a 74.9 kg person sits at rest on an icy pond holding a physics book. he throws the physics book west at 8.25 m/s and he recoils at 0.215 m/s what is the mass of the physics book

A person pulls a toboggan for a distance of 37.9 m along the snow with a rope directed 32.8 ° above the snow. the tension in the rope is 105 n.

In a bike race drake drove his bike over the 1500 meter course from start to finish in 50 seconds what was his average speed

Which arrow represents the force of gravity acting upon the car? Which arrow represents the normal force on the car? Which arrow represents the applied force on the car when the driver steps on the gas pedal?

If a roller coaster car had 40,000 J of gravitational potential energy when at rest on the top of a hill how much kinetic energy does it have when it is 3/4 of the way down the hill

Randomization in an experiment means that the experimental units or subjects are selected as a simple random sample from the whole population under study. A. True B. False

How would life on earth be different if earth's axis were not tilted with respect to its orbit? A. There would be no seasons. B. There would be no day and night. C. All places would have the same climate. D. The seasons would be much shorter.

What will a spring scale read for the weight of a 75.0-kg woman in an elevator that moves upward with constant speed of 5.8 m/s?

What's the definition of: • cellular respiration • photosynthesis

What are the steps that are important to take for your safety during an earthquake? a. stay away from walls and windows c. stay away from electrical and gas lines b. get under a desk or table d. all of the above

You have an open air column of length 1.40 m in air at 24.2 °C. What is the frequency of the third harmonic?