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A 13 g bullet traveling 222 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 159 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
In a typical living cell, the electric potential inside thecell is 0.070 V lower than the electric potential outside the cell. The thicknes of the cell membrane is 010 μm. What is the magnitude and direction of the electric fieldwithin the cell me..
An ideal refrigerator does 140 J of work to remove 585 J of heat from its cold compartment during each cycle. How much heat per cycle is exhausted to the kitchen
A string 120 cm long with a linear mass density 10^-2 kg/m is stretched to a tension of 36 N. The string is attached between two walls and when plucked forms a standing wave with 3 antinodes. Find the frequency of vibration. A standing wave pattern c..
During one cycle a heat engine transfers 4 X 103 J of heat from a hot reservoir and exhausts 2.4 X 103 J to a cold reservoir. How much work is performed by this engine in one cycle
One yoga exercise, known as the "Downward-Facing Dog," requires stretching your hands straight out above your head and bending down to lean against the floor. Find the normal force that the floor exerts on each foot
A -3.41 nC point charge is located at the center of a conducting spherical shell. find the surface charge density on the outside surface of the shell
A weight is suspended from two ropes, one of which makes an angle #1 = 35 degrees and angle 2 = 155 degrees measured form the horizontal, Find the tension in each of the two ropes
A series RCL circuit includes a resistance of 291 ?, an inductive reactance of 685 ?, and a capacitive reactance of 409 ?. What is the voltage of the generator
An elevator cabin has a mass of 350.5 kg, and the combined mass of the people inside the cabin is 183.7 kg. obtain the tension in the cable
A motorcycle has a constant speed of 23.0 m/s as it passes over the top of a hill whose radius of curvature is 149 m. Find the magnitude of the normal force that acts on the cycle
Assume unpolarized light of intensity 197 W/m2 falls on the polarizer in the figure, and the angle in the drawing is 37.0°. What is the light intensity reaching the photocell?
An alloy is made of 30% gold, 20% silver and iron. The specific heats of gold, silver and iron are 0.0308, 0.056 and 0.107 cal/go C, respectively. Calculate the specific heat of the alloy
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