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A sample of an unknown material appears to weigh 280 N in air and 175 N when immersed in alcohol of specific gravity 0.700.
(a) What is the volume of the material?
A 480-kg sailboat has an acceleration of 1.17 m/s2 at an angle of 59.3 ° north of east, find the direction of the net force that acts on the sailboat
About the axis of the rod.ωA ball of mass m is attached by two strings to a vertical rod. The entire system rotates at constant angular velocity.
44.3 kg of ice is melted into water then raised to a temperture of 354.8 K. How much energy is needed to complete this process
A light string that does not stretch changes from horizontal to vertical as it passes over the edge of a table. The string connects m1, a 3.4 kg block, originally at rest on the horizontal table at a height 1.27m above the floor, to m2, a hanging ..
A 11.7 cm radius thin ring carries a uniformly distributed 15.4μc charge. A small 8.6g sphere with a charge of 1.5μc isplaced exactly at the center of the ring and given a very smallpush so it moves along the ring axis (+x axis)
A rock is projected from the top of a building with an initial volocity of 14.5 m/s at an angle of 57 degrees above the horizontal. how tall is the building
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.45km below the surface, What's the water pressure at that depth
The motor of a fan turns a small wheel of radius rm = 2.23 cm. This wheel turns a belt, which is attached to a wheel of radius rf = 3.07 cm that is mounted to the axle of the fan blades. Measured from the center of this axle, the tip of the fan bl..
A 1.00-kg block compresses a spring for which k1 = 100. N/m by 20.0 cm and is then released to move across a horizontal, frictionless table, determine the maximum compression of the second spring
A tug of war is held between two teams of five men each. The mass of each man is 80 kg and he can initially pull on therope with a force of 1000 newtons. find the position of the teams as function of time
A projectile is launched at 64 degrees at 63.7 m/s from the top of a hill. How far down the hill does the projectile hit
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 2.70 m/s upward. To celebrate the takeoff, you open a bottle of champagne, expelling the cork with a horizontal velocity of 4.00 m/s rela..
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