What forms of energy does the bent ruler have?

An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 452 Hz when the train is approaching him and 442 Hz when the train is receding from him.

If a substance is emitting radiation very slowly, what can you determine about its half-life. A. it has a long half-life B. it has a short half-life C. it has no half life

A boat sails along the shore. to an observer, the boat appears to move at a speed of 3m/s, and a man on the boat walking foward appears to have a speed of 4.2 m/s how long does it take the man to move 8 m relative to the boat?

A 1100 kgkg safe is 2.4 mm above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compresses it 52 cm. What is the spring constant of the spring?

Which of the following statements are true of solids? Check all that apply. A. The particles are not in a fixed location. B. The particles have less kinetic energy than those of liquids or gases. C.

To lift a car, you use a hydraulic lift filled with a fluid that has density of 1 1200 kg/m3. The radius of one half of the lift is 0.5 meters and the diameter of the other half of the lift is 2.5 meters.

Charlie runs an auto repair and mechanic shop. A hot rod has come in with mass 1500 kg requiring a repair. He needs to raise the car using a hydraulic lift on a piston (Piston A) having a radius of 25 cm.

What does 4_2 helium means

The type of energy transferred by a wave in a medium is energy

With an average acceleration of - 2.4 m/s2, how long will it take a cyclist to bring a bicycle with an initial speed of 13.2 m/s to a complete stop? Answer in units of s.