The velocity of a wave is

a. its direction and speed.

b. the distance between two wave crests.

c. the time required for a wave to move one wavelength.

d. half the vertical distance between a crest and a trough divided by the frequency.

In and Atom what particles are not in the nucleus

Sallys physical education teacher timed her run and recorded the time and distance in the table below. What is her average speed? Time (s) : 1, 2, 3, 4, 5 Distance (m) : 2, 5, 7, 10, 12 A) 3 m/s B) 2.5 m/s C) 2 m/s D) 4 m/s

Kate is working on a project in her tech education class. She plans to assemble a fan motor. Which form of energy does the motor convert most of its electric energy into? A. light energy B. motion energy C. sound energy D. thermal energy

What type of plant boundary is associated with the formation of an ocean boundaries?

Estimate the power you produce in running up a flight of stairs. Give your answer in horsepower (1 hp = 746 W). Suppose you climb one flight of stairs (3 m) in 10 seconds (you run up the stairs quickly). Estimate your mass to be 81 kg.

An example of renewable energy resource is ... A - uranium B - Wind C - natural gas

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.