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You are using a standard microscope with a 0.10NA 4x objective and switch to a 0.65NA 40x objective. What are the acceptance angles for each? Compare and comment on the values. Which would you use first to locate the target area on of your specimen?
A 14.0-m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 63deg angle with the horizontal. what is the coeffecient of static friction between ladder and ground
David is driving a steady 21 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.20 m/s^2 at the instant as David passes.
Illustrate what is the smallest angle of incidence with respect to the top mirror, such that the laser beam hits the mirrors in each way?
A space ship travelling at speed 0.5c toward the earth ejects a spacepod travelling in a forward direction at a speed of 0.25c, what is the speed of light signal relative to the spaceship in term of c
A stationary whistle emits a sound of 188Hz. If passengers in a car hear the whistle with a frequency of 198 Hz, how fast was the car moving? Make use of 340 m/s for the sound velocity.
A properly motivated kangaroo can jump over an object. what is the velocity of the kangaroo, just when it returns to the ground
the moon has an angular size of .5degrees when viewed with unaided vision from earth. what is the angular size of the moon as seen through this telescope
There are four coils of wire being used as electromagnets. They all have the equal size and are made up of the same material but have a different number of loops.
Sketch a graph of maximum kinetic energy, KE max against visible light frequency, v for this experiment Label threshold frequency Vc.
Determine the maximum charge per area that can be stored on a parallel plate capacitor if the region between the plates is filled with silicon oil
A radio telescope, whose two antennas are separated by 55 , is designed to get 3.0- radio waves produced by astronomical objects.
A friend is standing on a giant skateboard that is initially at rest. If you avoid frictional effects with the floor, what is the momentum of the skateboard if your friend walks to the right on skateboard with a momentum of 150 kg.m/s? What is the..
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