Which of the following creates a longitudinal wave?

A. striking a gong

B. turning on a flashlight

C. shaking a rope up and down

D. dropping a stone into a pond

Which of the planets do not have moons?

In any good experiment, the scientist needs to (fill in the blank) the hypothesis.

Light from the sun travels through space to earths atmosphere. Which will light waves do when they move from empty space into matter made up of different gases?

If the molecules in the desk in front of you are moving, then why is the desk standing still?

A pumkin is dropped, after 5 seconds, its velocity is 47 m/s. What is its acceleration? (formula for acceleration:

When you are ice skating, to get started, you push your skate backwards on the ice and, as a result, begin to move forward. Which law of motion is being described in this scenario?

A small car collides with a large truck. Is the magnitude of the force experienced by the car greater than, less than, or equal to the magnitude of the force experienced by the truck? a. less than b. equal to c. greater than

As an airplane is taking off at an airport its position is closely monitored by radar. The following three positions are measured with their corresponding times: x1 = 241.22 m at t1 = 3.70 s, x2 = 297.60 m at t2 = 4.20 s, x3 = 360.23 m at t3 = 4.

A stunt car with a mass of 1000 kg crashes into a tree on a movie set during the collision acceleration of the car with 3 m what was the force of impact of the collision on the car

A circuit with a current of 400 amp has several lights that have a total resistance equal to 30 ohms. Find the voltage.