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An electron moving parallel to the x axis has an initial speed of 4.06 x 106 m/s at the origin. Its speed is reduced to 1.12 x 105 m/s at the point x = 2.00 cm.
(a) Calculate the electric potential difference between the origin and that point.
A 6.43 kg ball is thrown upward with an initial speed of 14.34 m/s. Ignore air resistance when answering the following questions. What is the ball's initial kinetic energy
there are four charges each with a magnitude of 1.88 microc. two are positive and two are negative. the charges are
A 1 kg wheel (hoop) rolls 5 rev. across a horizontal surface (without slipping)a distance of 3.2 m. if the wheel rolls for 3 sec. determine the angular velocity of the wheel
2.0 kg of water at 14 C is mixed with 2.0 kg of water at 53 C in a well-insulated container. Estimate the net change in entropy of the system
questiona 1000-kg car moves at an utmost speed so that it does not skid off the 50-m radius level track. if coefficient
question1an inkjet printer letters are built up by squirting drops of ink at a paper from a rapidly moving nozzle. the
A combination lock has a 1.5 -diameter knob that is part of the dial you turn to unlock the lock. What is the most torque you can exert on the knob
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.7 m/s2 for 4.5 seconds. What is the acceleration of the blue car once the brakes are applied
A cylindrical copper cable carries a current of 1090 A. There is a potential difference of 1.60 10-2 V between two points on the cable that are 0.28 m apart
A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 6.93 103 W. How much energy does it extract from the outside air
Suppose you form a dipole from two point charges (with a magnitude of charge, q). the postive charge is located at the point x=y=0, z=d/2. and the negative charge is located at x=y=0, z=-d/2.
at the science olympiad competition a group of middle school students uses a trebuchet that launches a tennis ball from
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