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Consider 2 similar situations. First, a snow sled is initially traveling with a velocity along horizontal snow and comes to a stop through friction. A second snow sled is traveling the same initial velocity on identical snow conditions and comes to a stop as well. However, the second is traveling down hill. The second takes a longer distance to slow down to a stop. Explain why
A 100 m tall water tower holds a huge amount of water, so that the water level in the tower remains approximately constant even when some water flows out through a faucet at the bottom of the tower.
a 296 g bird flying along at 6.57 ms sees a 8.8 g insect heading straight toward it with a speed of 34.87 ms. the bird
The pilot of a spacecraft moving horizontally at 10 m /?s notices that the hailstones going past the port window makes an angle of 45° with the downward vertical. What is the speed of the hailstones with respect to the ground
An astronaut leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth. how long does the trip take
An object that is 10 centimeter tall is located 37 centimeter in front of a concave mirror of focal length 18.5 centimeter. Determine how tall is the image
In 6.00 days the number of radioactive nuclei decreases to one-eight the number present initially. What is the half-life (in days) of the material
If you notice, the measured periods are slightly different than the predicted values from Part 1.b. What could be the cause of the differences (list at least three plausible causes)?
In an interstellar gas cloud at 48.2 K, the pressure is 1.16 x 10-8 Pa. what is their mean free path
A 20 g bullet traveling at 159 m/s is fired into a 0.413 kilogram wooden block anchored to a 99 N/m spring. determine what is the angular frequency
Is this idea correct: the acceleration of the particle is constant so you can utilize the kinematic equations to discover the time when the particle passes during the field?
A potter's wheel having a radius 0.48 m and a moment of inertia of 12.3 kg · m2 is rotating freely at 55 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
in electronic equipment wires that carry equal but opposite currents are often twisted together to reduce their
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