A spring has a spring constant of 30000 N/m. How far must it be stretched (in meters) for its potential energy to be 47 J?

The velocity of sound in air at sea level is about 1100 ft/s. If a person hears a clap of thunder 4.00 s after seeing a lighning flash, how far is the lightning bolt?

A hockey player has an acceleration of - 3.1m/s2 how long does it take him come to a complete stop from a speed of 13m/s

In deep space there is very little friction once they are launched into a probe into deep space where there are no external forces acting on it scientists shut the probe's engines off because the scientists want the probe to

Which of the following statements is/are true? Check all that apply. Check all that apply. The total mechanical energy of a system is constant only if nondissipative interactions occur.

Volcanoes can form along all of the following except a) transform boundaries b) hot spots c) convergent boundaries d) divergent boundaries

Compare the friction force on the cart when it is rolling along the blacktop parking lot to the friction force on the cart when it is inside the grocery store (assume the flooring is smooth vinyl tile).

Which of the following objects has the most kinetic energy? a car going 60 miles per hour a spring that is compressed a rock sitting on the edge of a cliff a bicycle going 10 miles per hour

Which type of environment results from an equal amount of solute and solvent in and out of the cell? A. hypertonic environment B. isotonic environment C. hypotonic environment D.

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the bulb?* A. 1.6A B. 9000 A C. 195 A D. 0.63 A

A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. Long after contact is made with the battery (a) the voltage across the capacitor is A) equal to the battery's terminal voltage.