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Problem: A 1500-kg automobile is pulled behind a tow truck. The power exerted by the tow truck on the car is a constant 50 kW.
Part I: Determine the time required to accelerate the automobile from rest to a speed of 60 km/h on a level road.
Please, try to give explanation to find the time required to accelerate the automobile. Thanks.
A 5.7 g bullet leaves the muzzle of a rifle with a speed of 326 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.85 m long barrel of the rifle
two harmonic oscillators a and b of mass m and spring constants ka and kb respectively are coupled together by a spring
A body oscillates with simple harmonic motion according to x = (8.5 m) cos[(5.0pi rad/s)t + pi/3 rad]. What is the phase of the motion
A Carnot air conditioner takes energy from the thermal energy of a room at 70 degrees F and transfers it as heat to the outdoors,which is at 96 degrees F. For each joule of electric energyrequired to operate the air conditioner, how many joules arere..
The wheel of a car has a radius of 20cm. It initially rotates at 120rpm. In the next minute it makes 90 revolutions. How much farther does the car travel before coming to rest
Determine total work to be done in order to push a 20 x 20 cm2 square conductive frame into magnetic field of 0.3 T. Determine emf produced in the frame during the motion
The star Sirius is a distance of 8 light years from the earth. If Sirius suddenly stopped shining, how much longer would it be seen on earth
You are travelling in a convertible with the top down. The car is moving at a constant velocity of 25 m/s, due east along flat ground. Determine how far has the car moved when you get a chance to catch the tomato
The electron beam inside a television picture tube is 0.4 mm in diameter and carries a current of 55 µA. What is the power delivered to the screen by the electron beam
An object is hung from a spring balance attached to the ceiling of an elevator cab. Determine the reading when the elevator is moving upward with a constant speed of 8.5 m/s
The surface of the Sun has a temperature of about 5918 K. Determine the total energy radiated by the Sun each day
The temperature inside a house is 25°C while the temperature outside is 10°C. Approximately how much energy is radiated per second
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