The moon has a weaker gravitational force than earth. Sofia weighs 50 lbs. on earth. How much will she weigh on the moon? exactly 50 lbs. less then 50 lbs. more than 50 lbs.

A car traveling in a straight line has a velocity of + 5.0 m/s. After an acceleration of 0.75 m/s², the carâs velocity is + 8.0 m/s. In what time interval did the acceleration occur?

José is pinned against the walls of the Rotor, a ride with a radius of 3.00 meters that spins so fast that the floor can be removed without the riders falling. When the ride accelerates to a speed of 17.0 m/s, his angular momentum is 3570 kg m2/s.

How long (distance and time) would it take a vehicle to accelerate from a stop to 203 mph with an average acceleration of 2.93ft/s²

The two blocks a and b have a mass of 5 kg and 10 kg, respectively. if the pulley can be treated as a disk of mass 3 kg and radius 0.15 m, determine the acceleration of block a. neglect the mass of the cord and any slipping on the pulley.

IF there are 10.0 g of source and 8.0 g of oxygen, how many moles of sucrose are available for this reaction

A father racing his son has 1/3 the kinetic energy of the son, who has 1/2 the mass of the father. The father speeds up by 1.4 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son

A 2 kg book is pushed across a table is a force 4. Assuming no friction, what is the acceleration of the book?

When electricians use wiring for houses they use both copper and rubber. Which do you think is used as a conductor?

Suppose that 600 W of radiation in a microwave oven is absorbed by 250 g of water in a very lightweight cup. Approximately how long will it take to heat the water from 20 C to 80 C? (A) 50 s (B) 100 s (C) 150 s (D) 200 s

Calculate the velocity of a 1650kg satellite that is in a circular orbit of 4.2 x 10^6m above the surface of a planet which has a radius 3.95 x 10^5 m and the period of the orbit is 2.0 hours.