Which of the following would be the best insulator? air aluminum copper silver

Does the speed of a wave depend only upon the medium through which it moves

Which of the following measurement systems originated by a government decree around 1790? Greek Roman English metric

What is the definition for physics?

True or False. Electromagnetic waves are classified as longitudinal waves. Question 1 options: True False

If the electrical field in some region or space is zero, does that imply that there is no electrical charge in that region?

You slide a box of books at constant speed up a 30° ramp, applying a force of 200 n directed up the slope. the coefficient of sliding friction is 0.18.

Two trains leave the same station at the same time. The first train travels north at 60 mph. The second train travels west at 45 mph. Find how fast the distance between the trains is changing two hours after the trains have left.

If the room radius is 4.5 m, and the rotation frequency is 0.8 revolutions per second when the floor drops out, what is the minimum coefficient of static friction so that the people will not slip down?

Energy of motion is known as what energy

While a constant total force of 17 n is exerted on a cart, the cart's acceleration is 5 m/s2. find the mass of the cart?