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A 6.5m long wire with a mass of 55g is pulled tight with a tension of 7.5N. a. What is the velocity of a wave on this string? b. If a standing wave is produced on this wire, what would be the frequency of the second harmonic?
a 200kg ball is shot from a 2200kg cannon horizontally and positivly at 200m/s. what is the cannons speed, in respect of Earth
The displacement vectors 44.5 cm at 15.0° and 23.0 cm at 51.0° both start from the origin and form two sides of a parallelogram. Find the area of the parallelogram
An airplane goes North with an average speed of 100m/s, What is the plane's velocity relative to the ground
A wave on a string is described by the equation y = (4.23 mm)cos(2440t ? 0.42x) where t is measured in s and x is measured in mm. What is the frequency and wavelength of the wave
A current of 17.0 mA passes through a circular cable of 2.0m of circumference. A magnetic field of 0.8T passes parallel to the plane of the "loop". calculate what is the magnetic moment of the loop
Calculate the magnitudes of the accelerations of points P1 and P2 halfway through this time interval - determine the magnitudes of the velocity v and the acceleration a of the fireman at A.
question 1 a cart of mass 3.2 kg is moving with a velocity of 15.2 ms. it makes a head-on perfectly inelastic collision
A block of mass 8.6 kilogram is pulled along a horizontal frictionless floor by a cord that exerts a force of 42.0 Newton at an angle 24.1 degree above the horizon
question a rock is tossed off the top of a cliff of height 34.5m. its initial speed is 29.1ms and the launch angle is
The muon is a subatomic particle with the same charge as an electron but with a mass that is 207 times greater: mmu=207me. Physicists think of muons as "heavy electrons."
A viewing window on the side of a large tank at a public aquarium measures 32 in. by 37 in. The average gauge pressure from the water is 6 psi
A 19.6 centimeter diameter coil consists of 40 turns of circular copper wire 1.7 millimeter in diameter. Compute what the current in the loop
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