Which of the following is the best definition for power?

a. force per joule

b. time per unit of force

c. work per unit of time

d. work per unit of force

Which is not an area where the maritime tropical air masses that affect north america originate?

If the heat source were replaced by a block of ice would the cold be transferred through the material the same way?

From just the atomic number, what else is known? a) the chemical number b) the number of neutrons c) the atomic mass d) the number of protons

Why do the stars appear to rotate around Polaris?

A body of mass 2kg moves round a circle of radius 5m with a constant speed of 10m/s. Calculate the force toward the centre of the circle

What experimental term is it when a ruler is dropped to the floor?

Where is most of the energy from incoming waves focused? A. spit B. headland C. underwater D. barrier beach

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?

How Long will it take a plane flying north from Miami to reach New York City 1800 km away if the average velocity of the plane is 940 km/h