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A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 255 keV. What was the energy of the photon? What was the wavelength of the photon?
The bullet passes right through and emerges on the other side with a speed of 100 m/s, and the saxophone is given a speed of 4.8 m/s.
Illustrate what are his weight and mass on earth and in interplanetary space where there are no nearby planetary objects?
A narrow beam of light with wavelengths from 450 nm to 700 nm is incident perpendicular to one face of a 40.00 degreee prism made of crown glass
A 878 kg car has four 11.8 kg wheels. When the car is moving, what fraction of the total kinetic energy of the car is due to rotation of the wheels about their axles
A 2.10-cm-high object is situated 16.9 cm in front of a concave mirror that has a radius of curvature of 9.91 cm. compute the location and the height of the image
my friend bob takes a leisurely stroll at a constant speed of 1.2 m/s for 8.5 mins to the south then jogs at a constant speed of 2.7m/s for 6.3 mins to the south
How much charge passes through the hair dryer. Find the magnitude of the magnetic field at the center of the square.
Points A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the electron is released from rest at point B, however, its kinetic energy when..
question1a ball of mass 10 kg and a ball of mass 1000 kg are ?oating in empty space connected by a spring of negligible
Two violin strings are tuned to the same frequency, 294 rm/hrz. What will be the beat frequency heard
a 15 kg box is skid down a 6 meter high ramp to pick up speed to do a veritcal loop-the-loop whose radius is 2 meters. What is the speed at the top of the loop-to-loop
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
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