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An electric motor is rated to have a maximum power output of 0.68 hp. If this motor is being used to lift a crate of mass 208 kg, how fast (i.e., at what speed) can it lift the crate? Hint: Assume the only other force on the crate is the force of gravity.
What is the magnitude of the average force required to stop 1200kg car in 9.0 if the car is traveling at 65km/h
The accompanying pressure-volume graph shows an engine cycle with one isothermal process, B-C. What is the net work done by the gas during one cycle
A 10m^3 tank of compressed natural gas has an absolute pressure of 400 kPa at a temperature of 27 C. What is the mass of the gas in the tank
Astronomers have observed a planet orbiting a near-by star. Through close observation, What is the velocity at apogee, in km/s, for the planet
A copper wire that is 1 mm thick and 30 cm long is connected to a 1 V battery. What is the power dissipated in the wire at this temperature
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
Consider an AC power supply that provides a voltage of 27sin(119t)volts, where t is in seconds. The power supply is hooked up to a 195 resistor. What is the mean current through the resistor
While on a camping trip, you would like to carry water from the lake to your campsite. find Which bucket holds more water
Jupiter has mass M, radius R and orbital period T, while the Sun has mass m, radius r and orbital period t. Calculate the ratio of the centrifugal acceleration to the gravitational acceleration at the equator of
In a certain region, the earth's magnetic field has a magnitude of 4.7 × 10-5 T and is directed north at an angle of 69° below the horizontal, Determine the bullet's electric charge
An ambulance siren is the source of sound emitted with a frequency of 1600 Hz. What is the frequency of the reflected sound wave heard at the ambulance
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. What is the approximate temperature at this altitude
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