Use the problem-solving method to solve the following. Show all steps and all work. Include units of measurement. 21. The gravitational pull of Earth on Moon is 2.0 x 1020 N. The gravitational constant of the universe, G, is 6.67 x 10-11 m3/kg *s2. The mass of the earth is 5.98 x 1024 kg. The distance between the earth and the moon is 3.84 x 108 m. Calculate the mass of the moon.

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

What are two different ways you could find the value of a? explain these methods.

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?