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A water wave demonstration tank is 40 m long. At one end, at the origin, Mary is generating waves described by the function y1=2.0 cm cos[\pi/(9m) (4x-(8m/s)t]. At the other end Paul is generating waves described by y2=-3.0cm sin [2\pi/(3s)((1s/m)x+2t)]. At x=10m, Peter is recording the water level.
a. What level does he record at t= 0.5s?
b. What frequency describes the data he records?
Consider a slab of nonmultiplying material with a plane source at its origin emitting S0 neutrons/ cm2 · sec. Also calculate the rate at which neutrons leak from the slab in each case.
Two blocks of masses m1 = 2.00 kg and m2 = 4.25 kg are each released from rest at a height of y = 5.20 m on a frictionless track, obtain the velocity of each block just before the collision
A day on a distant planet observed orbiting a nearby star is 31.7 hours. Also, a year on the planet lasts 79.5 Earth days.* Calculate the average angular speed of the planet
an amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that any person
if one micrometeorite a sphere with a diameter on the order of 1.7 x 10-6 m struck each square meter of the moon each
An electron collides elastically with a hydrogen atom that is initially at rest. Assume all the motion occurs along a straight line. What fraction of the electron's initial kinetic energy is transferred to the atom? (Take the mass of the hydrogen ato..
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley. Assume the rope and pulley are massless and there is no friction in the pulley.
Four identical charges (+2uC each) are brought from infinity and fixed to a straight line. The charges are located .4 m apart. Determine the electric potential energy of this group.
Under ambient conditions (T=300K ), the intrinsic electron concentration of silicon (Si) is ni=1.45*10^10cm^-3. Calculate the band gap energy of the semiconductor
A blue car with mass mc= 459 kg is moving east with a speed of vc= 20 m/s and collides with a purple truck with mass mt= 1246 kg that is moving south with a speed of vt= 10 m/s. find the magnitude of the initial momentum of the car
A sealed container of volume 0.10 m^3 holds a sample of 3.0 x 10^24 atoms of helium gas in equilibrium, Calculate the temperature and pressure of the helium gas
A common flashlight bulb is rated at 0.300 A and 3.00 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 2.60 ?, what is the temperature of the filament when the ..
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