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An air conditioner connected to a 120 V rms ac line is equivalent to a 11.0 resistance and a 1.50 inductive reactance in series.
a) Compute the impedance of the air conditioner.
b) Compute the average rate at which power is supplied to the appliance.
a sound wave travels twice as far in neon ne as it does in krypton kr in the same time interval. both neon and krypton
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 260 J/s. The energy is transferred a distance of 1.8 × 10-3 m through a body whose surface area is 1.3 m2. Assuming that the thermal conductivity..
The position of an object connected to a spring varies with time according to the expression x = (4.8 cm) sin(9.3 ?t). Find the amplitude of the motion
A rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what direction with respect to the billboard would a space traveler have to pass for the billboard to appear square?
Consider a spherical asteroid with a mass of 6.00×10^15 kg and a radius of 9.70 km. What is the speed of a satellite orbiting 6.00 km above the surface
A rope can withstand 1.0 x 10^3 N of tension. If the rope is being used to pull a 10.0-kg package across a c=frictionless surface, what is the greatest acceleration that will not break the rope
This time, William Tell is shooting at an apple that hangs on a tree . The apple is a horizontal distance of 20.0m away and at a height of 4.00m above the ground, what is the arrow's initial velocity
An ocianliner is heading due north with a speed of 8.5 m/srelative to the water. A small sailboat is heading 45 degreeseast of north with a speed of 1.0 m/s relative to thewater. Determine the directional angle relative to due north
From what height will you have to drop the rock on Earth so that the fall-time on both planets is the same.
A 743 turn circular loop coil 12.6 cm in diameter is initially aligned so that its axis is parallel to Earth's magnetic field. In 1.5 ms the coil is flipped so that its axis is perpendicular to Earth's magnetic field.
A 30-kg shopping cart full of groceries sitting at the top of a2.0-m hill begins to roll until it hits a stump at the bottom ofthe hill. How deep is the dent made in the car?
Radio waves are electromagnetic waves that travel at a speed of 3.00*10 8 m/s, the speed of light. An AM radio station has an assigned frequency of 670 kHz, which means that the radio waves broadcast by the station are at this frequency. Discover..
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