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Problem: A spaceship fires a laser cannon (i.e. photons which move at the speed of light=c) in the forward direction. If the spaceship is moving away from the earth at 20% the speed of light (0.2c),
Part A: How fast are the photons moving relative to the earth?
Express your knowledge to solve the above problem. Thanks.
An object acted on by three forces moves with constant velocity. Find the magnitude of the third force acting on the object
A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.00 s later. Find the depth of the well if the air temperature is 6.0°C
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a bare cubical reactor of side a 314.16 cm is operating at a steady state power of 200 mw. if the origin is taken at
How far does light travel in one year?( This distance is known as a light-year and is utilized in measuring astronomical distances)______km Approximately how long would it take for a telephone signal to travel 1000mi?( telephone signals travel at abo..
The drawing shows a top view of two circular coils of conducting wire lying on a flat surface. The centers of the coils coincide. In the larger coil there are a switch and a battery. The smaller coil contains no switch and no battery.
A second baseman tosses the ball to first baseman, which catches it at the same level from which it was thrown. The throw is made with an initial speed of 15 m/s at an angle of 38.0^circ above the horizontal. What is the horizontal component of ba..
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.400mm. What is the wavelength %u03BB2 of the second laser
Mike throws a ball upward & toward the east at a 10.0 angle with a speed of 57.0 m/s. find the ball's initial angle in Nancy's referance frame
a driver traveling at 59 kmh sees a chicken dash out onto the road and slams on the brakes. accelerating at -7 ms2 the
in a classical model of the hydrogen atom the electron orbits the proton in a circular orbit of radius 0.053 what is
a 3.59-f and a 5.68-f capacitor are connected in series across a 30.0-v battery. a 6.41-f capacitor is then connected
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