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Cosmic rays interacting with the earth’s upper atmosphereproduce muons that decay with a mean lifetime of2.20x10-6 s as measured in the frame of reference of the muon. If the muon is moving at 0.990c relative to the earth,what will an observer on earth measure its lifetime to be?
An elevator moves downward in a tall building at a constant speed of 4.00 m/s. Estimate the highest floor from which the bolt can fall if the elevator reaches the ground floor before the bolt hits the top of the elevator
a bird is flying directly toward a stationary bird-watcher and emits a frequency of 1250 hz. the bird-watcher however
When B-10 is bombarded by neutrons, a neutron can be absorbedand an alpha particle emitted. If the B-10 target isstationary the kinetic energy of the reaction products is equal to Kinetic energy of incident neutron
An arteriole has a length of 1.25 mm and a radius of 21.9 ?m. The blood pressure drop along the arteriole is 1310 Pa. Calculate the resistance of the arteriole
Torque can be calculated by multiplying the force (N) applied at 90 degrees to the lever arm at a distance (m) from the pivot point (point of rotation), what is the torque on the lever
The energy provided each hour by heat to the turbine in an electric power plant is 9.5 x 10^12 J. If 6.5 x 10^12 J of energy is exhausted each hour from the engine as heat
A 0.250 kg ball attached to a string s being swung in a vertical circle, What is the minimum speed at the top of the circle to keep the string from going slack
what are the two steps for simplifying radicals? can either step be deleted? if you could add a step that might make it
From the difference in mass of a hydrogen atom to the mass of a proton and an electron, estimate the binding energy of the electron in the hydrogen atom. Compare this to the ionization energy of the ground state electron as calculated by the Bohr mod..
q1. the lines in a grating are uniformly spaced at 1520nm. analyse the angular separation of the second order bright
a near-sighted person might correct his vision by wearing diverging lenses with focal length 55 cm. when wearing his
why do you only report 2 sigfigs when calculating freezing point
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