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A hunk of aluminum is completely covered with a gold shell to form an ingot of weight 44.0N. When you suspend the ingot from a spring balance and submerge the ingot in water, the balance reads 37.0N
What is the weight of the gold in the shell?
At 18°C, a brass cube has an edge length of 32 cm. What is the increase (in square cm) in the cube's surface area
A boy pulls with a force of 20 N on the 300 N wagon. What acceleration does the wagon have
An iron bolt of mass 70.0 g hangs from a string 35.2 cm long. The top end of the string is fixed. Find the magnetic force on the bolt
The wheel weighs 70 kg, and is 120 cm in diameter. you mount the wheel by its central axis, What is the angular velocity of the wheel at the end of the fall
A 10.0-g bullet is fired from a rifle having a barrel 0.60 m long. Choosing the origin to be at the location where the bullet begins to move, Find the speed of the bullet as it leaves the barrel
A sound wave is travelling trough a fresh water pool with a speed of 1482 m/s. what is the pressure amplitude of the wave
A nickel crystal is used as a diffraction grating for x-rays. Then the same crystal is used to diffract electrons. what is the kinetic energy of each electron
A cyclotron used to accelerate an alpha particle (m=6.65 x 10-27 kg q= 3.2 X 10-19 C) has a radius of .50 m and a magnetic field of 1.8 T. what is the force that acts on the alpha particle
The total amount of energy stored in an LC series circuit is 8.00 J. When the current through the inductor is equal to half its maximum value, how much energy is stored in the electric field
A 9.15 kg object on a horizontal frictionless surface is attached to a spring with k = 2350 N/m. find the initial potential energy of the block-spring system
A luminous object 3.0 mm high is placed 200 mm from a convex mirror of radius of curvature 200 mm. Show that the (negative) image distance can be computed using a focal length of -100mm. Compute the image size?
Starting from rest, two skaters "push off" against each other on smooth level ice, where friction is negligible. One is a woman and one is a man. find the recoil velocity of the man relative to the ice
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