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Question1
What is relative velocity (in meters per second) between an observer on earth and a galaxy where the H-beta line of Hydrogen is calculated to be 622 nm? (The wavelength of the H-beta line as considered at rest in the laboratory is 486 nm.)
Question2
How fast is typical oxygen molecule (with a mass of 5.31e-26 kg) traveling while it is at a temperature of 440 Kelvins?
Question3
Assume you wish to measure the mass of a planet. To do so, you place a test mass in orbit around planet at a distance of 6.6e+8 meters from the center of the planet. You discover that the orbital period is 2.1e+5 seconds. What is mass of the planet?
A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.00?C, What is the temperature on a spring day when the resistance is 216.0
A tungsten filament incandescent light bulb emits spherical electromagnetic waves of 50 Watts isotropically. What is the radiation pressure
A rocket of mass 4.5 105 kg is in flight. Its thrust is directed at an angle of 61.0° above the horizontal, Find the magnitude and direction of the rockets acceleration
A toy train rolls around a horizontal 1.5-m-diameter track. The coefficient of rolling friction is 0.13. What is the magnitude of the trains angular acceleration
An electric dipole of dipole moment = (5 × 10-10 C.m) is placed in an electric field = (2 × 106 N/C) +(2 × 106 N/C)
For someone who chooses y=0 to be 5 meteres above the ground and up as positive, what will he get for the potential energy
one of your classmate has a friend with a boat. here is your classmate on water-skis being towed. in the absence of friction your classmate (m=62kg) would accelerate at 2.23m/s^2.
An airplane has a mass of 3.0*10^6 kg and air flows past the lower surface of the wing at 96 m/s, how fast must the air flow over top of the wing
A load of bricks is being lifted by a crane at the steady velocity of Vo (= 5 m/s) when one brick falls of H (= 5m) above the ground. What is the greatest height above the ground that the brick reaches
An unstrained horizontal spring has a length of 0.33 m and a spring constant of 260 N/m. Determine the possible algebraic signs
Determine the linear (tangential) acceleration of the rim of the bicycle's wheels (in the reference frame of a cyclist riding the bike).
An air conditioner connected to a 129 V rms ac line is equivalent to a 17 capital omega resistance, What is the impedence of the air conditioner
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