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A hunter who is a bit of a braggart claims that, from a distance of 1.8 km, he can selectively shoot eiither of two squirrels who are sitting 11 centimeters apart on the same branch of a tree. What's more, he claims that he can do this without the aid of a telescopic sight on his rifle. Determine the diameter of the pupils of his eyes that would be required for him to be able to resolve the squirrels as separate objects. In this calculation use a wavelength of 498 nm (in vacuum) for the light.
If 5.40 moles of a monatomic ideal gas at a temperature of 320 K are expanded isothermally from a volume of 1.41 L to a volume of 4.03 L
In a certain particle accelerator, a current of 0.5 mA is carried by a 5 MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
A spring is hung from the ceiling. A 0.600-kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
A bullet with mass 4.85 g is fired horizontally into a 1.965-kg block attached to a horizontal spring. The spring has a constant 6.29 102 N/m and reaches a maximum compression of 6.40 cm. Find the initial speed of the bullet–block system. m/s
What is the greatest angle of elevation
A stone is thrown diagonally upward with a vertical velocity of 23m/s and lands 83m away at the same height. What was the horizontal velocity
A car travels up a hill at a constant speed of 37 km/h and returns down the hill at a constant speed of 66 km/h. Calculate the average speed for the whole trip.
A converging lens of focal length 20 cm is used to form a real image 1.0 m away from the lens. How far from the lens is the object
in a standing wave pattern the distance between the second and the seventh nodes is 5cm. if the frequency is 300 hz
A somewhat longer cable replaces the old and is attached to the steel bar 5 m from its upper end, connecting to the same place on the wall as before and maintaining the same angle between the bar and the wall.
A thin soap film (n = 1.35) is suspended in air. The spectrum of light reflected from the film is missing two visible wavelengths of 490.8 nm and 589.0 nm, What is the thickness of the soap film
The wave function for a wave on a taut string is y(x, t) = 0.360 sin(8?t ? 3?x + ?/4) where x and y are in meters and t is in seconds. find the energy contained in each cycle of the wave
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