Which of the following has the most momentum?

an ant moving at 1 m/s

a bird flying at 4 m/s

a cat moving at 13 m/s

you riding your bike at 12 m/s

A ball is dropped from the top of a building. When does the ball have the most kinetic energy?

How much pressure is concrete pillar on the base when the concrete pile mass is 2.3 tones and the contact area is 2500

Which describes the correct energy conversion when a solar cell is used to light a street lamp? solar to light solar to light and heat solar to electric to light and heat heat to electric to light

Which statement best explains why machines are inefficient? a. energy transfer in compound machines gives off electrical waste. b. during energy transfer in machines, some energy is always lost as heat. c.

What is the word used to describe the approach that considers how the different aspects of health influence each other? tach files

An aircraft is in a steady level turn at a flight speed of 200 ft/s and a turn rate about the local vertical of 5 deg/s. Thrust frm the engine is along the flight direction.

Sally travels by car from one city to another. She drives for 30.0 min at 80.0 km/hr, 12.0 min at 105.0 km/hr, and 45.0 min at 40.0 km/hr, and she spends 15.0 min eating lunch and buying gas. A. Determine the average speed for the trip. B.

Does parallax affect the precision of a measurement that you make

If a semi-truck decreases its speed from 10 m/s to 5 m/s, its new kinetic energy is:

A force of attraction/repulsion due to the spin of electrons