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An astronaut is traveling in a space vehicle that has a speed of 0.520c relative to Earth. The astronaut measures his pulse rate at 77 per minute. Signals generated by the astronaut's pulse are radioed to Earth when the vehicle is moving perpendicularly to a line that connects the vehicle with an Earth observer.
Evaluate the pulse rate does the Earth observer measure? min-1
Evaluate what would be the pulse rate if the speed of the space vehicle were increased to 0.910c?
min-1
A monoatomic gas is contained in a vessel from which it leaks through a fi ne hole of area A. Show that the average kinetic energy of molecules leaving through the hole is 2kBT.
Using thermogravimetric curve we can relate the mass changes to the stoichiometry involved. calculate the percentage weight loss for the following compounds when they are heated at uniform rate in thermogravimetric analysis.
A panicular spring has a spring constant of 86 N/m and a mass of 0.548 kg at its end. When the spring is driven in a viscous medium, find the damping parameter due to the viscous medium
A car is traveling at 66.2 mph. The driver applies the brakes and the car decelerates at 1.3 m/s2. What is the stopping distance
nbspa proposed solar collector installation has a frontal area exposed to the sun of 50.0 m2 and combines a
Suppose the image of an object is upright and magnified 1.69 times when the object is placed 14cm from a lens
Suppose the act of throwing the tool takes the austronaut 0.7 seconds, that is she applied a force to the tool before it leaves her hand. What velocity toward the space shuttle will that have given her? And if she was 12m away from the shuttle to sta..
a 0.144 kg baseball is moving towards home plate with a speed of 43.0 ms when it is bunted. the bat exerts an average
A surveyor is using a magnetic compass 5.8 m below a power line in which there is a steady current of 88 A. What is the magnetic field at the site of the compass due to the power line
An ideal monatomic gas expands isothermally from 0.600 m3 to 1.25 m3 at a constant temperature of 600 K. If the initial pressure is 1.10 105 Pa. Find the work done on the gas
question consider a rectangular loop of wire 6.3 cm by 8.2 cm in a uniform magnetic field of magnitude 1.7 t. the loop
a 70 kg hockey player sliding freely on his knees on horizontal icy surface with velocity m/s. find the velocity of the player after he catches the puck
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