When you pull on the pulley with a force of 120 n, the pulley applies a force of 800 n to the boxes. what is the mechanical advantage of the pulley?

based on the changes taken place in rectangular glass slab reflection answer the following question a) light ray travels from rarer to denser medium. b) light ray travels from denser to rarer medium.

The first "lunar olympics" is to be held on the Moon inside a huge dome. Of the usual Olympic events-track and field, swimming, gymnastics, and so on - which would be drastically affected by the Moon's lower gravity? (Select all that apply.

What would we need to know to calculate both work and power? a. energy, force, and time b. force, distance, and time c. force, mass, and distance d. mass, force, and energy

The pressure of air pushing down on a house roof is extremely large. Why is the roof not crushed?

What will the speed of a sound wave change if the Temperature of the medium rises

Which sequence lists types of material in order from least conductive to most conductive

Spectrum is Latin for which word? A. appearance B. scale C. range D. spread

How is work related to force and displacement?

Calculate the buoyant force (in N) on a 1.0 m^3 chunk of brass submerged in a bath of mercury.

What is the current produced by the solar cells of a pocket calculator through which 4.00 C of charge passes in 4.00 hr? Give your answer in mA.