What kind of energy transformation occurs when the skaters board falls back to the ramp

What is all the mediums that light can travel through

A 100-cm3 container has 4 g of ideal gas in it at 250 kPa. If the volume is changed to 50 cm3 and the temperature remains constant, what is its new density? 80 kg/m3 250 kg/m3 400 kg/m3 50 kg/m3

A 50 kg student climbs 3m to the top of a set of stairs. Calculate the change in the student's gravitational potential energy from the bottom to the top of the stairs.

Resistance = 0.1 ohm Current = 60 amps Voltage = ? 0.6 6 60 600

How might the velocity (speed) of wind or water affect the deposition of sediments?

Two sailboats leave a harbor in the bahamas at the same time. the first sails at 23 mph in a direction 330°. the second sails at 34 mph in a direction 190°.

What conclusion can be drawn from the statement that an element has high electron affinity, high electronegativity, and a high ionization energy? A) The element is most likely from Group 1A or 2A and in period 1 or 2.

When a cyclist rides past you on the street, this is an example of

Why are galaxies visible

I hockey puck slides across an ice rink more easily than it does across a rough concrete surface why is this