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Light enters the curved surface of a semicircular block filled with an unknown liquid. This block is surrounded by air. The incident angle is 25.0o. A screen is 3.20 cm away, and the refracted light strikes the screen 2.80 cm above the normal. What is the index of refraction? At what angle would the light ray be totally internally reflected? You may find a drawing of the situation helpful.
Two charges q = +8.0 µC are fixed a distance d = 9.0 cm apart. You bring a third charge q = +8.0 µC from infinity to C. How much work must you do
An LRC series circuit with R= 150 ohms, L= 25 mH and C= 2 mF is powered by an AC voltage source of peak voltage Vo= 340 V, Determine the peak current that flows in this circuit
A skier starts down a 35? slope. After a vertical drop of 31m , the slope temporarily levels out and then drops at 18? an additional 39m vertically before leveling out again. What is the skier's speed on the lower level stretch
A bag of intravenous (iv) infusion is help up at 80 cm above the level of patient's veion, What is the downward force of the saline solution on the clot at the tip of the catheter
A spring is stretched between two posts. When a pulse is produced at one end of the spring, it makes 4 back-and-forth trips along the spring in 3.4 s. If the pulse has a propagation speed of 12 m/s, how far apart are the posts?
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 12.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mole. (b) Imagine adding electrons to the pin until the negative charge h..
Suppose, you live in a place on the equator. There is a vertical rod of length 2m on your roof top. One morning, you went to the roof top and observed the shadow of the rod. If the length of the rod was 1m, then what time was that?
Determine the weight at standard gravity of 10.0 lbm in (a) lbf, (b) poundals, (c) dynes, and (d) newtons
The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 5.4 earth years. What is the asteroid's orbital radius?
A superball of mass 60g is dropped from a height of 2m . Itrebounds to a height of 1.80m. WHat is the change in its linear momentum
Find the linear speed that the bottom of the test tube must have in a centrifuge if the centripetal acceleration there is to be 51980 times the acceleration of gravity
Here is the familiar pair of carts connected by a spring. Determine what are the relative speeds of the carts when the spring is released
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