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A 12 DC power supply is connected to the primary coil of a transformer. What is the rms voltage across the secondary
sketch a scaled ray diagram and show the location of the iamge using 3 principle rays, calculate the magnification of the object
A 0.181-kg ball has an elastic, head-on collision with a second ball that is initially at rest. What is the mass of the second ball
A missile is shot straight up into the air. At the peak of its trajectory, it breaks up into three pieces of equal mass, What is the angle of the remaining piece
A radar device emits microwaves with a frequency of 1.86E+9 Hz. When the waves are reflected from a van moving directly away from the emitter, What is the speed of the van
Two large speakers broadcast the sound of a band tuning up before an outdoor concert. The speed of sound on this particular day is 336.2 m/s. how far must he walk between "loud" spots
An ambulance driver traveling at 33.0 m/s honks his horn as he sees a motorist ahead on the highway, Calculate the proper frequency of the ambulance's horn
A man strikes a long aluminum rod at one end. Another man, at the other end with his ear close to the rod, How long is the rod
What is the angular momentum of the moon about the Earth, The mass of the moon is 7.35 x 10^22 kg, the center-to-center separation of the Earth
While crossing campus you get your directions mixed up. You start traveling 278 m East; you then travel 101 m traveling 37 North of East, What is your final distance from where you started
Glycerine in water diffuses along a horizontal column that has a cross-sectional area of 2.2 cm2. Determine the diffusion coefficient
Sources A and B emit long-range radio waves of wavelength 340 m, What is the magnitude of the phase difference at the detector
A sticky hockey puck slides along a frictionless horizontal ice surface at 75m/s in the + x-direction. what is the angle of their final velocity vector below the +x direction
The air inside a bicycle tirenpumphas 202 joules of work done on it as 66.1 joules of heat is conducted away from it
What is the resolving power of the objective if it is used in an oil-immersion microscope with n oil = 1.45
A bungee cord is stretched between two poles with a force of 411 N. What is the velocity of a wave on this bungee cord
A statue is found in an Archaelogical dig. Its weight is measured to be 96 lb and its volume 0.08ft3. What is the statues weight density
In a double slit experiment there are two plane monochromatic waves incident on the slits. One wavelength is red with lamba= 600.0 nm, Calculate the linear separation of the red fringes
A metal object has a net charge of 1.761 x 10-12 C. How many excess or missing electrons does it have
A spinning object has a moment of inertia of 1.6 kg*m2. It is rotating at a rate of 1rad/s. If the moment of inertia increases to 3 kg*m2, what is the new rotational velocity
Suppose an electron is accelerated from rest through a difference in potential of V = 4.6 V. Find the speed of the electron after the collision
A cannon is aimed at an angle of 30 degrees above the horizontal. It fires a cannonball into the direction of a valley with a muzzle velocity of 100m/s. What is the maximum height of the ball
Suppose the work function for a particular metal is 5.09 eV. Find the cut-off frequency for this metal
Suppose a spaceship runs out of fuel near a star. The crew erects a square, white sail 7.06 km on a side, Find the temperature of the star's surface
A 1000 watt hair dryer is connected to 120 V source. Find the current drawn by the hair dryer