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

They are called short-period comets. Short-period comets are thought to originate in the Kuiper Belt, which is a belt of icy objects just beyond the orbit of the planet

When a force causes an object to move in the direction of the force blank occurs

What dertermines if a chemical reaction releases heat

A puck of mass m = 0.085 kg is moving in a circle on a horizontal frictionless surface. It is held in its path by a massless string of length L = 0.72 m. The puck makes one revolution every t = 0.45 s.

4. Next discuss how Dr. Knappe used technology to measure how fast the tectonic plates are moving apart. What devices did she use?

Which statement best describes the movement of particles when a wave travels through a medium? The particles are

What is the acceleration of all objects due to gravity? What does this mean?

Which is the correct formula for cellular respiration? a. 6 CO2 + 6 H2O + light energy → C6H12O6 + 6 O2 b. CO2 + H2O → C6H12O6 + O2 c. C6H12O6 + O2 → CO2 + H2O d. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + ATP energy

A tree is standing in the middle of a meadow. As you watch, the wind begins to blow and the tree bends. Which statement best explains how you could tell that a net force was acting on the tree? OA) The tree had momentum.

Consider two cars, a 700kg Porsche and a 600kg Honda Civic. The Porsche is speeding along at 40 m/s (mph) and the Civic is going half the speed at 20 m/s.