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If there exists a perfect sphere of mass m and radius r it is accelerated on a straight line towards the speed of light. If there is instantaneous acceleration to 0.999999999c over a distance of L to a non-moving observer. What is the new r and mass of the particle while it traverses L.
Bubba has a tuning fork with a frequency of 445 Hz. Assuming the speed of sound in his lab is 350. m/s, what length tube is required to find the resonant point of his fork
in a youngs double-slit experiment the wavelength of the light used is 550 nm in vacuum and the separation between the
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of this the magnetic force
In the ground state of hydrogen, the uncertainty in theposition of the electron is roughly 0.10 nm. how fast is the electron moving
1 mole on an ideal gas is at a pressure of 10 atm and a temperature of 30C. What is the volume of that gas in cubic meters
You have a 1200W microwave. When you put a cup of water in for 8 minutes only half evaporates. How eficient is your microwave
Two equally charged insulating balls each weigh 0.40 g and hang from a common point by identical threads 45 cm long. The balls repel each other so that the separation between their centers is 6.6 cm.
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. find Which rate of rotation gives the greater speed for the ball
The Doppler effect using ultrasonic waves of frequency 2.27×10^6hz is used to monitor the heartbeat of a fetus. calculate the maximum velocity of the surface of the beating heart
What is your displacement after running 2.60 west on Strawberry Fields, 1.1 south on Penny Lane, and 5.0 north of east at 40 degree on Abbey Road.
a six lead-acid type of secondary cells each of emf 2.0 v and internal resistance 0.015nbspomega are joined in series
The current supplied by a battery in a portable device is typically 0.131 A. Find the number of electrons passing through the device
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