A 70 kg man is walking at a speed of 2 m/s. What is his Kinetic Energy?

A beam of light is incident from air on the surface of aliquid. If the angle of incidence is 40.0° and the angle ofrefraction is 31.0°, find the critical angle for the liquidwhen surrounded by air.

Describe the four fundamental forces in nature. Rate them in order from greatest force to least force

A humanoid skeleton is found buried in the ashes of a volcano that erupted between 10,000 and 12,000 years ago. when scientists use absolute dating techniques to obtain an age of the fossil, approximately how much carbon-14 isotope will remain?

If you are transported to a planet that has the same mass as Earth, but is larger in size, how would this affect your weight when standing on the planet's surface? Explain your answer.

Which of these statements best describes the relationship between matter, pure substances, and mixtures?

Who discovered black hole radiation?

You catch, tag, and release 50 fish back into a pond. Then, you catch 25 more fish, 5 of which are tagged. What is the best estimate of the number of fish in the pond? A. 100 fish B. 250 fish C. 400 fish D. 625 fish

Which statement correctly describes the differences between positive and negative acceleration? Positive acceleration describes a change in speed; negative acceleration describes no change in speed.

The light-producing element in a fluorescent bulb is the

an object travels in circular motion with a speed of 11.40 m/s. What is the centripetal acceleration if the radius of the circle is 5.52 m?