds.
Explanation:
The statement that best describes what occurs as water boils is that thermal energy is increasing, and temperature is constant. When water boils, the temperature remains constant at the boiling point because extra energy is used to convert the liquid into gas, thus breaking the intermolecular bonds. This is an example of a phase transition, where the phase change occurs at a fixed temperature, which is a physical property known as the boiling point.
Heat is added continuously, but instead of increasing the temperature, it provides the energy necessary for the phase transition from liquid to gas. During this process, known as boiling, the temperature remains constant at the boiling point while the state of the matter changes. The energy absorbed during boiling contributes to the increase in potential energy of the molecules, facilitating the liquid-to-gas phase transition.
If a 375 mL sample of water was cooled from 37.5 C to 0 C how much heat wad lost in joules
Which statement about conduction is true?
1. Conduction uses electromagnetic waves.
2. Conduction transfers energy from one particle to another
3. Conduction from a fireplace can heat an entire room.
What mass of electrons would be required to just neutralize the charge of 5.0 g of protons? (the mass of a proton is 1.67262×10−24g, and the mass of an electron is 9.1×10−28g.)?
Answer:
[tex]m = 2.72 \times 10^{-3} g[/tex]
Explanation:
total number of protons in 5 gram of total mass is given as
[tex]N = \frac{m}{m_p}[/tex]
here we have
[tex]N = \frac{5}{1.67262 \times 10^{-24}}[/tex]
[tex]N = 2.99 \times 10^{24}[/tex]
now to neutralize the charge we require same amount of negatively charge electrons
so we have
[tex]m = N(m_e)[/tex]
[tex]m = (2.99 \times 10^{24})(9.1 \times 10^{-28})[/tex]
[tex]m = 2.72 \times 10^{-3} g[/tex]
Wendy makes a graphic organizer to help herself apply Ohm’s law to electric circuits.
Which formulas belong in the regions marked X and Y?
X: I = I1 + I2 + I3
Y: Req = R1 + R2 + R3
X: Req = R1 + R2 + R3
Y: I =
X: I = I1 = I2 = I3
Y: V = V1 + V2 + V3
X: I =
Y: V = V1 = V2 = V3
In a series circuit represented by Ohm's law, the correct formulas to use are I = I1 = I2 = I3 for region X and Req = R1 + R2 + R3 for region Y, indicating that current remains constant through components and resistances are additive.
Explanation:Wendy is working with Ohm's law and electric circuits and needs to know which formulas apply to regions marked X and Y in her graphic organizer. Ohm's law describes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit and is given by V = IR. When multiple resistors are present in a circuit, their total or equivalent resistance (Req) and the total current depend on whether they are arranged in series or parallel.
In a series circuit, the total current (I) remains the same through all the components, and the voltages across each component add up. Hence, I = I1 = I2 = I3 which would be the correct formula for region X. For region Y, in a series circuit, the equivalent resistance (Req) is simply the sum of all individual resistances, thus Req = R1 + R2 + R3 is the correct formula.
However, in a parallel circuit, the voltage across all components is the same and the currents through each component add up to the total current, which is represented by I = I1 + I2 + I3, but this does not apply to the original question.
explain why you will not become sick if you eat sodium chloride, even though chlorine is poisonous
Sodium chloride (table salt) is safe to eat in moderate amounts because its chloride ions are chemically bound, unlike toxic chlorine gas.
Sodium chloride, commonly known as table salt, is composed of sodium (Na+) and chloride (Cl-) ions. While chlorine gas (Cl2) can be toxic when inhaled or ingested in large amounts, chloride ions in sodium chloride are chemically bound to sodium ions, forming a stable compound.
When consumed in appropriate quantities, sodium chloride dissociates into its respective ions in the digestive system. Sodium ions play crucial roles in nerve transmission and muscle function, while chloride ions help maintain the body's acid-base balance and regulate fluid levels.
The human body has evolved mechanisms to regulate the intake and excretion of sodium and chloride ions, ensuring proper physiological function. Ingesting moderate amounts of sodium chloride as part of a balanced diet poses no significant health risks and is necessary for maintaining normal bodily functions.
However, excessive consumption of sodium chloride can lead to health issues such as high blood pressure and cardiovascular diseases, emphasizing the importance of moderation in dietary intake.
A girl attaches the end of her jump rope to the trunk of a tree. What evidence exists that the rope is a transverse wave?
Final answer:
The motion of moving the jump rope up and down creates transverse waves where the rope moves perpendicular to the direction of wave propagation. When waves from opposite ends meet, they interfere and superpose, forming various resulting wave patterns.
Explanation:
When a girl attaches the end of her jump rope to the trunk of a tree, evidence that the rope can support a transverse wave is observed by moving the free end of the rope up and down. This motion would cause the rope to move perpendicular to the direction of the wave's travel, which characterizes a transverse wave.
If there were two transverse waves created from opposite ends, with one wave traveling towards the other, one would anticipate seeing a superposition of the two waves when they meet. This interaction, where two waves overlap and combine, is an example of wave interference. The resultant wave pattern can vary depending on the relative phases and amplitudes of the interacting waves, illustrating concepts such as constructive or destructive interference.
A bookcase has a mass of 37 kg. What is the weight of the bookcase?
Answer:
the weight of the bookcase is 363N
@alexrobin13 A 62 kg box is lifted 12 meters off the ground. How much work was done?
A)
5.17 J
B)
72.91 J
C)
744.0 J
D)
7291.2 J