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A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, ten years have elapsed on earth, and 6.4 years have elapsed on board the ship. How far away (in meters) is the planet, according to observers on earth?
a projectile is launched from the ground with an initial speed of 30 m/s at an angle of 40 degrees with respect to the horizontal. How far down range will the rocket have traveled
a .450 kg bead slides on astraight frictionless wire with a velocity of 3.50 cm/s to the right. find the distance the larger bead moves along the wire in the first 9seconds after the collision
How fast can this car round a second curve of radius 320m?
Discuss thermometers, absolute temperature, thermal joints inthe bridges, and thermostats in houses. In this discussion question, do not be limited merely by theexamples presented in the discription. Note that the spiritof the question is the expl..
At rest when constructed, the ring is set rotating about its axis so that the people inside experience effective free-fall acceleration equal to g. The rotation is achieved by firing two small rockets attached tangentially to opposite points on the r..
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. How do the two sets of values compare
1.4m/s is a typical walking speed. At what temperature would nitrogen molecules have an rms speed of 1.4 m/s
snowballs are thrown with a speed of 18 ms from a roof 9.0 m above the ground. snowball a is thrown straight downward
An astronaut is traveling in a space ship that has a speed of0.99c relative to the Earth. What pulse rate does the Earth observer measure
A parallel plate capacitor has a voltage of 111V appliedacross its plates, then the voltage source is removed. What is the voltage across its plates
A beam of neutrons with a de Broglie .250 nm diffracts from a crystal from a crystal of table salt, what is the speed of the neutrons
The average density of the planet Uranus is 1263 kg/m3. Calculate the average radius of Uranus
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