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A bullet with a mass of 80 g is fired horizontally and imbeds itself into a bag of sand having a mass of 25 kg as it hangs from a 2 m long cable. After impact the cable swings through angle θ= 20o. Determine the initial velocity of the bullet.
What if the plug were iron and the ring brass? A brass plug is to be placed in a ring made of iron. At 20 C, the diameter of the plug is 8.787 cm and that of the inside of the ring is 8.777 cm. They should both be brought to what common temperature i..
A classroom slide projector projects an enlarged (55 times taller) image of a 24 mm high photographic film onto a screen located 10 meters from the projector. What focal length lens (cm) does slide projector require to produce a sharply focus imag..
On a banked race track, the smallest circular path on which cars can move has a radius of 119 m, while the largest has a radiusof 173 m, as the drawing illustrates. The height of the outer wallis 10.8 m. Find (a) the smallest and(b) the largest speed..
Consider a circuit with a main wire that branches into twoother wires. If the current is 10 amperes in the main wire and 4amperes in one of the branches, how much current is in the other branch
1. What are the differences between PSK and DPSK 2. What device can be used for generation of FSK signal
Suppose that subsequent to this heating, 2.00 104 J of thermal energy is removed from the gas isothermally. Find the final volume in terms of the initial volume of the example
When 3825 J of heat are added to a 0.14-m-long silver bar, its length increases by 4.59 10-3 m. What is the mass of the bar
Assume that the aorta branches to form a large number ofcapillaries with a combined cross sectional area of 3.0*10^3 cm^2. What is the flow speed in the capillaries?
The polar ice caps contain about 2.3×?10?^19 kg of ice. Estimate the change in the length of the day that would be expected
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1360 Hz. The bird-watcher, however, hears a frequency of 1430 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
a mass m orbits around a planet of mass m in a parabolic orbit of the form y x24l which has focal length l. find the
a steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. the
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