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Determine how much energy is lost when a 3,500 lb car moving 40 mph collides inelastically with a stationary car with the same mass?
Determine how much is lost if the first car was going 80 mph instead?
A particle moves along the x-axis. Its position is given by the equation x= 7 + 3t2 - 8t3 where x in meters and t in seconds. Find what is the objects acceleration
A guitar string is 60 cmlong. The string has a mass of 1.8g and is under a tensionof 945N. Calculate the fundamental wavelength for this string
Determine the total energy radiated by the Sun each day. The Stephan-Boltzmann constant is 5.6696 × 10-8 W/m2/K4, e = 1, and the radius of Sun is 6.96 × 108 m.
A proton is initially at rest. After some time, a uniform electric field is turned on and the proton accelerates. The magnitude of the electric field is 1.88 multiply.gif 105 N/C.
Two wheels have the same mass and radius of 4.3 kg and 0.52 m, respectively. Find the net external torque that acts on each wheel
A disk-shaped merry-go-round of radius 2.03m and mass 185kg rotates freely with an angular speed of 0.671rev/s. What is the final angular speed of the merry-go-round
question an aircraft has a lift-off of 120kmh. a what minimum constant acceleration does the aircraft require if it is
A box is sliding with a speed of 4.50 m/s on a horizontal surface when, at point P, it encounters a rough section. Use the work-energy theorem to find how far this box slides before stopping
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. Estimate the temperature increase of the beef due to this procedure
the punter on a football team tries to kick a football so that it stays in the air for a long hang time. if the ball is
Brass is an alloy of copper and zinc. Does the addition of zinc to copper reason an increase or decrease in the speed of sound in brass rods compared to copper rods? Describe.
A rod of length L has a total charge Q uniformly distributed along its length, Find an expression for the electric potential as a function of position along the x axis
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