A 500g object falls off a cliff and losers 100 J from its gravitational potential energy store. if the gravitational field strength g=9.8N/kg, how high is the cliff?

Which of the following actions will keep the gravitational force between two objects unchanged A-decreasing the mass of the objects.

Why surface tension of water is greater than methylated spirit?

What is the full form of work?

When you drive from the city to a distant farm, the temperature gets because of the?

Defend the idea that curiosity, skepticism, and openness to new ideas are important in science.

What is the difference between speed and velocity and give an example.

Water flows over a section of niagara falls at the rate of 1.2x10^6 and falls 50.0 m. how much power is generated by the falling water

What is the darkest side of the moon called?

Brian is a healthy young man. He has been training with his teammates for a 50-yard dash for months. However, even with practice, he cannot run fast enough to qualify. What is the most likely reason that Brian can't qualify?

1. Are BEVs or hydrogen fuel cell vehicles a more promising transportation technology for the future? 2. Should car companies be required to produce electric cars?