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Two cars approaching each other collide and stick together after the collision. One car has a mass of 1820 kg and a speed of 30 km/h in the positive x direction. The second car has a mass of 1060 kg. After the collision they both move off with a speed of 18 km/h in a direction +37o from the x axis. What was the initial velocity of the second car?
Two protons are released from rest, one from location 1 and another from location 2. When these two protons reach location 3, what is the electric potential at location 3
A fireworks rocket is launched vertically upward at 40 m/s. At the peak of its trajectory, When does the second fragment reach the ground
What is the Hall effect, give a real life example, list its applications, When an electric light bulb is operated on a low frequency AC, they noticeably flicker
A civil engineer wishes to plan a curved exit ramp for a highway in a way that a car will not have to rely on friction to round the curve without skidding. In the other words, a car moving at the designated speed can negotiate the curve even while th..
What mass (in grams) of steam at 100°C should be mixed with 257 g of ice at its melting point, in the thermally insulated container, to produce liquid water at 84.0°C.
A stone thrown upward from the top of a 100ft cliff at 150ft/s eventually falls to the beach below. (For this problem take the acceleration because of gravity to be -32 ft/s^2; take upwards to be a positive direction.) How long does it take the st..
An electron with a speed of 7.98 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.25 × 103 N/C, how much time will have elapsed
Draw a free-body diagram for the instrument during this time.(Assume that the space ship is accelerating upward. ) Find the force that the wire exerts on the instrument.
A 5.0 kilogram block is experiencing an applied 3.0 newton force in the positive x direction and is held stationary by an opposing frictional force, Determine the magnitude of the normal force
The first controlled, sustained flight in a heavier-than-air craft was made by Orville Wright on December 17, 1903. The plane took off at the end of a rail that was 60 feet long, and landed 12 seconds later, 180 feet away from the beginning of the..
A worker pushes horizontally on a large crate with a force of 304 N and the crate is moved 4.4 m. How much work was done.
An object is located 8.00 cm from a converging lens that has a focal length of 10.0 cm. The height of the object is 0.67 cm. What is the height hi of the image
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