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Calculating tangential speeds of the Earth using angular variables.

The earth has a radius of 6.38 * 10^6 m and turns on its axis once every 23.9h. A) What is the tangential speed (in m/s) of a person living in Ecuador, a country that lies on the equator? B) At what latitude is the tangential speed one-third that of a person living in Ecuador?

Subject:

Physics

Topic:

Other

Posting ID:

5493

OTA ID:

103060

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Calculating the length of tape using angular velocity.

The take up reel of a cassette tape has a radius of 2.5 cm. Find the length of tape that passes around the reel in 7.1 s when the reel rotates at an average angular speed of 1.9 rad/s.

Subject:

Physics

Topic:

Other

Posting ID:

5494

OTA ID:

103060

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Rigid Objects in Equilibrium: Finding the normal force on a the wheel of a car

The mass of an automobile is 1,160 kg, and the distance between its front and rear axles is 2.54 m. The center of gravity of the car is between the front and rear tires, and the horizontal distance between the center of gravity and the front axle is 1.02 m. Find the normal force that the ground applies to: (a) each of the two front wheels and to (b) each of the two rear wheels

Subject:

Physics

Topic:

Other

Posting ID:

5657

OTA ID:

103234

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Rotational Motion

The blades of a ceiling fan have a total moment of inertia of 0.16kg*m^2 and an angular acceleration of 7.0 rad/s^2. What net torque is being applied to the blades?

Subject:

Physics

Topic:

Other

Posting ID:

5658

OTA ID:

102389

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Finding the ratio between two velocities down a ramp.

A marble and a cube are placed at the top of a ramp. Starting from rest at the same height, the marble rolls and the cube slides (no kinetic friction) down the ramp. Find the ratio of the center-of-mass speed of the cube to the center-of-mass speed of the marble at the bottom of the ramp.

Subject:

Physics

Topic:

Other

Posting ID:

5659

OTA ID:

102950

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