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The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.20 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.20 m2. How much energy does this wave carry through the window during a 65-s phone call?
A 563 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 2.9 meters
two loudspeakers placed 6.0 m apart are driven in phase by an audio oscillator, whose frequency range is 1350 Hz to 1826 Hz. What is the frequency produced by the oscillator
The work function for Tin is 4.42 eV. Ultraviolet light with \lambda =50 nm is shone upon a Tin electrode
On a vacation flight, you look out the window of the jet and wonder about the forces exerted on the window.
A weather vane initially at rest has a moment of inertia of 0.104 kg · m2 about its axis of rotation. Find the angular velocity of the weather vane just after it is struck
You have a lens whose focal length is 12.7 cm. You place an object on the axis of the lens at a distance of 6.25 cm from it. How far is the object\'s image from the lens
Vector A has a magnitude of 33 and is pointing at an angle a=73° east of north. Vector B has a magnitude of 18 and is pointing at an angle b=55° south of west. Find the magnitude and direction of A+B (the sum of two vectors is more commonly known ..
A horizontal force of magnitude F = 149 N is used to push a box of mass m = 5 kg from rest a distance d = 13 m up a frictionless incline with a slope q = 22°. How fast is the box moving after this displacement
A 9820 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 20 mph, 29 degrees East of North. What is the net force (Fnet) acting on the boat
Consider two capacitors in air each with a capacitance C, both capacitors then were filled with liquid having a dielectric constant k, What is produced heat
What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude to its weight, What must the charge (sign and magnitude) of a particle of mass 1.40g
A 8150 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 30 mph, 17 degrees East of North. What is the force of the wind acting on the boat
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