Why does the total amount of energy before and after

any energy transformations remain the same?

The strength of a blank is epual to the force on a positivectest charge divided by strength of a rest charge

To create a rainbow, is sunlight bouncing off the outside of a raindrop or the inside of raindrop?

Suppose you wind a wire with a current into a coil. How have you changed the wire's magnetic field?

A 500g ball moves in a vertical circle on a 102cm long string. If the speed at the top is 4.0m/s, then the speed at the bottom will be 7.5m/s.

What is the difference between clastic and bioclast?

How much work is done by 0.30 m of gas if its pressure increases by 8.0 x105 Pa and the volume remains constant Salerno

There are 152 steps between the ground floor and the sixth floor in a building. Each step is 16.2 cm tall. It takes 3 minutes and 35 seconds for a person with a mass of 59.5 kg to walk all the way up. How much work did the person do?

A rock is dropped from the surface into a pit. It hits the bottom of the pit in 5.0 seconds. A second rock is then dropped into a second pit, where it hits the bottom in 10 seconds.

A group of humans traveling in space discover a habitable planet. They settle down there and start populating it. Their population grows at a steady rate and doubles every 10 years.

A bird can fly 25 km/h how long does it take to fly 3.5km