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What is the potential difference between two parallel plates if a 42.2 μC charge gains 3.7 x 10-4 J of electric potential energy when moved from one plate to the other?
The flywheel of an engine has a moment of inertia 2.40- {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
A 50-kg diver steps off a 10-meter high platform at the local pool. She comes to rest 3.0 meters below the surface of the water
A photon of red light (wavelength = 720 nm) and a Ping-Pong ball (mass = 2.00 × 10-3 kg) have the same momentum
A car of mass 1500 kg rounds a circular turn of radius 27meter. how fast can thecar travel without skidding
two 491 g blocks of wood are 1.63 m apart on a frictionless table. a 10.67 g bullet is fired at 415 ms toward the
an ocean liner leaves new york city and travels 16.0deg north of east for 245 km. how far east and how far north has it
A parallel plate capacitor has a capacitance of 1.20 nF. There is a charge of 0.80 pC on each plate. How much work must be done by an external agent to double the plate separation while keeping the charge constant?
One 20-year-old twin brother takes a space trip with a speed of0.80c for 30 years according to a clock on the spaceship. Upon returning to the Earth, what is his own age and the age of the Earth-based twin brother?
What is the magnitude of the external force essential to hold a 2 kg cart motionless at the top of a 2m high incline which is 30 degrees.
A person with a near-point distance of 37 cm is able to get a usable magnification of 15 with a particular magnifying glass. What is the friend's near-point distance
for a glass lens (n=1.50), the focal length in the air is 10 cm and an object places on one side of it creates an image that is smaller, find the new position of the image and fully describe it
Ted is traveling on his railroad car (length 30 m) at speed v = 0.6 c as shown in the figure. As measured on Alice's clock, how long does it take for Ted's railroad car to pass Alice
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