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A man goes fishing for dinner. He walks 5 km due West from his house, and tries to catch a fish, after 5 hours and no fish, he walks 5 km due North. At the new location, he quickly catches a fish. He walks 5 km due South and arrives at home. On the way home, he saw a bear. What is the color of the bear?
A potter's wheel having a radius 0.450m and a moment of inertia 15 kg•m2 is rotating freely at 45 rev/min. The potter can stop the wheel in 7.50 s by pressing a wet rag against the rim and exerting a radically inward force of 68 N.
The number density in a container of neon gas is 4.70×1025m?3. The atoms are moving with an rms speed of 640m/s. What is the pressure inside the container
The near point of a naked eye is 30 cm. When an object is placed at the near point and viewed by the naked eye, it has an angular size of 0.053 rad. Determine the angular size of the image
What force does a 55 kg passenger exert on the seat when she is at the top of the Ferris wheel.
Consider a three dimensional rectangular infinite potential well with sides of length L, 2L and 3L. What is the energy of the first excited state relative to the energy of the ground state
An elevator is moving upward at a constant speed of 2.50 m/s. A bolt in the elevator ceiling 3.00 mabove the elevator floor works loose and falls. How long does it take for the bolt to fall to the elevator floor
A 28-turn circular coil of radius 4.20 cm and resistance 1.00 %u03A9 is placed in a magnetic field directed perpendicular to the plane of the coil. Calculate the induced emf in the coil at t = 5.80 s
A heat engine does 798.57 J of work per cycle while exhausting 163.83 J of waste heat. What is the engine's thermal efficiency in percent
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from their prey to determine the prey's speed. calculate the speed of the insect
The 100 block in 4.7 to reach the floor after being released from rest. What is the mass of the block on the left.
An alpha particle (a He nucleus, containing two protons and two neutrons, What is the diameter of the path followed by this alpha particle
A solid cylinder of radius 0.35 m is released from rest from a height of 1.8 m & rolls down the incline as shown. Find the angular speed of the cylinder when it reaches the horizontal surface?
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