Calculate final temperature of 50 g of water heated with 20000 J. The heat capacity of water is 4190 J / kg / ºC.

What could be a reason for a planet to take a longer time to make revolution around its star?

What does an insulator do?

What would most likely occur if a plague killed most of the prey organisms within a once healthy ecosystem

What is needed to create a magnetic field?

lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

A ball rolls down a ramp. The ball has a mass of 1 kg and it has 18 joules of kinetic energy. What is the ball's speed?

Scientists now think high-fructose corn syrup may disrupt appetite control, making people more often o sleep get angry Ceat fast

What are the strengths and limitations of the doppler method?

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.