Which of the following best explains why electrical wires are usually covered with plastic or rubber

A man travles at an average velocity of 12 m/s for 4 seconds. what is the total distance travled by the man?

Which of these changes does a submarine encounter as it returns from the bottom of the ocean to the surface of the ocean? a. the amount of sunlight increases. b. the water temperature decreases. c. the amount of plants decreases. d.

You are standing on a concrete slab that in turn is resting on a frozen lake. Assume there is no friction between the slab and the ice. The slab has a weight five times your weight. If you begin walking forward at 2.

An object is moving in a circle. If the radius of the object is doubled, and the period remains constant, the magnitude of the velocity will be ___ original value.

Calculate the speed of a wave on a guitar string which has a mass of 55 g and a length of 30 cm if the tension in the string is 200 N

The transfer of energy between two objects by electromagnetic waves is called

What is the unit of k (spring constant) in SI system?

The teacher prepares 2.50 liters (L) of a salt solution for a class experiment. How many quarts (qt) are in 2.50 L? (1 quart = 0.943 liters)

What is a scavenger give some examples

What is a mealworm a worm, an insect or an amphibian