Becky has a shower and uses 20,000g of water with a specific heat capacity of 4200J/KG. When the water is supplied with 336,000J of energy, it heats up to 50^c. What is the startig temperature of the water?

Which of the following materials has the lowest resistance copper wood plastic

An object dropped will hit the ground before an object that is thrown horizontally. true or false?

which statement best describes an asteroid? A. large chunks of rock with many craters that orbit the sun. B. Pieces of rock or dust that shine or flicker in the earth's atmosphere. C. An object made of ice, gas, and dust that orbits the earth. D.

Byron wanted to try out different watercraft. He went 124 miles downstream in a motorboat and 45 miles downstream on a jet ski. His speed on the jet ski was 10 mph faster than in the motorboat. Byron spent a total of 4 hours on the water.

Suppose the force of the air drag on an object is proportional to the speed of the object and in the direction opposite the object's velocity. if you throw an object upward, the magnitude of its acceleration is greatest

Which car has the most kinetic energy? A car of mass 1500 kg with speed 5 m/s or A car of mass 1300 kg with speed 3 m/s or a car of mass 1200 kg with speed 2 m/s or a car mass 1400 kg with speed 4 m/s

A 500 kg table with 4 legs rests on solid flat ground. I place 3 books on the center of the table with masses of 10 kg, 20 kg and 30 kg respectively. What is the normal force between the ground and one leg of the table?

Fluorine-21 has a half-life of approximately 5 seconds. What percentage of the original nuclei would remain after 20 seconds

Which of these is an example of a totalitarian regime A.) Canada under prime minister Trudeau's rule B.) the Soviet Union under Josef lo

Since 1 pound = 4.45 newton, what is your earth weight in newtons?