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An object is moving with constant acceleration. During 24 s of the motion the object traveled 40 m and during the same 24 s the object speedincreased 4 times. Calculate the acceleration.
Two hydrogen atoms travelling at the same speed collide headon. The collision brings both atoms to a halt. Immediatelyafter the collision each atom emits a 121.6 photon. What was thespeed of each atom just before the collision?
A Galaxy is moving away from us with a speed of 3 x 10^7 m s^-1. What is the frequency of the light we would observe if it is emitted at 6 x 10^14 Hz
On a typical mission, the Space Shuttle (m = 2.00 106 kg) orbits at an altitude of 250 km above the Earth's surface. Find the speed of the shuttle in its orbit.
The wave function for a wave on a taut string is y(x,t) = 0.355 sin [(9)(pi)(t) - (3)(pi)(x) + (pi/4)], where x and y are in meters and t is in seconds. What is the energy contained in each cycle of the wave
Radioactive isotopes often occur together in mixtures. Suppose a 290g sample contains 131Ba, with a half-life of 12 days, and 47Ca, with a half-life of 4.5 days.
An atom in a solid vibrates at 13 THz with amplitude 13 pm. Find the atom's maximum acceleration
A battery with an emf of 32 volts and internal resistance of 22 ohms is connected to a 25 watt light bulb. Calculate the acual terminal voltage across the battery
A light ray with an incident angle of 38.5 degrees crosses from air to a solution and has an angle of refraction of 21.9 degrees. What is the speed of the ligth ray in the solution
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.56 m radius and is 1.8 m high. The walls are 1.0 cm thick.
7.4 mol of helium are in a 16 L cylinder. The pressure gauge on the cylinder reads 68 psi. calculate the average kinetic energy of a helium atom
If the cardiac output of a small dog is 4.05 x 10-3 m3/s, the radius of its aorta is 0.516 cm, determine the pressure drop across the aorta of the dog
In photo like the Hubble Deep Field, we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives.
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