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1) When light bends as it enters a different medium the process is known as what?
2) A magnifying glass is what type of lens?
3) Electric resistance is typically measured in what units?
4) A person who studies physics is known as a?
5) Metals expand when heated and do what when cooled?
Four identical particles, each with mass m and charge Q, are initially at the four corners of a square with side a. What is their speed when they are a large distance apart
The electric field is measured all over the surface of a cylinder whose diameter is 8 cm and whose height is 20 cm, as shown in the diagram. What is the net electric flux on this surface?
At what angle must the cannon be fired
Water is moving at a speed of 7.55 m/s through a fire hose with an internal diameter of 5.99 cm. What is the diameter of the nozzle
The terminal speed of a free falling object ball is vt. When the ball is supported by a light elastic spring the spring stretches with an amount x. Show that if the linear law of air resistance acts to damp the oscillation, the natural frequency of o..
The woman walks West for 15 minutes and travels a distance of 0.6 km, she then turns North and walks 0.4 km in 15 minutes. What is the womans average velocity
a steam pipe is covered with 1.50 cm thick insulating material with a thermal conductivity of 0.200
A Carnot engine has an efficiency of 0.610, and the temperature of its cold reservoir is 376 K. Decide the temperature of its hot reservoir. If 5320 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine?
As shown on the right, a uniform boom with a mass of 30.0 kg and a length of 2.00 meters is suspended at its left end by a low friction bearing and supported at its right end by a low mass horizontal steel wire of diameter 4.00 mm. A 20.0 kg mass ..
A plastic pipe has an inner radius of a = 35.00 cm and an outer radius of b = 60.00cm. Electric charge is uniformly distributed over the region a
A sports car starts from rest on a circular track of radius 690 meter. The car's speed increases at the constant rate of 0.400 m/s2. Determine the speed of the sports car
From 2 meters inside the water, a fish sees the Sun at an apparent angle of 60.0° above the horizontal. What is the actual elevation angle of the Sun
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