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An interferometer is used to measure the length of a bacterium. The wavelength of the light used is 650 nm. As one arm of the interferometer is moved from one end of the cell to the other, 315 fringe shifts are counted. How long is the bacterium?
A model rocket fired vertically from the ground ascends with a vertical acceleration of 3.2 m/s2 for 5.2 s. What is the maximum altitude reached
In a lightning bolt, a large amount of charge flows during a time of 2.1 x 10-3 s. How much charged has flowed during the lightning bolt?
q1. a 4.5 kg block starts at rest and slides a distance d down a frictionless 32.0 degree incline where it runs into a
A positive charge of 0.800? C is located in a uniform field of 9.00×104 N/C. How close are the two charges
An engine absorbs 1.69 kJ from a hot reservoir at 277 °C and expels 1.24 kJ to a cold reservoir at 27 °C in each cycle. What is the power output of the engine if each cycle lasts 0.298 s
A charged isolated metal sphere of diameter 20.0 cm has a potential of 9000 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere
Calculate how long it will take a ball to hit the ground if dropped from a height of 44 m,
A set of coupled pendula has m = 0:2kg for both masses, but k and l are unknown. At t = 0, the left hand mass is held at xL = 2:5cm and the right hand mass is held at xR = 0, Find the approximate values of k and l
A 300g ball on a 70cm -long string is swung in a vertical circle about a point 200 cm above the floor, What was the tension in the string an instant before it broke
A recantangular block of wood floats in a calm lake. Show, if friction is ignored, determine an equation for the force constant
A spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 3.10 × 1013 kg.m/s. Find the relativistic momentum of the spacecraft
The altitude of this luge track is 2237m. The altitude at the end is 2205 m. If a luger takes 48 seconds to complete a run, what is his average vertical velocity
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