Batsheva sits on a spinning stool with her arms folded. What happens to her angular velocity...

Batsheva sits on a spinning stool with her arms folded. What happens to her angular velocity if she

does not move her body and the stool spins without friction
Eden and Ohad have the same mass. Eden sits at his desk in Rhode Island and Ohad sits at his desk in

Ecuador (near the Equator). Who has more kinetic energy due to Earth’s rotation, Eden or Ohad, or is

is the same
A space probe is launched from Earth and sent on a trip to the Moon, following a straight-line path.

Is there a point along the way where the net gravitational force on the probe due to the Earth and

Moon is zero, and if so is that point closer to the Earth or the Moon
Menachem Mendel and Moshe are the same weight and we wear identical shoes. When they both keep their feet on the ground, Menachem Mendel can lean forward farther than Moshe before falling. All other things being equal whose center of gravity is closer to the ground when both are standing straight

Expert Solution

genius_generous answered 2 years ago

What happens when a spinning ice skater draws in her outstretched arms? (a) her angular momentum...

What happens when a spinning ice skater draws in her outstretched arms? (a) her angular momentum decreases (b) her angular momentum increases (c) her rotational speed decreases (d) her rotational speed increases

[15 pts] A figure skater is spinning in place with her arms outstretched at an angular...

[15 pts] A figure skater is spinning in place with her arms outstretched at an angular speed of 18.0 rad/s. She then raises her arms straight up to increase her angular speed. Her body has a mass of 58.0 kg and can be treated as a solid cylinder with a diameter of 36.0 cm, while each arm has a mass of 3.5 kg and can be treated as a thin rod of length 0.425 m when outstretched, and a hollow...

A: What is the angular momentum of a figure skater spinning at 3.4 rev/s with arms...

A: What is the angular momentum of a figure skater spinning at 3.4 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.4 m , a radius of 15 cm , and a mass of 48 kg ? **Express your answer using three significant figures and include the appropriate units B: How much torque is required to slow her to a stop in 4.5 s , assuming she does not...

A student sits on a rotating stool holding two 2.2-kg objects. When his arms are extended...

A student sits on a rotating stool holding two 2.2-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg · m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.46 m from the rotation axis. (a) Find the new angular speed of the...

A figure skater presses off the ice to begin spinning with her arms close to her...

A figure skater presses off the ice to begin spinning with her arms close to her body. After completing 2 turns in 0.8 seconds she moves her arms further away from her body, what will her new angular velocity be? a. <16.6 rad/s B. 18 rad/s C. 20 rad/s D. 24 rad/s

What is the significance of the slope of an angular velocity (y) versus linear velocity (x)...

What is the significance of the slope of an angular velocity (y) versus linear velocity (x) graph?

Explain in your own words what happens to improperly folded proteins in the ER. How does...

Explain in your own words what happens to improperly folded proteins in the ER. How does the cell respond when there is a couple of misfolded proteins in the ER? What happens when there are many misfolded proteins in the ER and its protein-folding capacity is exceeded? Explain in your own words using what you learned in class.

What happens if you taser a nail in your face? A man sits seated in a...

What happens if you taser a nail in your face? A man sits seated in a chair and inserts a metal nail into his sinus cavity. He then proceeds to tase the nail in his face.The taser sparks and the man remains unphased. How is this possible? Is there a way to modify a taser so the shock is less severe or so the current does not pass through the man's body at all? Is this modification necessary?

what is centripetal acceleration please explain this concept discuss the formulas that connect angular velocity to...

what is centripetal acceleration please explain this concept discuss the formulas that connect angular velocity to angular acceleration give equations that involve centripetal acceleration and explain them

In simple harmonic motion, what happens to the velocity as the acceleration is maximum and vice...

In simple harmonic motion, what happens to the velocity as the acceleration is maximum and vice versa what happens to the acceleration as velocity is maximum. Explain in details on how you arrive at your conclusion.

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