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An electron acquires 3.14 * 10-16 J of kinetic energy when it is accelerated by an electric field from plate A to plate B. What is the potential difference between the plates, and which plate is at the higher potential?
In preparation for this problem, review Conceptual Example 7. A space traveler whose mass is 115 kg leaves earth. What are his mass in interplanetary space where there are no nearby planetary objects
A hoodlum throws a stone vertically downward with an initial speed of 12.3 m/s from the roof of a building, 24.0 m above the ground. How long does it take the stone to reach the ground
Two positive point charges q1 = 12C and q2 = 48C are a distance 0.25 m apart. Find all the points where the total electric field is zero
q1. a stone of mass 0.31 kg is tied to a string of length 0.85 m and is swung in the horizontal circle with speed v.
During heavy rain, a section of a mountainside measuring 5.1 km horizontally, 0.78 km up along the slope, and 0.95 m deep slips into a valley in a mud slide. What is the mass of the mud sitting above a 3.6 m2 area of the valley floor
The period of the earth around the sun is 1 year and its distance is 150 million km from the sun. What is the orbital velocity of the asteroid
two charges and are located at the origin and at 0.45 0 respectively.where on the x-axis must a third charge of
In a tennis serve, a 0.070 kg ball can be accelerated from rest to 36 m/s over a distance of 0.75 m. Find the magnitude of the average force exerted by the racket on the ball
The Golden Gate Bridge in San Francisco has a main span of length 1.28 km, one of the longest in the world. At what temperature would the wire reach its elastic limit
A tight uniform string with a length of 1.80 m is tied down at both ends and placed under a tension of 100 N. What is the mass of the string
A person lifts a 950N box by pushing it up an incline. If the person exerts a force of 350N along the incline, what is the mechanical advantage of incline.
A 4.5kg ball with a velocity of 4.0m/s in the+x-direction collides head-on elastically with a stationary 1.8kg ball. What is the speed of the first ball after the collision
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