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An air conditioner draws 12 A at 220 V ac. The connecting cord is copper wire with a diameter of 1.450 mm.
a. how much power does this air conditioner draw?
b. If the total length of wire is 18 m, how much power is dissipated in the wiring?
An open railroad car of mass 2496 kg is coasting with an initial speed of 17 m/s on a frictionless, horizontal track. How much water (in kilograms) has accumulated in the car
Assume that your reaction time is 0.50 s and that your car brakes with constant acceleration. How far are you from the intersection when you begin to apply the brakes? Illustrate what acceleration will bring you to rest right at the intersection?
q1. an object hangs from a spring balance. the balance indicates 40 n in air and 30 n when the object is submerged in
The power required by an ice maker is 225 W and is the rate at which it does work. The ice maker operates like a refrigerator or an air conditioner and has a coefficient of performance of 3.60.
The output piston of a hydraulic press has a cross-sectional area of 0.20 cm2. What force is applied to the input piston if that piston has a diameter of 5.0 cm
Accelerating charges radiate electromagnetic waves. Calculate the wavelength of radiation produced by a proton in a cyclotron with a radius of 0.500 m
A 5 kg box rests on a table. Amassless string in attached to the box and is hung over a massless, frictionless pulley. find the force that the table exerts on the box
You are on a bridge which is a height 30m above the water. You first drop a ball and then 1.5 seconds later throw a second ball down so that both balls hit the water at the same time.
a bus contains a 1740 kg wheel (a disk that has a .56 m radius) and has a total mass of 9600 kg. How high can the bus climb with this stored energy and still have a speed of 3.10 m/s at the top of the hill
A slit of width 0.50 mm is illuminated with light of wavelength 500 nm, Find the widths of the first and second maxima of each side of the central maximum
A house is 48.9 ft long and 29.7 ft wide, and has 7.71 ft high ceilings. What is the volume of the interior of the house in cubic centimeters
An L-C circuit containing an 73.5-mH inductor and a 1.05-nF capacitor oscillates with a maximum current of 0.705 A. Calculate the oscillation frequency of the circuit
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