easy physical math
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8 question
A 8.3 kg chair is pushed across a frictionless floor with a force of
42 N that is applied at an angle of 22° downward from the horizontal.
What is the magnitude of the acceleration of the chair?
A 0.50 kg cream pie strikes a circus clown in the face at a speed of
5.00 m/s and stops. What is the change in kinetic energy of the pie?
How high above the ground does a 7.00 kg bird possess 7300 J of
gravitational potential energy?
What is the velocity of a 10 kg puppy that has 1.3 kg·m/s of momentum?
A bicycle rider pedals around a circular track at 5.1 m/s. The track’s
radius is 51 m. What is the period of the bicyclist’s motion?
A daredevil bike rider speeds around a circular track. The bike and
rider together have the mass shown. What is the magnitude of the
centripetal force acting on them?
What is the gravitational force between planet M and its moon, m?
Enter your answer in scientific notation using e for ×10. For
instance, use 2.0e4 for 2.0×104
What is the speed of a communications satellite orbiting the Moon at
an altitude of 260.0 km above the Moon’s surface? The mass of the moon is 7.35×1022 kg and the radius is 1.74×106 m.
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