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A bug is hovering in the air (v=0) when a heavy automobile, moving at 20 m/s, suddenly collides with it. Ig the collision is perfectly elastic then what is the bug's speed after the collision? Include simple before and after diagram.
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Question: Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.400 mm wide. The diffraction pattern is observed on a screen 3.45 m away. Define the width of a bright fringe as the distance betw ...
Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55 ?C What is the potential difference between the plates? If the charge is kept constant, what will be the potential di ...
Question: One of the most worrisome waste products of a nuclear reactor is plutonium 239 ( 239 Pu). This nucleus is radioactive and decays by splitting into a helium-4 nucleus and a uranium-235 nucleus ( 4 He + 235 U), ...
Question: A sled of mass m is being pulled horizontally by a constant upward force of magnitude F that makes an angle theta with the direction of motion. The coefficient of kinetic friction is mu_k. The average velocity ...
In raising a 6400-N piano with a pulley system, the movers note that, for every 3.0 m of rope pulled down, the piano rises 0.26 m Ideally, find the force required to lift the piano. Express your answer to two significant ...
Problem: Sophia exerts a steady 50-N horizontal force on a 8.6-kg box resting on a lab bench. The box slides against a horizontal friction force of 27 N Part A Find the box acceleration. Express your answer to two signi ...
Question: A particle initially located at the origin has an acceleration of a= 2.00j m/s2 and an initial velocity of Vi = 7.00i m/s. (a) Find the vector position of the particle at any time t (where t is measured in seco ...
Reactions with little or no activation energy are the least affected by temperature. Why? If the reaction had NO activation energy would it be affected at all by temperature?
Question: A small object A, electrically charged, creates an electric field. At a point P located 0.250m directly north of A, the field has a value of 40.0N/C directed to the south. What is the charge of object A? If a s ...
Question: It is proposed that future space stations create an artificialgravity by rotating. Suppose a space station is constructed as a1000-m-diameter cylinder that rotates about its axis. The insidesurface is the deck ...
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