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Q. A toy car with mass of m=166 GRAMS crashes into a spring with constant k=45 N/m. If the car was going v=1.5 m/s, then how far will the spring compress?
Q. At one point in a skydive, a falling 66.00 kg skydiver is encountering air resistance of 452 N. How much does the skydiver weigh?
A humanitarian aid package is dropped from a plane flying horizontally 500m above the ground with a speed 100m/s. What is the speed of the package at time of impact? (Calculate the total speed, not a horizontal or vertical projection.)
A pair of in-phase stereo speakers is placed side by side, 2m apart. You stand directly in front of one of the speakers, 5m from the speaker. What do you hear.
assuming the weight is evenly distributed.On a hot day in Las Vegas, an oil trucker loaded 37000 L of fuel. He encountered cold weather on the way to Utah, where the temperature was 23K lower than Las Vegas.
A simple generator has a 620-loop square coil 21cm on a side. How fast must it turn in the 0.690 T field to produce a 140 V peak output.
How much time takes to release net radiant energy from body
A container of hot water at 50 degrees cools to 49 degrees in how many seconds when it is placed in a room that is t 20 degrees. use newton's law of cooling to find the time it will take for the container to cool from 50 degrees to 49 degrees.
When verticaly falling sand hits a horizontally moving cart, the cart slows. avoid any friction between the cart and the tracks. Give two reason for this, one in terms of a horizontal force acting on the cart, and one terms of momentum conservatio..
A solid cylinder with mass and radius, rotating with angular speed about an axis throughout its center, is set on the horizontal surface for which the kinetic friction coefficient is.
Laboratory measurement examine that the normal wavelength of this spectral line is 486.133 nm. Is the star coming toward us or moving away from us? At what speed.
Assume this is the innermost line of interference (m = 0) and that speed of sound in air is 331 m/s, find the (linear) frequency of the sound in Hz.
The ends of two thin glass tubes are stuck in the same pool of water. Although both tubes are thin, one tube has a smaller inside diameter (Tube 1) than the other (Tube 2). Both tubes are made of the same material. Would you expect the level in Tu..
Two small metallic spheres, each of mass 0.20g, are suspended as pendulums by light strings from a common point.
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