What is the potential energy of a 900 kg rock positioned on a cliff 30 m above the ground?

4. Three polarizing disks whose planes are parallel and centered on common axis. The directions of their transmission axes relative to the vertical are respectively: θ1 = 40o clockwise, θ2 = 24o counter-clockwise, and θ3 = 26o clockwise.

Water is traveling into what sphere during infiltration?

Find the work w1 done on the block by the force of magnitude f1 = 65.0 n as the block moves from xi = - 3.00 cm to xf = 3.00 cm.

Which type of tissue allows for cordination and control movement?

As you add more capacitors in series to a constant voltage source, the total energy in the circuit a. decreases b. increases c. stays the same d. all of the above

A scientist has found a new drug that appears to provide weight loss in humans without dieting. The scientist has tested the drug on thousands of people and has found a few side effects.

If there are 20 Earthworms in a garden that covers 5 square meters, what is the population density of the earthworms? A. 20 Earthworms B. 4 C. 100 Earthworms per square meter D. 4 Earthworms per square meter

How are AC and DC generators different? In AC generators, commutators produce alternating current. In AC generators, no commutators or slip rings are used. In DC generators, slip rings produce direct current.

A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to the square of its speed. The object falls with an acceleration of 4.00 m/s2 downward when it is falling downward at 70.0 m/s.

If a tank contains water 4 m deep, what is the pressure at the bottom of the tank? (Neglect the atmospheric pressure.)