A satellite travels at a constant speed in a circular orbit. The acceleration of the satellite is w) zero x) toward the center of the orbit y) away from the center of the orbit z) at a tangent to the orbit

A satellite travels at a constant speed in a circular orbit. The acceleration of the satellite is w) zero x) toward the center of the orbit y) away from the center of the orbit z) at a tangent to the orbit
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ANSWER: X -- TOWARD THE CENTER OF THE ORBIT
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Consider a car driving around a circular bend in the road. Which of the following CANNOT be constant? w) velocity of car x) speed of car y) nonrelativistic mass of car z) angular momentum of the car about the center of the circle

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Description : A satellite is observed to move in a circle about the earth at a constant speed. This means that the force acting upon it is: w) zero x) parallel to the direction of the satellite ... velocity y) perpendicular to the direction of the satellite's instantaneous velocity z) none of the above

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Last Answer : ANSWER: X -- PROPORTIONAL TO ITS DISPLACEMENT FROM ITS EQUILIBRIUM POSITION 

A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is: w) half the velocity of the first satellite x) the same as the velocity of the first satellite y) twice the velocity of the first satellite z) four times the velocity of the first satellite

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A train locomotive whose mass is 1 x 106 kilograms is traveling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomotive. How much work is the wind doing on the locomotive for each 10 meters it travels? w) 0 joules x) 1,000 joules y) 10,000 joules z) 100,000 joules

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A satellite orbits the earth 200 km above the surface. What speed, in m/s, is necessary for a circular orbit? The radius of the earth is 6400 km and g = 9.2 m/s2 a.7200 b.6600 c.7800 d.6000 e.107 dynes

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Last Answer : ANSWER: W -- CONSTANT

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An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. If the acceleration due to gravity is 10 meters per second squared, the potential energy of the object relative to the surface of the earth is: w) 10 joules x) 20 joules y) 100 joules z) 250 joules e) none of the above

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The acceleration due to gravity on the moon is 1.6 meters per second squared. If a pendulum is whose length is 6.4 meters is placed on the moon, its period will be: w) 1.57 seconds x) 3.14 seconds y) 12.56 seconds z) 25.12 seconds

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Last Answer : not real

Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

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Last Answer : ANSWER: W -- 2 METERS PER SECOND SQUARED

In physics, a radian per second squared is a unit of: w) angular displacement x) angular velocity y) angular acceleration z) angular momentum.

Description : In physics, a radian per second squared is a unit of: w) angular displacement x) angular velocity y) angular acceleration z) angular momentum.

Last Answer : ANSWER: Y -- ANGULAR ACCELERATION