Electrical wiring is commonly composed of metal covered in plastic or rubber coating. Which of these materials is an insulator and which is a conductor?

Motivational novels for students

What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at 7.50 m/s^2? (a) 104N (b) 338 N (c) 441 N (d) 779 N

The temperature in degrees celsius can be converted to degrees celsius

You pull into a gas station and fill up your car with gasoline. During the time you are filling up, the car has A) kinetic energy only. B) potential energy only. C) both potential and kinetic energy. D) neither potential or kinetic energy.

What do you measure with a spring scale? A: distance in inches B: weight in pounds C: mass in grams D: distance in centimeters

You short-circuit a 9 volt battery by connecting a short wire from one end of the battery to the other end. if the current in the short circuit is measured to be 18 amperes, what is the internal resistance of the battery?

A student is trying to calculate the density of a ball. She already knows the mass, but she needs to determine the volume as well. Which of the following formulas can be used to calculate the volume of the ball?

Is there such a thing as real time weather radar? why not?

Luke and Carrie are driving down a straight section of the interstate at 70 mph in Luke's new convertible. Carrie is drinking a soda in the passenger seat.

A force produces power p by doing work w in a time t. what power will be produced by a force that does six times as much work in half as much time?