A wave has a period of 0.25s. Calculate its frequency.

1. An airplane flies 800 kilometers east from Denver to Wichita in one hour. Then the plane flies west back to Denver in the same amount of time. Which of the following best relates the speed and velocity of the two flights? A.

Carmen and Judi dock a canoe. 80.0-kg Carmen moves forward at 4.0 m/s as she leaves the canoe. At what speed and in what direction do the canoe and Judi move if their combined mass is 115 kg.

The majority of the nitrogen on earth can be found in which reservoirs?

Pluto's orbit is more eccentric than any of the major planets. What does that mean?

What is the angular velocity of the second hand on a clock? (Hint: It takes the second hand 60 seconds to rotate 2π radians. Divide the number of radians by the number of seconds so that your answer has units of radians/second.)

Select the statement that best describes gravity. Gravity is the force that draws objects closer to the Earth because of the positive or negative charge.

A cylindrical metal rod is 2.40 m long and 5.99 mm in diameter. The resistance between its two ends (at 20oC) is 1.38 * 10-3 Ω. (a) What is the material? (b) A round disk, 2.24 cm in diameter and 1.20 mm thick, is formed of the same material.

Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does that mean that the acceleration of car A is greater than that of car B? Explain.

A motorist enters a freeway at 45 km/h and accelerates uniformly to 99 km/h. From the odometer in the car, the motorist knows that she traveled 0.2 km while accelerating.

What is the Coriolis Force?