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The body of a 1284 kg car is supported on a frame with four springs. The spring constant of a single spring is 1.90×104 N/m. Four people riding in the car have a combined mass of 247 kg. When driven over a pothole in the road, the frame vibrates and for the first few seconds the vibration approximates simple harmonic motion.
What is the period of vibration of the car?
How high will a 2.0 kilogram rock go if it is thrown straight up by a person who does100 Joule of work on it
A glider of mass 0.155 is moving to the right on a frictionless, horizontal air track with a speed of 0.730. Find the magnitude of the final velocity of the 0.155 glider
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
consider a uranium nucleus to be a sphere of radius r7.4 10-15 meters with a charge of 92e distributed uniformly
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
The hail comes straight down at a mass rate of m/?t=0.069 kg/s and an initial velocity of v0= -15 m/s. calculate the magnitude of the force exerted by the hail on the roof
A 250 g block of wood hangs from a light string 0.78 m long. The block is shot with a bullet of mass 4.2 g, what was the velocity of the bullet just before it hit the block
A 4.8 Hz wave with an amplitude of 12 cm and a wavelength of 27.0 cm travels along a stretched horizontal string. How far does a knot on the string travel in the same time interval
How much would it cost just to keep the hot water inside the heater for one week? d)Suppose that you wrap the hot water heater on all sides with a 10 cm thick blanket of fiberglass insulation which has a thermal conductivity of 0.04 W/(m K).
A 61.5-kg person, running horizontally with a velocity of +3.99 m/s, jumps onto a 16.2-kg sled that is initially at rest. Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away
One end of a uniform rod of length 4L and weight Fg is supported by a cable. Determine the minimum distance, x from the wall, at which an additional object of weight Fg can be hung without causing the rod to slip
After a 0.839 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.48E+6 m/s. Through what angle was the photon scattered
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