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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?
Two firecrackers explode at the same place in a laboratory and are separated by a time of 3 years as measured on the laboratory clock.
A concave mirror forms a real image which is twice the size of the object. calculate the radius of curvature of the mirror
A 368g oscillator has a speed of 98.5cm/s when its displacement is 2.70cm and 72.0cm/s when its displacement is 5.00cm. What is the oscillator's maximum speed?
Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of 7.90 m/s and moving between the same two points
What must be the orbital speed of a satellite in a circular orbit 800 above the surface of the earth
A pulley with a radius of 10.0 cm is mounted on an axle that passes through the center of the pulley. calculate the instantaneous angular speed of the pulley
A toriod with a square cross-sectional area A = a x a m2 , has an inner radius R and and outter radius R+a. What are the bound currents in the Toroid
A square solenoid of length 6.82 cm has 212 turns and carries a current of 10.8 A. The sides of the solenoid measure 2.06 cm. find the magnetic flux through the cross-sectional area of the solenoid
What is the ratio of the dynamic viscosity of air to that of water at standard pressure and a temperature of 20?C? Find the ratio of the kinematic viscosity of air to that of water for the same condition?
A baseball is thrown horizontally at a speed of 43 m/s. When it reaches home plate, what is the horizontal component of its velocity
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 2.02 mT. obtain the radius of the circular path
A physics lab demonstrates the principles of simple harmonic motion (SHM) by using a spring affixed to a horizontal support. The student is asked to find the spring constant, k. After suspending a mass of 335.0 g from the spring, the student notic..
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