Which has greater speed, a heron that travels 600 m in 60 seconds or a duck that travels 60 m in 5 seconds? explain

A box, compressing a spring by 4 m, is loaded and ready. Moments later the 8.0 kg box has been launched with a speed of 10.0 m/s across a frictionless surface. Find the spring constant of the spring used at the beginning of the problem.

Streams of electrically charged particles flowing at high speeds from the sun make up the

What is the momentum of a 15 g bullet moving with a velocity of 35,000 m/s to the right

Weight is related to mass but they are not the same. What is weight defined? A) it is a measure of the pull of gravity toward the center of an object or planet B) it is the amount of matter in an object

Benjamin Franklin has convinced his hapless assistant Mike Piepan to participate in an experiment on electiricty. Ben has set up lightning rod, the rod of which extends into his laboratory. MIke is suspended from the ceiling by an insulating rope.

Why does the percentage of water vapor vary?

A situation that restricts something

Why is the sky blue all the time

Where did the rotational kinetic energy of the earth come from?

What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is 29988 J?