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Problem: The elevator of a large building is designed to raise a net mass of 400 kg at a constant speed of 12 m/s using an electric motor.
Part A: Find the minimum power rating of the motor in kW.
Please provide correct solution for above problem.
A city has streets laid out in a square grid, with each block 135 m long. If you derive north for three blocks, then west for two blocks, how far are you from your starting point
the horizontal surface on which the block slides is frictionless. two forces of magnitude F=25 N. N are applied to the block of mass M=5.0kg, find the magnitude of the resulting acceleration of the block
A train is rounding a circular curve whose radius is 200 m. At one instant, the train has an angular acceleration of .0015 rad/s2, Determine the angle of the total acceleration relative to the radial direction
A 120-V rms voltage at 60.0 Hz is applied across an inductor, capacitor and a 100-%u03A9 resistor in series. what is the rms value of the current in this circuit
Assume the decay constant of radioactive substance C is double the decay constant of radioactive substance D. If substance D has a half-life of 4 hour, determine what is the half-life of substance C
The magnitudes of the four displacement vectorsare A=16.0 m,B=11.0 m,C=12.0 m, and D=26.0 m. Determine the magitude and directional angle for the resultant that occurs whenthese vectors are added together.
The odometer (mileage gauge) of a car tells you the number of miles you have driven, A typical midsize car has tires 24.0 inches in diameter. How many revolutions of the wheels must the odometer count in order to show a mileage of 0.100 mile
two waves traveling in opposite directions along a string fixed at both ends create a standing wave described by yx t
Three moles of a monatomic ideal gas are heated at a constant volume of 1.12 m3. The amount of heat added is 5.89 x 103 J. Determine the change in pressure
A piece of Nichrome wire has a radius of 5.0 x10-4 m. It is used in a laboratory to make a heater that dissipates 2.00 x10^2 W of power when connected to a voltage source of 120 V. Ignoring the effect of temperature on resistance, estimate the req..
Let us take half the terminal speed as a reasonable "upper bound" beyond which we should not use our constant acceleration free-fall relationships.
A 20.0L tank contains 0.225kg of helium at 18.0%u2218C. The molar mass of helium is 4.00g/mol. How many moles of helium are in the tank
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