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It is claimed that a black hole is so strong in its gravitational pull that even light cannot escape from it. However, if the speed of light, and gravitational forces are constant, then light should be able to escape from the black hole if it can escape from any massive body. Is there another way in which the "trapping" of light (photons) can be explained?
The drawing shows a coin resting on the bottom of a beaker filled with an unknown liquid. How fast is the light traveling in the liquid
If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, illustrate what distance would the bird cover? Express your answer in miles.
An electron of mass 9.11×10?31kg leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, Find the net force. (You can ignore the gravitational force on the electron)
When a falling meteor is at a distance above the Earth's surface of 2.82 times the Earth's radius, what is its free-fall acceleration caused by the gravitational force exerted on it
The position of a particle moving along an x axis is given by x = 14.0t2 - 3.00t3, where x is in meters and t is in seconds. find the maximum positive velocity reached by the particle
A simple ideal Rankine cycle which uses water as the working fluid operates it's condenser at 45 degrees C. determine Work produced by the turbine
In an experiment of centripetal force you have a rotating mass of 500 grams, which is at 5 cm from the axis of rotation. Calculate the angular velocity of the rotating mass
X-ray photons wit a wavelength of .22nm are scattered off free electrons at an angle of 45 degrees. What are the wavelength and the energy of the scattered photons
A source traveling to the right at a speed of 11.30 m/s emits a sound wave at a frequency of 104.0 Hz. The sound wave bounces off of a reflector, which is traveling to the left at a speed of 4.95 m/s. What is the frequency of the reflected sound w..
A photon with a wavelength of 5.90e-11 m is scattered by a loosely bound electron in a metallic target and exits at an angle of 135° from its original direction
A circuit is pulled with a 16N force toward the right to maintain a constant speed v. What is the direction of the induced current
Your are sitting in your car, which is standing at the side of the road with the engine idling. After what distance will you catch up with your classmate
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