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A uniform electric field of magnitude 297 V/m is directed in the positive x direction. A +14.7 uC charge moves from the origin to the point (x, y) = (16.5cm, 52.3 cm). What was the change in the potential energy of this charge?
Through what potential difference did the charge move?
An 9.5 g ice cube at -10°C is put intoa Thermos flask containing 200cm3 of water at 20°C. Byhow much has the entropy of the cube-water system changed whenequilibrium is reached? The specific heat of ice is 2220J/kg·K.
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g%u2019s. what is the maximum allowed braking force
De-orbit maneuvers are done to lower the perigee of the orbit to 60 miles (or less). Calculate the minimum change in velocity (delta V) required for the Space Shuttle to decrease its altitude to 60 miles if its orbiting with an apogee of 236 miles..
A spool of wire of mass 6.9 kg and radius 0.28 m is unwound under a constant wire tension 15 N. Assume the spool is a uniform solid cylinder that rolls without slipping. Find the friction force on the bottom of the spool
An AC generator has 85 rectangular loops on its armature. Each loop is 13 cm long and 7 cm wide. What will be the maximum output voltage of this generator
Starting from rest, a car travels 1 350 meters in 1.00 minute. It accelerated at 1.0 m/s2 until it reached its cruising speed. What was its cruising speed
captain carmen fires a pistol at captain black but the lead ball misses and hits the oak mast. if the .05kg ball is
A Geiger tube consists of two elements, a long metal cylindrical shell and a long straight metal wire running down its central axis. Model the tube as if both the wire and cylinder are infinitely long.
What is the strength in air of the electric field at a radialdistance of 0.70-cm from the middleregion of a 6.0-m long straight wirecarrying a uniform charge of 375.0 µC
An old oaken bucket of mass 6.75kg hangs in a well a the endof a rope. What is the total work done on the bucket
At this depth, find what is the buoyant force on a spherical submarine having a diameter of 6.30 meter
a construction crew wants to extend a uniform rigid metal bar of length 7m and mass 400kg between two platforms which lie on the same horizonantally level. What force does the beam exert on the edge of the platform
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