If a device uses 280 watts of power a day, about how many kilowatt-hours will it use in 30 days?

A. 6.700 kilowatt-hours

B. 200 kilowatt-hours

C. 8.4 kilowatt-hours

D. 6.7 kilowatt-hours

Choose the scientific question. A. How common is water in rocks on the Moon? B. Who was the first person to walk on the Moon? C. What have people traditionally believed about the Moon? D.

If this 1300 kg car is driven at 27 m/s through the bottom of a circular dip in the road that has a radius of 600 m, by how much do these springs compress compared to when the car is driven on a flat road

Choose the steps below in the appropriate order to explain why the sky is blue. a. White light interacts with molecules in the atmosphere. b. White light with all colors is emitted by the sun. c.

An automobile travelling on a straight, level road has an initial speed v when the brakes are applied. In coming to rest with a constant acceleration, it travels a distance x.

A beam of white light enters a prism of crown glass (n = 1.5) from air (n = 1.00). Once inside, the colors in the light disperse. The white light enters at an angle of 51 degrees. The blue light inside refracts at 19.5 degrees once inside the glass.

Which term identifies the dark smooth areas on the surface of the moon? craters terrae maria regolith

1. work is a transfer of 2. a small 20-killogram canoe is floating downriver at a speed of 2 m/s. what is the caanoes kinetic energy?

If you are asked to determine an objects speed, what information must you have? A: distance and period of time B: distance and direction C: period of time and direction D: distance and change in position

What is the kinetic energy of a 1150 kg sports car traveling down the road with a speed of 29 m/s?

3. A 2,000-kilogram railroad car moving at 5 m/sec to the east collides with a 6,000-kilogram railroad car moving at 3 m/sec to the west. If the cars couple together, what is their velocity after the collision?