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A string has a linear density of 4.80 10-3 kg/m and is under a tension of 345 N. The string is 1.5 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown below in the drawing. (a) Determine the speed of the traveling wave. m/s (b) Determine the wavelength of the traveling wave. m (c) Determine the frequency of the traveling waves that make up the standing wave.
Two charges, +q and -q, are located in the x-y plane at points (0,+d/2) and (0,-d/2), respectively. Calculate the magnitude of the electric field at point P with the superposition principle
A 2kg block initially hangs at rest at the end of two long strings of negligible mass as shown in the diagram below. a 150 g bullet, moving horizontally with some speed, strikes the block and appears from other side at speed of 350 m/s. after the ..
A 500 kg elevator starts from rest. It moves upward for 2.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
A mass on a spring bobs up and down over a distance of 29 cm from the top to the bottom of its path four times each second. What are its period and amplitude
In a PET scan, an electron and positron annihilate each other, creating two (massless) photons. What is the kinetic energy of each photon in this case
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
An ALkaline earth atom has 2 valance electrons. Both can be spin up and spin down. Write the singlet states
question an electric device which heats water by immersing a resistance wire in the water generaters 50 cal of heat per
Four identical springs with k= 67.1kN/m support a car, with the car's weight distributed equally among them. Find the maximum weight for the car
A proton moves perpendicularly to a uniform magnetic ?eld B with a speed of 1.9 × 10 ^7 m/s and experiences an acceleration of 8 × 10 12 m/s 2 in the positive x direction when its velocity is in the positive z direction. The mass of a proton is 1...
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
A satellite of mass 200 kg is orbiting around the Earth with constant speed, in a circular orbit. The centripetal acceleration is am = 0:6 m/s2 . We need to make a correction to its orbit so we fi re its boosts. The fi rst boost creates an instant fo..
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