Computing the magnetic force on the wire
A wire of 1.62 m long carries a current of 15.7 A and forms an angle of 40.1° with the uniform magnetic field of magnitude B = 1.94 T. Compute the magnetic force on the wire.
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A block of wood floats in water having 0.68 of its volume submerged. If placed in oil, the submerged fraction of the volume is 0.92. Determine the density of the wood.
An object is made up of a single atomic element weighs 0.9500 N in air and 0.5981 N if fully submerged in water. Compute the density of the object.
At what speed v does the gasoline start to shoot out of the hole? Suppose the pressure outside the tank is 1 atm or 1.01×105 Pa.
A horizontal power line carries a current of around 7020 A from south to north. The magnetic field of Earth (66.0 µT) is directed toward the north and is inclined downward at around 75.0° to the horizontal. Determine the magnitude of the
A block begins at rest and slides down a frictionless track. The acceleration of gravity is around 9.81 m/s^2. It leaves the track horizontally, hitting the ground 4.6 m from the end of the track. (The track's horizontal bend is around 2.1 m high
A manufacturing firm has been averaging 18.2 orders per week for several years. But, throughout a recession, orders appeared to slow. Assume the firm's production manager randomly samples 32 weeks and finds a sample mean of 15.6 orders. The popula
If a company uses 3500 people and if the random sample of 175 of such employees has been taken by systematic sampling, determine the value of k? The researcher would start sample selection between what two values? Where could the researcher obtain
A random sample of size 81 is drawn from a population with a standard deviation of 12. If only 18% of the time a sample mean greater than 300 is obtained, what is the mean of the population?
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