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The electrons in a television picture tube are typically accelerated to an energy of 10,000 e V. Calculate the momentum of such an electron, and then use the de. Broglie relation to calculate its wavelength.
Calculate how far from the siren a person, with a threshold of hearing of 25.0 dB at that frequency, can be located to barely be able to hear the sound from that siren.
One goal of the Russian space program is to illuminate dark northern cities by sunlight reflected to the Earth from a200 m diameter mirrored surface in orbit. Several smaller prototypes have already been constructed and put into orbit.
a 2340 kg satellite used in a cellular telephone network is in a circular orbit at a height of 770km above the surface
A 65.0-kg snowboarder works on a half-pine event from top of one side of the semicircle (7.00 m radius) to the other side. What is the minimum work that the snowboarder has to do
After the collision, the blue puck has a velocity of 2i – 2j m/s. Illustrate what is the velocity of the gold puck after the collision?
reviews the concepts that are involved in this problem. A child is twirling a 0.0211-kg ball on a string in a horizontal circle whose radius is 0.0866 m. Determine the centripetal force acting on the ball
A square loop 2.00m on a side is placed in a magnetic field ofmagnitude 0.300 T. find the magnetic flux through the loop
each tire on a car has a radius of 0.330 m and is rotating with an angular speed of 15.5 revolutionss. find the linear
An earth satellite moves in a circular orbit with an orbital speed of 6200 m/s. Find the time of one revolution of the satellite
Rank the magnitudes of the forces exerted on the following particles from largest to smallest. In your ranking, display any cases of equality. (Use only ">" or "=" symbols. Do not contain any parentheses around the letters or symbols.)
A 40 kg artillery shell was fired from a cannon with an initial speed of 84 m/s at a 45° angle above the ground. How far from the cannon (in m) did the lighter piece land
A 8.0 kg object undergoes an acceleration of 2.5 m/s2. What is the magnitude of the resultant force acting on it? If this same force is applied to a 16.0 kg object, what acceleration is produced?
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