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Aluminum rivets used in airplane construction are made slightly larger than the rivet holes and cooled by "dry ice" (solid CO2) before being driven. If the diameter of a hole is 4.460 mm, what should be the diameter of a rivet at 23.0 oC, if its diameter is to equal that of the hole when the rivet is cooled to -79.5 oC, the temperature of dry ice? Assume that the expansion coefficient of aluminum is 2.4 x 10-5(oC)-1 and remains constant.
Jill of the Jungle swings on a vine 6.9 m long. What is the tension in the vine if Jill, whose mass is 63 kg, is moving at 2.4 m/s when the vine is vertical
suppose a solid disk of radius r3.64 cm is given an angular velocity omega54.83 rads about an axis through its center
A runner approaching the start/finish line hears the bell signaling one lap to go. The bell emits a 352 Hz tone, How fast is she going
A 2.0 cm x 2.0cm x 9.0 cm block floats in water with its long axis vertical. The length of the block above water is 1.0cm What is the block's mass density
In a playground, a wooden horse is attached to the ground by a stiff spring. When a 24 kilogram boy sits on the horse, the spring compresses by 28 centimeter. Find the oscillation frequency of the spring
What is the greatest possible distance from the wall
An inductor is to be made by wrapping wires around a paper tube of radius 0.702 cm and length 8.44 cm. How many turns will give the inductor an inductance of 4.000e-3 H?
A person with a mass of 78 kg is riding in an elevator that is accelerating upward at 170 m/s2. What is the person's apparent weight
A rectangular block of copper has sides of length 17 cm, 28 cm, and 44 cm. If the block is connected to a 5.2 V source across two of its opposite faces, find the following. What is the minimum current the block can carry? A
A blower releases a ball down the lane with a linear velocity at release of 12 meters per second. what was the angular acceleration of the arm to the release point
While two forces act on a particle, it moves at constant velocity v→ = (3m/s)i^ - (4m/s)j^. One of the forces is f→1= (2N)i^ + (-6N)j^. What are other forces?
A 200 ohms resistor has a current of 1.5A running through it and is connected in series with 300 ohms resistor. What is the emf of the battery
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