It takes 86 joules of energy to raise a box 2 meters using the pulley setup shown above. Without the pulley, the box can be raised 2 meters using only 82 joules of energy. What could explain this 4-joule difference?

Describe what happens to the pressure, volume, and temperature of the gas in the internal combustion engine during the compression stroke.

24-gauge copper wire has a diameter of 0.51 mm. The speaker is located exactly 4.27 m away from the amplifier.

At the Earth's surface, warm air expands and rises, leaving behind what is known as an area of; cold air is dense and sinks to the surface to create what is known as an area of

Why is objectivity important in science

A horizontal vinyl record of mass 0.115 kg and radius 0.0896 m rotates freely about a vertical axis through its center with an angular speed of 5.58 rad/s and a rotational inertia of 4.84 x 10-4 kg·m2. Putty of mass 0.

Which object has more thermal energy a bowl of soup or pot of soup

When you look into a clear pond, a fish may appear to be in a different position than it actually is. What is this caused by? A. diffraction B. dispersion C. refraction D. reflection,

How long would it take to drive to alpha centauri (4.4 light-years away) ?

A type of fault where the hanging wall slides upward

How was dyslexia treated in the past and how is dyslexia treated today?