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Light of wavelength 4.80 102 nm illuminates a pair of slits separated by 0.270 mm. If a screen is placed 2.10 m from the slits, determine the distance between the first and second dark fringes.
mm
What is the final temperature when .032kg of milk at 11C is added to .16 kg of coffee at 91C. suppose the specific heat capactieis of the two liquids are the same as water, and disregard any energy transfer to the liquid's surroundings.
A 78-kg base runner begins his slide into second base when he is moving at a speed of 4.2 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches base.
A skydiver opens the parachute at the moment when he is 540 meters above the ground and his speed (right before opening the parachute) is 97m/s. What should be the magnitude of the air resistance force
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 2.70 m/s upward. How long does the cork remain in the air
An archer puts a 0.54 kg arrow to the bowstring. An average force of 202 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 7.18x10-2 kg/s. What is the speed at which gasoline moves through the fuel line
By what factor must the mass of the ice be increased if the system is to have the same final temperature?
When two sticks are laid end-to-end they cover a length of 8.32 feet. One stick is 2.90 ft longer than the other. What is the length of the shorter stick in feet.
A metallic sphere has a charge of +4.2 nC. A negatively charged rod has a charge of -6.0 nC. When the rod touches the sphere, 9.8 109 electrons are transferred. What are the charges of the sphere and the rod now?
A ball is dropped from rest from the top of a building of height h. What is the height of the two balls when they are passing
Examine whether it is reasonable to ignore the effects of gravity for each particle. Evaluate the paths travelled by electron and proton and explain the differences.
if system A has 4 cycles/pulse and is operating at 5 MHZ and system B has 5 cycles/pulse and is operating at 10 MHZ, which system has the shorter pulse duration
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