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A fellow astronaut passes by you in a spacecraft traveling at a high speed. The astronaut tells you that his craft is 20.0 m long and that the identical craft you are sitting in is 19.0 m long. According to your observations, (a) how long is your craft, (b) how long is the astronaut's craft, and (c) what is the speed of the astronaut's craft relative to your craft?
A crate is dragged 3m across a rough floor at a constant speed by a worker applying 500N at an angle of 30 deg above the horizontal. How many forces act on the crate
A tall, slender drinking glass with a thin base is initially empty. Where is the center of mass of the glass
Spaceship A moves away from earth at a velocity of uxA= -0.50 c and spaceship B at uxA= 0.70c, uyB= -0.20c uzB=0.30c. How fast is B's velocity in A's reference frame
A long horizontal wire carries a current of 48 {rm A}. A second wire, made of 2.6 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 {rm cm} below. Examine the magnitude of the current in the lower wire.
You are standing on a platform and you throw a 5kg ball horizontally with a speed of 10m/s. Find the time it takes the ball to hit the ground
A parallel plate capacitor has a capacitance of 9.4 ?F when filled with a dielectric. What is the dielectric constant of the dielectric
A sphere, a solid cylinder and a thin-walled hollow cylinder all have the same mass and radius. Which one reaches the bottom of the incline first
Find out the speed of the satellite
The nucleus of a ^125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q = + 54e.
When the door of the Chapel of the Mausoleum in Hamilton, Scotland, is slammed shut, If that echo were due to a single reflection off a wall opposite the door, how far from the door would that wall be
Experience shows that from one third to one half of the passengers in an airliner can be expected to suffer motion sickness, What is the amplitude of the motion
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them. What is the speed of the second train
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