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You want to design a spy satellite to photograph license plate number. Assuming it is necessary to resolve points separated by 5 cm with 550-nm light, and that the satellite orbits at a height of 130 km, what minimum lens aperture (diameter) is required?
the reason that massive neutrinos were considered as a candidate for solving the missing mass problem is that at the
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius 11.0 m. What is her speed as she goes through the dip
One side of the tank contains 0.01 m3 of refrigerant-134a that is a saturated liquid at 0.8 MPa, while the other side is evacuated. The partition is now removed, and the refrigerant fills the entire tank. If the final state of the refrigerant is 2..
A 2.4 kg mass is placed on top of a vertical spring. the spring is compressed 4.2 cm. What is the energy stored in the spring
An infinitely long thin wire carries a line charge density lambda=65 nC/m. Obtain the potential difference between points 2 m and 7 m on a perpendicular radius to the axis of the wire
a fire hose exerts a force on the person holding it. this is because the water accelerates as it goes from the hose
A golfer imparts a speed of 29.2 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. How much time does the ball spend in the air?
An electric dipole is formed from ±1.0nCcharges spaced 2.00mm apart, What is the electric field strength at the points (x, y) = (14.0 cm , 0 cm),(x, y) = (0 cm, 14.0 cm)
A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element. How much heat is necessary to boil all the water away
A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is i..
A sheet of glass is coated with a 496 nm thick layer of oil (n = 1.42). What is the color of the most part of transmitted light
Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a resistance of 0.874 ohm. What is the resistance of the copper wire? Take the resistivity of copper to be 1.72 times 10-8 ohm m, and that of aluminum to be..
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