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The de Broglie wavelength of a 1 mg grain of sand being blownby the wind is 3x10-29 m. What is the speed of thegrain of sand? How significant are its wave properties likelyto be?
A violin string tuned to 485.0 Hz is found to exhibit 3.5 beats per second with a guitar string. What was the original frequency of the guitar string
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, What length will you choose for your wire
A speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s.
A billiard ball moving at 1.5 m/s in the x direction collides with an identical ball initially at rest. after the collison one ball moves off at 45 degrees above the x axis. find both balls post collision velocities
If an underwater vehicle were to explore such a depth, what force would the water exert on the vehicle's observation window (radius = 0.10 m)? For comparison, determine the weight of a jetliner whose mass is 1.20 105 kg
A wedding ring (of diameter 1.99 cm) is tossed into the air and given a spin, resulting in an angular velocity of 23 rotations per second. what is the maximum induced potential difference in the ring
A rifle with a weight of 35 N fires a 5.5 g bullet with a speed of 200 m/s. If a 725 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
A bucket of water of mass 14.8kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.290m with mass 12.5kg. What is the time of fall
Determine the flux of particles escaping from the exobase of Earth's atmosphere using a number density at the exobase of 10^5 particles/cm^3 and a temperature of 700K.
Which of the following best describe Lenz's Law?
q1. a sailboat is running along a straight course with the wind providing a constant force of 55 lb. the only other
Two batteries are connected in parallel to power a wheelchair. find the current provided to the motor
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