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The crew of a rocket that is moving away from the earth launches an escape pod, which they measure to be 50 meter long. The pod is launched toward the earth with a speed of 0.55c relative to the rocket. After the launch, the rocket's speed relative to the earth is 0.85c. Determine the length of the escape pod as determined by an observer on earth?
A 75 kg man is riding an escalator in a shopping mall. Theescalator moves the man at a constant velocity from ground level tothe floor above, What is the work done on the man
An electromagnetic wave strikes a 1.69-cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is4.84 x 10-4 T. How long does it take for the wave todeliver 1120 J of energy to the wall?
vector identiteis can be proven by grinding them out in component form but it is more satisfying to use methods based
The ends of a thin bar are maintained at differenttemperatures. The temperature of the cooler end is 13°C, find the length of the bar
Your spaceship lands on an unknown planet. To determine the characteristics of this planet, Express the planet's mass in terms of the earth's mass
Water is circulating through a closed system of pipes in a two floor apartment. On the first floor, the water has a gauge pressure of 3.4 x 105 Pascal and s speed of 2.1m/s. Find the gauge pressure of the water on the second floor
A converging lens of focal length 19.2 cm is separated by 55.3 cm from a converging lens of focal length 4.72 cm. If the height of the object is 3.10 cm, what is the height of the final image
A 3 kg block is observed to accelerate at a rate twice that of the 6 kg block. Is the net force acting on the 3 kg block therefore twice as large as that performing on the 6 kg block? Explain.
A 53-kg womancontestant on a reality television show is at rest at the south endof a horizontal 149-kg raft that isfloating in crocodile-infested waters. She and the raft areinitially at rest.
A woman on a rocket traveling at 0.82c (with respect to Earth) observes a meteor come from in front of her and pass her at 0.85c
a positively charged particle with a charge of 8.65pc is suspended in equilibrium in the electric field between two
If a pendulum is oscillating at an angle Φo=60 degree, compute by what percent the period deviates from its small angle limit
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