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A room has the dimensions 10 ft X 12 ft X 14 ft. A fly starting at one corner ends up at a diametrically opposite corner.
(a) Find the displacement vector in a frame with coordinate axes parallel to the edges of the room.
(b) What is the magnitude of the displacement?
(c) Could the length of the path traveled by the fly be less than this distance? Greater than this distance? Equal to this distance?
(d) If the fly walks rather than flies, what is the length of the shortest path it can take?
a ball mass of 5 grams and radius of 1.5 cm is rolled up a frictionless ramp that is 30 degrees above horizontal with an iniitial velocity of 4 m/s
A vertical solid steel post 24.0cm in diameter and 2.50m long is required to support a load of 8100 kg. You may ignore the weight of the post. What is the strain in the post when the load is applied
A point charge q = ?2.50?C is placed at the point described in part (a). What are the magnitude and direction of the force exerted by the charge on the ring
an object travels in a circle of radius 2.0 m. at time t 0 the object has a velocity of 10 ms and it slows uniformly
1. A 1000kg convertible on the way to Pikes Peak stops on a 14.1% incline. Calculate the friction force between the tires and the road and the minimum coefficient of friction necessary to keep the car from sliding down the hill.
A 23.0 kg child plays on a swing having support ropes that are 2.10 m long. How fast will she be moving at the bottom of the swing
A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 21.1 N; when it is completely immersed in water, What is the volume of the block
A Styrofoam box has a surface areaof 0.84 m2 and a wallthickness of 2.0 cm. find what is the thermal conductivity of the Styrofoam
At the equator, the earth's field is essentially horizontal; near the north pole, it is nearly vertical. What current should you pass through the coil, to produce a net field in the center of the tank that has a dip angle of 62
A thermos contains 154 cm3 of coffee at 93.5 °C. Tocool the coffee, you drop two 12.7-g ice cubes into the thermos.The ice cubes are initially at 0 °C and melt completely. What is the final temperature of the coffee in degrees Celsius? Treatthe coffe..
If the vertical posts supporting these wires divide the lines into straight 20 meter segments, find what magnetic force does each segment exert on other
A solenoid 1.45 m long and3.10 cm in diameter carries a currentof 21.0 A. The magnetic field insidethe solenoid is 17.0 mT. Find the length of the wire forming the solenoid
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