Explain why the speed of a sled increases as it moves down a snow covered hill even though no one is pushing on the sled

It takes about 200 N to push a vehicle on a flat road. How much energy do you need to expend to push this vehicle for 1 km? Show your calculations here:

The asthenosphere is part of which layer of earth

A discrete, distinct pattern of specific wavelength against a background of continuous spectrum

Which transition by an electron will release the greatest amount of energy? hurry!

Why are petroleum and natural gas deposits highly sought after

Explain why glucose is important to a cell

4. How far does a car travel in 90 seconds if it is traveling at a speed of 55 m/s?

Total energy input is 1400 and my efficiency is 80% so what is the useful energy output in jules?

What is the force of gravity acting on a 2000-kg spacecraft when it orbits two Earth radii from the Earth's center (that is a distance r=6380 km above the Earth's Surface. The mass of the Earth is 5.98 x 1024 kg.

An LC circuit has a 6.00 mH inductor. The current has its maximum value of 0.570 A at t = 0s. A short time later the capacitor reaches its maximum potential difference of 66.0 V. What is the value of the capacitance?