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A 815-kg car stopped at an intersection is rear-ended by a 1740-kg truck moving with a speed of 13.0 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of both vehicles after the collision.
___ (car)
___ (truck)
A racecar travelling at a constant speed turns in a circle with a radius of 10 m. what is the racecar's speed
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
A jet plane at take-off can produce sound of intensity 9.20 W/m^2 at 30.2 m away. What power of sound does the jet produce at take-off
Find the length of a side of a cube having a mass of 1.3 kg and the density of nuclear matter, taking this to be 2.3 ? 1017 kg/m3
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.27 m/s. What is his speed when he catches up
What must be the value of the putty mass m so that the amplitude after the collision is one-half the original amplitude.
A girl and her bicycle have a total mass of 40 kg. At the top of the hill her speed is 5.0 m/s. what is her speed at the bottom
Calculate the self-inductance of a 55.0 cm long, 10.0 cm diameter solenoid having 1000 loops. How fast can it be turned off if the induced emf cannot exceed 3.00 V
The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 4.4 earth years
The refractive index of a material is 2.58. What is the critical angle for a light ray
The Atwood machine in the figure consists of masses m1 = 1.20 kg and m2 = 1.10 kg and a solid pulley with a diameter of 5.9 cm, what is the speed of the heavier mass after it has fallen a distance of 1.65 m
q1. a conveyor belt at a quarry lifts 2000 kg of sand per minute up a vertical distance of 12 meters. the sand is at
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