500 J of work are done in 4 seconds to lift a 40 kg box to the top of a high shelf. How much power was required to complete the lift?

Which of the following materials is not a fluid A. Air B. Cork C. Gasoline D. Water

Explain the process by which cell phones transmit data using energy and waves

Thalia is drafting a plan to move a large, perfect sphere concrete sculpture that is in front of her office building. Describe the considerations Thalia would need to make if she was drafting a plan to move the sculpture.

Atoms are mostly made up of what

If one newton of force accelerates a block at 1 m/s2. Predict what the acceleration would be if we applied twice the force to a very light container with 4 blocks in it? A) 0.5 m/s2 B) 1.0 m/s2 C) 4.0 m/s2 D) 8.0 m/s2

A measure of the energy of motion of the particles in a substance is its

What is the final velocity of the combined bumper cars A 225 kg red bumper car is moving at 3.0 m/s. It hits a stationary 180 kg blue bumper car. The red and blue bumper cars combine and hit a stationary green bumper car of mass 150 kg.

0.4-L glass of water at 20°C is to be cooled with ice to 5°C. The density of water is 1 kg/L, and the specific heat of water at room temperature is c = 4.18 kJ/kg·°C. The specific heat of ice at about 0°C is c = 2.11 kJ/kg·°C.

Regions in a sound wave where particles are farthest apart are called

What will happen to thermal condictivity of a substance if its thickness is doubled? Also give reason.