You use a pulley system to lift a fallen tree. You apply a force of 50 N and the pulley pulls on the tree with a force of 1300 N what is the mechanical advantage of the pulley?

What term is used for the controlling of the color temperature of light that the camera will capture?

If the angular momentum of an object increases, which of these could be true? A. the angular velocity of the object decreased. B. The mass of the object decreased. C. The momentum of inertia increased. D. The object's momentum of inertia decreased.

What are the disadvantages of fiber optics over copper wire?

Which of the following is considered a naturally occurring behavior that does not have to be learned conditioned response reconditioned stimulus unconditioned response neutral stimulus

In a single-slit diffraction experiment, the width of the slit through which light passes is increased. What happens to the width of the central bright fringe?

What is the thermometer

In which natural cycle must an important gas in Earth's atmosphere be fixed before plants can use it? a. sulfur cycle b. carbon cycle c. nitrogen cycle d. oxygen cycle

Convection only occurs in what? a. gases b. fluids c. liquids d. solids

Which philosopher called all people the "sovering" meaning all power should rest with them?

M = 10 Kg r = 0,5 m v=2m/s