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A generator at one end of a very long string creates a wave given by y = A cos [π(1.5x + 4.0t)], and at the other end a generator creates the wave y = A cos [π(1.5x - 4.0t)], where A = 6.0 cm, x is in meters, and t is in seconds. What is the frequency of the waves? What is the wavelength? What is the magnitude of the phase velocity? If the origin is at one end, and the length is adjusted so that there is a resonant standing wave on the string, what is x at the first node? What is x at the second node? What is x at the third node? What is x at the first antinode? What is x at the second antinode?
the speed of light in a material is 0.41 c. what is the critical angle of a light ray at the interfacce between the material and a vacuum
A singly charged positive ion has a mass of 2.53 10-26 kg. After being accelerated through a potential difference of 238 V, Calculate the radius of the path of the ion in the field
The gun on a battleship is at the surface of the water, and fires a 500 kg projectile with a muzzle velocity of 400 m/sec, What is the maximum range
a rectangular loop of wire of length = 10cm, supporting a mass m = 1 gram, hangs vertically with one end in a uniform magnetic field B= 100 Gauss. What is the direction of the current
A woman walks 300m in the direction 30° east of north, then 300 m directly east.
Three blocks of mass m1=1.0 kg, m2=2.0 kg, and unknown mass m3 are on a frictionless forizontal surface, What is the unknown mass m3
The SI units of mass density are kg/m3, but there are several other common units. One of the most commonly used units of mass density is gram per cubic centimeter, or g/cc. What is the buoyant force on the mass
Based on this information and what you learned in this chapter about the action potential, estimate the total number of sodium ion channels in the membrane of a nerve cell
A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. If he hits the ball with a velocity of 7.5 m/s and then stops, what impulse did he imply on the ball
Several ice cubes (pi = 0.9167 g/cm3) of total volume Vi = 240 cm3, Calculate the amount of heat energy Qm in J needed to melt the ice cubes (Lf = 334 kJ/kg)
An AC voltage of the form ?V = (85 V) sin (310 t) is applied to a series RLC circuit. If R = 46 ?, C = 29 µF, and L = 0.27 H, find the impedance of the circuit
A spacecraft is in orbit around a planet. The radius of the orbit is 3.2 times the radius of the planet, What is the period of the spacecraft's orbit
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