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Question: A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 0.0065m/s2 less than that at sea level (gsealevel = 9.83 m/s2).
Part A: What is the observatory's altitude? Assume Rearth = 6.37 × 106 m.
Express your answer to two significant figures and include the appropriate units.
The structure of GaAs is the zinclende lattice. The lattice is 1 m. Calculate the density of valence electrons in GaAs
Using Gauss' Law, find the electric field (magnitude and direction) between the cylindrical shell and the rod. The electric field will depend on the distance r from the central axis of the solid rod. Find the amount of charge enclosed by the surfac..
Uniform rate of acceleration
two aluminum rods a and b are such that rod a has twice the length of rod b when they are at the same temperature. they
A 169 g cube of ice at0?C is dropped into 2.9 kg of water that wasoriginally at 79?C. What is the final temperature of the water after after the ice melts
An object of length 3 cm is inside a plastic block with index of refraction 1.40. If the object is viewed through the top surface of block at a non-zero angle from the normal, where is an object relative to its image.
Cyclotrons are often used to bombard Oxygen-18 with a proton to create Fluorine-18. Estimate the final velocity of the proton
The plates of a 7.4-µF capacitor have net charges of +0.83 µC and -0.83 µC respectively. Which plate is at the higher potential
A point source of light is submerged 3.58 m below the surface of a lake and emits rays in all directions. On the surface of the lake, directly above the source, the area illuminated is a circle. What is the maximum radius that this circle could have?
an astronaut on mars might lean over the edge of 25.0 meter tall spacecraft, How much time will it take for the package to strike the ground
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0â. what is his speed as he leaves the roof
A 200 g block hangs from a spring with spring constant 10 N/m. At t=0 s the block is 23 cm below the equilibrium point and moving upward with the speed of 125 cm/s. What are block's oscillation frequency? What is the block's distance from equilibri..
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