Earthquakes occur due to. Question 5 options:

Movement of the mole people mining deep in the earth’s crust

The magnetic pull of the sun on the earth

Movement at tectonic plates boundaries

Shifting of the ocean current

If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?

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

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg