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Light from the sun allows a solar cell to move electrons from the positive to the negative terminal, doing 2.4 x 10-19 J of work per electron. What is the emf of this solar cell?
A horizontal spring with a spring constant of 0.5 N/m sits on a frictionless table. what is the magnitude of the acceleration of the mass
An electron is fired with speed 2400 m/s into a region of uniform electric field with magnitude 8 N/C. how long will it take for the electron to come to a stop
q1. george of the jungle with mass m swings on a light vine hanging from a stationary tree branch. a second vine of
One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft of depth 83.0 m. What is the wave speed at the top of the rope
A light string can support a stationary hanging load of 24.6 kg before breaking. What range of speeds can the object have before the string breaks
A point charge is accelerated from rest through a potential difference of 150 V and gains a speed v initial. What speed (in terms of v initial ) would it gain if it were accelerated through 280 V instead
Analyse average density of the white dwarf
a space vehicle is moving at a speed of 0.85c with respect to an external observer. what is the speed of the project as seen by the external observer
John who is ice skating eastward collides with Mary who is ice skating northward. What was John's initial speed
A motorcycle, which has an initial linear speed of6.3 m/s, decelerates to a speed of 2.3 m/s in 4.9 s. What is the angular displacement (in rad) of each wheel
Assume that a spacecraft lands on an asteroid and bores a hole perpendicular to its surface, what is the circumference and radius of that asteroid
Illustrate what is the maximum height of each ball after the elastic collision? What are the coordinates of the CM of the two balls when the lighter ball was pulled up? Consider the heavier ball to be at the origin before the collision.
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