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An object of mass m1 and velocity v1 undergoes an elastic head on collision with another object of mass m2 that is rest. How do the results of the collision depend on the masses?
A solenoid 85.0 cm long has a radiusof 2.60 cm and a winding of1100 turns; it carries a current of3.60 A. Calculate the magnitude of the magnetic field inside the solenoid
Top professional pitchers can throw fastballs at speeds of100mph. Given that 1 mph=0.447m/s. WHat is this speed in meters per second
An iron tower in is 399 meters tall on a cold day (T = -6.7 degrees Celsius). What is its height of the tower on a hot day while the temperature is 31.5 degrees Celsius.
The energy equivalent of one gallon of gasoline is 1.3 × 108 Joule. A compact car has a mass of 836 kilogram, and its efficiency is rated at 18.4 percent. Obtain the amount of gasoline used to accelerate the car
A steel aircraft carrier is 385 m long when moving through the icy North Atlantic at a temperature of 1.65°C. By how much does the carrier lengthen whereas it is travelling in the warm Mediterranean Sea at the temperature of 23.30°C.
a 2.00 g plastic bead charged to -4.00 nc and a 4.00 g glass bead charged to 8.00 nc are 2.00 cm apart center to
A 11-g piece of Styrofoam carries a net charge of -0.85 ?C and floats above the center of a large, What is the charge per unit area on the plastic sheet
In a slow-pitch softball game, a 0.200-kg softball crosses the plate at 20.0 m/s at an angle of 40.0° below the horizontal. Determine the impulse delivered to the ball
A 0.144 kg baseball leaves a pitcher's hand at a speed of 22.5 m/s. If air drag is negligible, how much work has the pitcher done on the ball by throwing it
It takes the elevator in a skyscraper 4.1s to reach its cruising speed of 13m/s. A 68kg passenger gets aboard on the ground floor. find the passenger's weight before the elevator starts moving
Kenny is dropped into a volcano. Stan and Kyle try to use a lift to save Kenny from rising lava. The efficiency of the motor is 0.4 and Kenny has a weight of 40kg. In order to save him, they must lift him 50 meters in 15 seconds. What is the faste..
A hunter wishes to cross a river that is 1.9 km wide and flows with a speed of 5.0 km/h parallel to its banks. What is the minimum time necessary for crossing
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