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3. Multiple Choice - select the best answer. Two disks each have the same mass, but...
Multiple Choice (select the best answer) (2 pts each 1. Consider a uniform hoop of radius...
Multiple Choice (select the best answer) (2 pts each 1. Consider a uniform hoop of radius R and mass M rolling without slipping. Which is larger, its translational kinetic energy or its rotational kinetic energy? A) Translational kinetic energy is larger B) Rotational kinetic energy is larger. C) Both are equal. D) You need to know the speed of the hoop to tell. 2. A disk and a hoop of the same mass and radius are released at the same...
Two spinning disks have equal masses and the same angular momentum. If disk 1 has half...
Two spinning disks have equal masses and the same angular momentum. If disk 1 has half the radius as disk 2, how does the angular speed of disk 1 compare with that of disk 2? It is twice as much. It is four times as much It is half as much It is 1/4 has much
Two metal disks, one with radius ?1 = 2.50 cm and mass ?1 = 0.800 kg...
Two metal disks, one with radius ?1 = 2.50 cm and mass ?1 = 0.800 kg and the other with radius ?2 = 5.00 cm and mass ?2 = 1.60 kg are welded together and mounted on a frictionless axis through their common center as shown to the right. (a) What is the total moment of inertia of the system of two disks? (b) A light string is wrapped around the edge of the smaller disk and a 1.50 kg...
Constants Two metal disks, one with radius Ri = 2.44 cm and mass M = 0.820...
Constants Two metal disks, one with radius Ri = 2.44 cm and mass M = 0.820 kg and the other with radius R2 = 5.07 cm and mass M2 = 1.66 kg, are welded together and mounted on a frictionless axis through their common center. (Figure 1). Part A What is the total moment of inertia of the two disks? I = 2.38 10-3 kg. m² Submit Previous Answers Correct Part B A light string is wrapped around the edge...
Two metal disks, one with radius R1 = 2.50 cm and mass M1 = 0.800 kg and the other with radius R2 = 5.10 cm and mass M2 = 1.70 kg
Two metal disks, one with radius R1 = 2.50 cm and mass M1 = 0.800 kg and the other with radius R2 = 5.10 cm and mass M2 = 1.70 kg, are welded together and mounted on a frictionless axis through their common center (Figure 1). Part A What is the total moment of inertia of the two disks? Part B A light string is wrapped around the edge of the smaller disk, and a 1.50 kg block is suspended from the free end...
3 pts each la) A solid disk and a hoop have the same mass and radius....
3 pts each la) A solid disk and a hoop have the same mass and radius. If they have the same angular momentum, the angular speed of the disk is than the angular speed of the hoop. a) four times larger b) two times larger c) two times smaller d) four times smaller 1b) An object undergoing simple harmonic motion has a maximum potential energy of 12 J when it reaches its maximum displacement x = A. What the object's...
6. Consider a two dimensional mass distribution in the shape of a thin pizza slice: The mass is uniformly distributed a...
6. Consider a two dimensional mass distribution in the shape of a thin pizza slice: The mass is uniformly distributed and the pizza slice has a radius R and total angle o. Basically you can think of this as a slice of a disk of radius R and angle φ。. a) What is the mass per unit area σ in terms of M, R, and φ? b) Calculate the center of mass of the pizza slice. Check that your answer...
positive direction) Multiple Choice 15% each! 1. A solid uniform sphere of mass 1.85 kg and...
positive direction) Multiple Choice 15% each! 1. A solid uniform sphere of mass 1.85 kg and diameter 45.0 cm spins about an axle through its center. Starting with an angular velocity of 2.40 revisit stops after turning through 18.2 rev with uniform acceleration. The net torque acting on this sphere as it is slowing down is dosest to (A) 0.0466 Nm (B) 0.00593 Nm (C) 0.0620 Nm (D) 0.149 Nm (E) 0.0372 Nm 2. If the torque on an object...
Question 21 Two particles have the same net negative charge, -q. but different masses, m and...
Question 21 Two particles have the same net negative charge, -q. but different masses, m and M. Both particles are initially moving directly toward the right along the x-axis with the same velocity as they enter the uniform electric field. If the larger mass, M, is exactly twice the smaller mass, m (i.e, M 2m), which of the following best describes the motion of the larger mass, M. -q Select the correct answer CHECK ANSWER 2 of 3 attempts used...
Answer each multiple choice question (part a) and then (part b) explain in words why your...
Answer each multiple choice question (part a) and then (part b) explain in words why your answer is correct The length of a wire is doubled and the radius is doubled. By what factor does the resistance change? ) four times as large ()twice as large ()half as large (Jone quarter as large 1a) 1b) 2) The voage acrossa cirut ofa constant resistance is doubled. The power dissiated y that circuit will quadruple)double )decrease by half ()decrease by one-fourth 2b)...
Multiple Choice (select the best answer) (2 pts each 1. Consider a uniform hoop of radius R and mass M rolling without slipping. Which is larger, its translational kinetic energy or its rotational kinetic energy? A) Translational kinetic energy is larger B) Rotational kinetic energy is larger. C) Both are equal. D) You need to know the speed of the hoop to tell. 2. A disk and a hoop of the same mass and radius are released at the same...
Constants Two metal disks, one with radius Ri = 2.44 cm and mass M = 0.820 kg and the other with radius R2 = 5.07 cm and mass M2 = 1.66 kg, are welded together and mounted on a frictionless axis through their common center. (Figure 1). Part A What is the total moment of inertia of the two disks? I = 2.38 10-3 kg. m² Submit Previous Answers Correct Part B A light string is wrapped around the edge...
3 pts each la) A solid disk and a hoop have the same mass and radius. If they have the same angular momentum, the angular speed of the disk is than the angular speed of the hoop. a) four times larger b) two times larger c) two times smaller d) four times smaller 1b) An object undergoing simple harmonic motion has a maximum potential energy of 12 J when it reaches its maximum displacement x = A. What the object's...
6. Consider a two dimensional mass distribution in the shape of a thin pizza slice: The mass is uniformly distributed and the pizza slice has a radius R and total angle o. Basically you can think of this as a slice of a disk of radius R and angle φ。. a) What is the mass per unit area σ in terms of M, R, and φ? b) Calculate the center of mass of the pizza slice. Check that your answer...
positive direction) Multiple Choice 15% each! 1. A solid uniform sphere of mass 1.85 kg and diameter 45.0 cm spins about an axle through its center. Starting with an angular velocity of 2.40 revisit stops after turning through 18.2 rev with uniform acceleration. The net torque acting on this sphere as it is slowing down is dosest to (A) 0.0466 Nm (B) 0.00593 Nm (C) 0.0620 Nm (D) 0.149 Nm (E) 0.0372 Nm 2. If the torque on an object...
Question 21 Two particles have the same net negative charge, -q. but different masses, m and M. Both particles are initially moving directly toward the right along the x-axis with the same velocity as they enter the uniform electric field. If the larger mass, M, is exactly twice the smaller mass, m (i.e, M 2m), which of the following best describes the motion of the larger mass, M. -q Select the correct answer CHECK ANSWER 2 of 3 attempts used...
Answer each multiple choice question (part a) and then (part b) explain in words why your answer is correct The length of a wire is doubled and the radius is doubled. By what factor does the resistance change? ) four times as large ()twice as large ()half as large (Jone quarter as large 1a) 1b) 2) The voage acrossa cirut ofa constant resistance is doubled. The power dissiated y that circuit will quadruple)double )decrease by half ()decrease by one-fourth 2b)...
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