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A steel cable with total length 26 m and mass 140kg is connected to two poles. The tension in the cable is 6,521 N, and the wind makes the cable vibrate with a frequency of 2 Hz. Calculate the wavelength of the resulting wave on the cable.
A ball is launched directly upward from ground level with an initial speed of 20 m/s. (Air resistance is negligible.) What is the greatest height reached by the ball
A 3700 Ω resistor and a 1.2 µF capacitor are connected in series across a generator (60.0 Hertz, 120 Volt rms). Compute the average power delivered to the circuit
Three equal charges of q= +4.00x10^-7 care located at the corners of a right triangle whose sides are the length 6.00cm, 8.00cm, and 10.00cm. Find the net force of the charge located
How much force is needed to lift a car weighing 1000kg on a lift with area 1 m^2? The area of the pump is .1 m^2.
A small statue has a height of 3.4 cm and is placed in front of a concave mirror. Find the focal length of the mirror
The temperature outside a house is -20-C and inside it is 20-C. What is the ratio of the density of the outside air to the density of the inside air? Would inflltration, which results from cracks around the windows, doors, and siding, etc., occur ..
How long will the energy in a 340 kcal cup of yogurt last in a woman doing work at the rate of 180 W with an efficiency of 20.0%
It lands with a velocity of 36m/s at angle of 28 degrees below the horizontal. The positive directions are upward and to the right. Ignoring air resistance, find the magnitude and direction of the inital velocity with which the ball leaves the bat..
A +1 uC charge is held 10 cm directly above the origin. A -1 uC charge is held 5 cm directly to the right of the origin. What is the electric potential at the origin
A 1.0 kg wood block is pressed against a vertical wood wall by a 12 N force at 30 degrees above the negative x-axis. If the block is initially at rest, will it move upward, move downward, or stay at rest? (Friction is present) the coefficient of the ..
A 1945-W electric hair dryer is designed to work in the United States, where the ac voltage is 120 V rms. What power is dissipated in the hair dryer
You have a parallel plate capacitor with plates of 1.3 m2, and the magnitude of charge on each plate is 6.7 C. What is the force on an electron between the plates?
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