The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza...
The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, while its angular momentum A) increases B) decreases C) remains constant
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The chef at the infamous Fattening Tower of Pizza tosses a
spinning disk of uncooked pizza...
A chef is tossing 0.500 kg of pizza crust dough. With each toss the dough has...
A chef is tossing 0.500 kg of pizza crust dough. With each toss the dough has an initial angular speed of 5.20 rad/s. During one particular toss, the dough starts out uniformly distributed throughout a 20.0-cm diameter disk and expands to 24.0 cm in diameter. 1) Assuming the mass remains uniformly distributed, what is the angular speed of the dough when the chef catches it?
A flat disk of pizza dough has an initial radius of 5cm and a mass of...
A flat disk of pizza dough has an initial radius of 5cm and a mass of 0.8 kg. It is tossed in the air spinning 3 times per second as it leaves the pizza maker's hands. In the air the disk of dough stretches out and spins only 2 times per second. Following the law of conservation of angular momentum, what is its new radius?
1. An ice skater is spinning about a vertical axis with her arms fully extended. If...
1. An ice skater is spinning about a vertical axis with her arms fully extended. If her arms are pulled in closer to her body, in which of the following ways are the angular momentum and kinetic energy of the skater affected? Angular Momentum- Kinetic Energy A) Increases-Increases B) Increases-Remains constant C) Remains constant- Increases D) Remains constant-Remains constant
A soda bottle cap wobbles when spinning. Assume that the cap is a thin disk of...
A soda bottle cap wobbles when spinning. Assume that the cap is a thin disk of radius R and a mass M attached to a cylinder of height R, radius R, and mass M, as illustrated below R-height-radius Derive the moment of inertia tensor I around the bottle cap's center of mass. As measured relative to its own center of mass, the MOI for a disk around the principal axis perpendicular to the plane of the disk (ê3) is 1/2MR2,...
Question 5. Consider the following four obiects: a hoop, a flat disk,a solid sphere, and a...
Question 5. Consider the following four obiects: a hoop, a flat disk,a solid sphere, and a hollow sphere. Each of the objects has mass M and radius R. The axis of rotation passes through the center of each object, and is perpendicular to the plane of the hoop and the plane of the flat disk. Which of these objects requires the largest torque to give it the same angular acceleration? A) the hoop D) the flat disk B) the hollow...
Help 13.Two spheres of mass M and radius R are both released from rest at the...
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13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
To understand how to use conservation of angular momentum to solve problems involving collisions of rotating bodies. (...
To understand how to use conservation of angular momentum to solve problems involving collisions of rotating bodies. (Figure 1) Consider a turntable to be a circular disk of moment of inertia It rotating at a constant angular velocity ωi around an axis through the center and perpendicular to the plane of the disk (the disk's "primary axis of symmetry"). The axis of the disk is vertical and the disk is supported by frictionless bearings. The motor of the turntable is...
3. A disk 6.0cm in diameter and moment of inertia of 0.015kg-m’ initially at rest at...
3. A disk 6.0cm in diameter and moment of inertia of 0.015kg-m’ initially at rest at t = 0, is spun up to 720-rpm over 6.0s about an axis through its center of mass. Assume the angular acceleration is constant. a) Find the angular velocity (rad/s) at 6.0s b) Find the angular acceleration (rad/s) c) Find the number of revolutions the disk spins through during that interval. d) What is the mass of the disk? e) What is the change...
help 13.Two spheres of mass M and radius R are both released from rest at the...
help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B) The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
While a gymnast is in the air during a leap, which of the following quantities must...
While a gymnast is in the air during a leap, which of the following quantities must remain constant for her? A) Angular momentum about her center of mass B) position C) velocity D) momentum E) angular velocity its NOT E
A flat disk of pizza dough has an initial radius of 5cm and a mass of 0.8 kg. It is tossed in the air spinning 3 times per second as it leaves the pizza maker's hands. In the air the disk of dough stretches out and spins only 2 times per second. Following the law of conservation of angular momentum, what is its new radius?
A soda bottle cap wobbles when spinning. Assume that the cap is a thin disk of radius R and a mass M attached to a cylinder of height R, radius R, and mass M, as illustrated below R-height-radius Derive the moment of inertia tensor I around the bottle cap's center of mass. As measured relative to its own center of mass, the MOI for a disk around the principal axis perpendicular to the plane of the disk (ê3) is 1/2MR2,...
Question 5. Consider the following four obiects: a hoop, a flat disk,a solid sphere, and a hollow sphere. Each of the objects has mass M and radius R. The axis of rotation passes through the center of each object, and is perpendicular to the plane of the hoop and the plane of the flat disk. Which of these objects requires the largest torque to give it the same angular acceleration? A) the hoop D) the flat disk B) the hollow...
Help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
3. A disk 6.0cm in diameter and moment of inertia of 0.015kg-m’ initially at rest at t = 0, is spun up to 720-rpm over 6.0s about an axis through its center of mass. Assume the angular acceleration is constant. a) Find the angular velocity (rad/s) at 6.0s b) Find the angular acceleration (rad/s) c) Find the number of revolutions the disk spins through during that interval. d) What is the mass of the disk? e) What is the change...
help
13.Two spheres of mass M and radius R are both released from rest at the top of a hill and allowed to roll to the bottom. One of the spheres is hollow however, while the other is solid. Which of the spheres reaches the bottom first? A) The hollow one B) The solid one C) They reach the bottom at the same time D) It depends on the angle of inclination. E) It depends on the length of the...
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