What two factors affect the amount of friction that act on a moving object?

A conveyor belt at a quarry lifts 1,800 kg of sand per minute up a vertical distance of 9.5 meters. The sand is initially at rest, then moves at a speed of 0.28 m/s along the conveyor belt.

What rhymes with peach

What type of crime is committed when a hacker steals someones's bank accounts information

How much rope would need to be pulled through a pulley with a mechanical advantage of 2 to lift a load 4 ft?

A 48.0-turn circular coil of radius 5.50 cm can be oriented in any direction in a uniform magnetic field having a magnitude of 0.480 T. If the coil carries a current of 23.3 mA, find the magnitude of the maximum possible torque exerted on the coil.

If a reaction has a rate constant of 3.7 x 10-3 s-1 at 25oC, and an activation energy of 43.6 kJ/mol, what will be the rate constant for this reaction at 75oC?

Two sounds are played for you. The first has a frequency of 196 Hz. The second has a frequency of 392 Hz. Which sound will be "higher" to your ear? A) The First B) The Second C) They will sound the same

When is an object that has been dropped from a great height through the air closest to vein in a free fall? At it's terminal velocity < - - this one?

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200-kg puck has a speed of 1.00 m/s at an angle of? = 52.0

Ariella drove 40 miles to see her cousin. The trip took Ariella 2 hours. Then drove from her cousins house to a store for 30 miles. It took Ariella to hours to Ariella to arrive at the store. What was the average speed of the trip