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Capacitor A and capacitor B both have the same voltage across their plates. However, the energy of capacitor A can melt mkilograms of ice at 0 °C, while the energy of capacitor B can boil away the same amount of water at 100 °C. The capacitance of capacitor A is 9.0 oF. What is the capacitance of capacitor B?
Please note that for water, the latent heat of fusion is Lf = 33.5 x 104 J/kg, and the latent heat of vaporization is Lv = 22.6 x 105 J/kg
The projection lens in a certain slide projector is a single thin lens. A slide 23.6 mm high is to be projected so that its image fills a screen 1.87 m high. Determine the focal length of the projection lens
In a local bar, a customer slides an empty beer mug down the counter for a refill, With what velocity did the mug leave the counter
a disk of radius 1.2 cm has a surface charge density of 7.0 microcm2 on its upper face. what is the magnitude of the
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 16.1 s. How tall is the tower
A tank is 2m above the connection to the water controls. The water then travels up a vertical pipe to the shower head 3.5m above the water controls. Determine the water pressure at the shower controls
The hole on a level, elevated golf green is a horizontal distance of 125 m from the tee and at an elevation of released 10.4 m above the tee, What was the initial speed of the ball
A 51.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 120 kg football players at a height of 1.00m, what is the diameter of the football players' piston
Two skaters are studying collisions on an ice-covered(friction-less) lake. Skater 1, (m1=85 kg) is initiallytraveling with a speed of 5.0 m/s, and skater 2 (m2=120kg) is intially at rest. Skater 1 then "collides" with skater 2 and they lock arms an..
A spaceship is visiting Planet X. While descending to the surface,its rockets produce 25 kN of upward thrust and the spaceship%u2019s speed decreases at a rate of 0.15 m/s2. What is the mass of the spaceship
Two otherwise identical bodies have temperatures of 330K and 3000K , respectively. By what factor does its emission exceed the emission of the other body
question1two towers have heights of 420 m and 565 m. if objects were dropped from the top of each what would be the
Ball 1, with a mass of 140g and traveling at 11.0m/s , collides head on with ball 2, which has a mass of 310g, What are the final velocities of each ball if the collision is perfectly inelastic
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