In the United States, when we use this non-renewable resource to generate power, the environment is harmed.

coal

natural gas

petroleum

nuclear

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.

A 58 kg woman and a 70 kg man stand 18.0 m apart on frictionless ice. (a) how far from the man is their center of mass (cm) ? 8.15625 correct: your answer is correct.

The sky, which was bright blue, is now dark. you look up expecting to see a halo of light in the sky. what just occurred? (A. an aurora (B. a solar eclipse (C. a solar black out (D. a lunar eclipse

What is the mass of an object that weighs 500 newtons on earth? a. 0 kg b. 51 kg c. 512 kg d. 4900 kg

A 10 kg object has 500 joules of kinetic energy because of its speed. How fast is the object traveling?

What is impossible for a machine to do? A) do a greater amount of work than the amount of work done on the machine B) apply a force in a direction that is different than the direction of the force applied to the machine C) move an object a greater

The phosphorus cycle keeps phosphorus availability naturally low. True or false?

Which best describes nuclear fission? A. A nucleus spontaneously splits and absorbs energy. B. Two nuclei spontaneously combine and absorb energy. C. A nucleus collides with a neutron and splits, releasing energy. D.

Which of the following is an example of conduction? A. A metal spoon becomes warm when placed in a cup of hot tea. B. Campers warm up while sitting by a campfire. C. A dog's bowl of water warms up out in the Sun. D.

Hink about the friction activity. Return to this activity to see it again if you need to. Explain what happened in each of the two demonstrations, and then compare them. Use the terms resistance, vacuum, gravity, velocity, and friction.