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A metal rod 32 cm long moves in a plane perpendicular to a magnetic field of 200 G. The velocity of the rod is perpendicular to its length. Find the speed of the rod if the potential difference between the ends is 6 V.
A force that varies linearly with time according to a relation F = 4t N is applied to an object travelling with a speed of 16-m/s. If the force decelerates the object to a complete stop in 5s, determine the object's mass. Imagine the force is at f..
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. The belt of one speed ramp moves at a constant speed such that a person who stands still on it leaves the ramp 66 s after getting on.
A thermos contains 170 cm3 of coffee at 85° C. To cool the coffee, you drop two 14-g ice cubes into the thermos. What is the final temperature of the coffee
Find the speed of the car when brakes were applied.
What is mechanical energy
three uniform thin rods, each of length L = 39 cm, form an inverted U. The vertical rods each have a mass of 15 g; the horizontal rod has a mass of 32 g. Elucidate what are (a) the x coordinate and (b) the y coordinate of the system's center of ma..
A small sphere with mass 1.20 hangs by a thread between two large parallel vertical plates 5apart. The plates are insulating and have uniform surface charge densities and. The charge on the sphere is = 8.80×10-6.
A car is traveling 17 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 7.5 m/s2. How far does the car go before it stops.
The mass of the Earth is 5.98 ? 1024 kg, Locate the center of mass of the Earth-Moon system as measured from the center of the Earth
The ramp is slanted at an angle of 17.0 degrees to the horizontal. Illustrate what is the coefficient of kinetic friction between the block and the ramp?
How many 111 W lightbulbs can you use in a 107 V circuit without tripping a 16 A circuit breaker? (The bulbs are connected in parallel, that means that the potential difference across each lightbulb is 107 V.)
A disoriented physics professor drives a distance 3.25km north, then a distance 3.65km west, Find the direction of the resultant displacement, using the method of components
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