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A μ (moun) moving by us at 0.60c is observed to decay into an electron and two neutrinos. The electron is given off in the forward direction. Its velocity with respect to the lab is 0.99 c. what is its velocity by respect to the muon? (Answer in terms of c to two sig.fogs)
Two identical spheres each carry a charge of -40.0 µC. The spheres are separated by a distance of 1.00 m. What is the electric force between the spheres
in an ionic solution 5.8 x 1015 positive ions with charge 2e pass to the right each second while 6.3 x 1015 negative
The merry-go-round is moving at a speed of 0.3 rev/sec when it shuts down. find the initial angular velocity of the merry-go-round
A freely falling object at Earth’s surface drops vertically 5 m in 1 s. Earth’s curvature “drops” 5 m for each 8-km tangent. Discuss how these two facts relate to the 8-km/s speed necessary to orbit Earth.
imagine you are standing in front of standard mirror. in order for you to be able to see a full-length view of yourself
In the figure below, the hanging object has a mass of m1 = 0.480 kg; the sliding block has a mass of m2 = 0.770 kg; and the pulley is a hollow cylinder with a mass of M = 0.350 kg, an inner radius of R1 = 0.020 0 m, and an outer radius of R2 = 0.0..
A space probe enters the thin atmosphere of a planet where the speed of sound is only about 35m/s. (a) What is the probe's Mach number if its initial speed is 15,000km/h (b) What is the angle of the shock wave relative to the direction of motion?
question a man lifts a 1.8 kg stone vertically.at some instant of time t1 during the beginning of the lift the stone is
In the deep ocean, a water wave with wavelength 95 m travels at 12 m/s. What will be the vertical position of the boat
A laser used to weld detached retinas emits light with a wavelength of 652{\rm nm} in pulses that are 20.0{\rm ms} in duration. What is the energy of one photon in electron volts
Tension is maintained in a string by attaching one end to a wall and by hanging a 2.06 kg object from the other end of the string after it passes over a pulley that is 2.12 m from the wall. What is the fundamental frequency of the string
In a head on collision, a 4,000 kilogram truck going 10 m/s east strikes a 1,000 kilogram automobile going 20 m/s west. Find how much kinetic energy was lost in the collision
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