At a speed of 0.95c, a spacecraft is veering to the right. For the benefit of the physicists at the Earth-based observatory, a banner with a length of 2 meters and a width of 1.5 meters is strung out the bottom of the spacecraft. (a) How long will the physicists measure the banner? A lengthy amount of time must be spent in rolling up this banner due to its breadth. Because it takes around 300 seconds to slide back inside, people aboard the spacecraft will notice. A physicist may want to keep track of how long the experiment lasts. if a second spacecraft is launched to move at a speed of 0.8c with regard to the first, what is the second spaceship's speed with respect to the Earth?

At a speed of 0.95c, a spacecraft is veering to the right. For the benefit of the physicists at the Earth-based observatory, a banner with a length of 2 meters and a width of 1.5 meters is strung out the bottom of the spacecraft. (a) How long will the physicists measure the banner? A lengthy amount of time must be spent in rolling up this banner due to its breadth. Because it takes around 300 seconds to slide back inside, people aboard the spacecraft will notice. A physicist may want to keep track of how long the experiment lasts. if a second spacecraft is launched to move at a speed of 0.8c with regard to the first, what is the second spaceship's speed with respect to the Earth?

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A spaceship from another galaxy passes over the solar system directly above a radial line from the sunto the Earth. (We measure the distance between the Earth and the Sun to be 1.496 x 1011 m.) Anobserver standing on the Earth measures that the spaceship is approaching at 0.800c. The Earth-basedobserver also measures that it takes the spaceship 625 seconds to travel from the sun to Earth. Ignorethe relative motion of the Sun and Earth in this problem – their relative speed is only 0.001c, negligiblysmall compared to 0.800c.a) According to a scientist in the spaceship, the Earth-Sun distance is: ______8.9 x 10 ^10__________________b) According to a scientist in the spaceship, the time it takes her to travel the Earth-Sun distance is:_________374 s _______________c) What is the ratio of the kinetic energy to rest energy of the spaceship? KE/ER = _______0.667__________d) As the spaceship passed over the Sun, the alien scientist launched a probe toward Earth, traveling at0.200c relative to…
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