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A 0.063 kilogram arrow is fired horizontally. The bowstring exerts an average force of 60 Newton on the arrow over a distance of 0.95 meter. Compute with what speed does the arrow leave the bow?
a particle with charge 8.30 nc is in a uniform electric field directed to the left. another force in addition to the
Two organ pipes, open at one end but closed at the other, are each 1.08m long. One is now lengthened by 1.20cm. Find the frequency of the beat
A plastic bar that is 20 cm long passes a total charge of 5.0 nC distributed evenly along its length, Find the x component of the electric field at point (0.0m,0.10m)
Assume a spacecraft of mass 28,000 kg is accelerated to 0.43c. How much kinetic energy would it have? If you utilized the classical formula for kinetic energy, by what percentage would you be in error?
A generator has a square coil consisting of 217 turns. The coil rotates at 104 rad/s in a 0.146-T magnetic field. What is the length of one side of the coil
A farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is 1.990 diopters. How far is her near point from her eyes
A football is thrown horizontally with an initial velocity of (18.9 m/s)x. Calculate the direction of the velocity with respect to the positive x-axis at this time
Co-60 is often used as a radiation source in medicine. It has a half-life of 5.25 years. How long, after a new sample is delivered, would the activity have decreased to about 1/3 its original value.
Four uncharged capacitors with equal capacitances are combined in parallel. The combination is connected to a 5.47-V battery, which charges the capacitors. The charging process involves 3.25 × 10-4 C of charge moving through the battery. Find the cap..
A person is lying on a diving board 3.50 above the surface of the water in a swimming pool. What is the depth of the water at this point
A coin placed on a turntable rotating at 33.6 rev/min will stay there if its center is placed no further than 8.3 cm from the axis of rotation. compute coefficient of friction between the coin and turntable
global positioning satellites gps can be used to determine positions with great accuracy. the system works by
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