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A terrestrial telescope (a "spyglass") by a diameter of 2.5cm is attached to a rifle and used for target practice with targets that are 330 m away. What is the smallest feature on the target that can be resolved by this telescope? Suppose λ = 500 nm. Ignore the effect of the Earth's atmosphere on the resolution.
A solid block is suspended from a spring scale.When the block is in air the scale reads 35.9 N, when immersed inseawater the scale reads 30.3 N, What is the density of the block
A 22.29 g ball of clay traveling east at 3.83 m/s collides with a 44.01 g ball of clay traveling north at 4.28 m/s. What is the speed of the resulting 66.3 g ball of clay
A car weighing 1.09 104 N is at rest on a 30.5° incline. Each wheel bears an equal part of the car's weight. Find the frictional force exerted by the road on each wheel
One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 145 N. What is the radius of the brass ball
a person looking out the window of a stationary train notices that raindrops are falling veritcally down at a speed of
A pipe is opened at both ends. Its length is 22.81cm. If i excite standing waves in the pipe by blowing air over one of its ends, I hear a pitch of 712.5 Hz. a) find the distance between the antinodes at the two ends of the pipe.
A 210 g block is pressed against a spring of force constant 1.30 kN/m until the block compresses the spring 10.0 cm. determine how far up the incline the block moves
at rest, a light source emits 532 nm light. as it moves along a line connecting it and Earth, observers on Earth measure the wavelength to be 412 nm. What is the sources velocity and direction? Were it to move in opposite direction at the same spe..
A piano is brought upstairs by two workers. Due to a mistake by one of the workers, the piano rolls down the stairs and finally comes to rest by the outside door.
To stretch a certain spring by 2.90cm from its equilibrium position requires 7.50J of work. What is the maximum force required to stretch it by that distance
a balloon filled with one liter of air is tied to a brick and dropped from a height of 4600m above sea level. what will be the volume of the baloon when it reaches sea level
Two microscope slides are stuck together and touching on one side where n=1.2 and wedged open on the other where n=1.5. These slides sit in air. How many fringes are there for the same slide configuration when it sits in water rather than air
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