A rock with a mass of 2.9 kg falls 5.5 m. What potential energy does it have before the fall?

Calculate the missing angles in the following diagram if the index of refraction is 1.00 outside the triangular block and 2.42 inside the block. 34° angle of incident 17 angle leaving - - -

A rigid tank contains water at 200kPa and an unknown temperature. When the tank is 100 °C the vapour starts condensing. Calculate the initial temperature of the water. Show the process on T-v diagram.

Which of these is an example of a mechanical wave? Ocean waves Microwaves used to heat food X-ray Light from a flashlight

A device for acclimating military pilots to the high accelerations they must experience consists of a horizontal beam that rotates horizontally about one end while the pilot is seated at the other end. In order to achieve a radial acceleration of 27.

Do cars get better gas mileage with clean air filters? Gas mileage for 10 cars with dirty air filters and clean air filters was studied.

How do evaporation and condensation relate to heat

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

The velocity of a roller coaster as it moves down a hill is where v0 is the initial velocity and h is the vertical drop in feet. An engineer wants a new coaster to have a velocity of 90 feet per second when it reaches the bottom of the hill.

What are sun spots?

Identify characteristics of objective personality tests. -self-report -scientific -paper-and-pencil -questions about behavior -objective -potentially biased answers Multiple Choice-Psychology