A coin slides over a frictionless plane and across an xy coordinate system from origin to a point with coordinates (x, y) while a constant force F act on it directed at a counterclockwise angle o from the positive direction of the x-axis. How much work is done by the force on the coin during the displacement?

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g