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A toy car of mass 2.0 kg moving to the right with a speed of 8.0 m/s collides perfectly in elastically with another toy car of mass 3.0 kg that is moving to the left with a speed of 2.0 m/s. Immediately after the collision the velocity of the system is.
after boarding an airpalne you carry your 14.0 kg suitcase down the aisle to your seat a distance of 24.0 m
The men's world record for the shot put, 23.12m, was set by Randy Barnes of the United States on May 20, 1990. If the shot was launched from 6 f above the ground at an initial angle of 42 degrees, what was its initial speed.
two tiny conducting spheres are identical and carry charges of -20.2c and 54.8c. they are separated by a distance of
A slide projector needs to create a 98 cm high image of a 2.0 cm tall slide. The screen is 300 from the slide. How far should you place the lens from the slide
A chartered airplane flies 100 km east, then 350 km northwest, and then 150 km at 30° west of south. Find the magnitude of the last leg of the journey
A 300 pound man is submerged in water, and his submerged weight is approximately 120 pounds. What is the volume of this individual
You take a set of measurements for the wavelengths and frequencies of standing waves on a string that is under a tension of 1.96 N. What is the linear mass density of the string
a ferris wheel with a radius of 14.0 m rotates at a constant rate completing one revolution in 30.0s. what is the
A 1200 kg car is traveling at a constant speed of 13 m/s up a hill that makes a constant angle with the horizontal. How much energy is dissipated by dissipative forces in one second
A certain ac signal at 1000 Hz is applied across an inductor and a 100-ohm resistor. If the power factor of the circuit is 0.4, what is the impedance of the circuit
A 25-ohm resistor, a 55-ohm resistor, and a 75-ohm resistor are connected in parallel and placed across a 9.0-V battery. What is the current through each branch of the circuit
A silver coin lies on the bottom of a clear lake 5.5 m deep. The coin is 4 cm in diameter. How far away along the horizontal direction is the coin actually located from your eye
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