Physics, 24.04.2020 20:31 mmoore36

In an attempt to reduce the extraordinarily long travel times for voyaging to distant stars, some people have suggested traveling at close to the speed of light. Suppose you wish to visit the red giant star Betelgeuse, which is 430 ly away, and that you want your 20,000 kg rocket to move so fast that you age only 38 years during the round trip.
a)How fast must the rocket travel relative to earth?
B)How much energy is needed to accelerate the rocket to this speed?
c)The total energy used in the United States in the year 2005 was roughly 1.0 *10^20 J. Compare the rocket's energy to this value by computing the ratio Energy of the rocket/ Energy used by the US.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:00, taryn3

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Answers: 3

continue

Physics, 22.06.2019 07:00, chanthonymjones

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Answers: 1

continue

Physics, 22.06.2019 09:00, atsuedem974

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Answers: 2

continue

Physics, 22.06.2019 10:40, corrineikerd

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Answers: 2

continue

You know the right answer?

In an attempt to reduce the extraordinarily long travel times for voyaging to distant stars, some pe...

Questions in other subjects:

Mathematics, 15.10.2019 22:10

Note that the scale bar under the photo is labeled 1 μm (micrometer). the scale bar works the same way as a scale on a map, where, for example, 1 inch equals 1 mile. in this case t...

Biology, 15.10.2019 22:10

What kinds of cell junctions would you expect to find, and why, in the following situations? a. in the digestive system, where material must pass through cells, and n...

Business, 15.10.2019 22:10

Maribelle is looking to purchase a car. she is considering all of her options. she is a college student working 30 hours per week. she has been riding the bus to work and school, b...

Social Studies, 15.10.2019 22:10

Which is not one of the weaknesses associated with self-report data of delinquency? a) juveniles often only report trivial acts on self-report surveys b) many self-r...

Social Studies, 15.10.2019 22:10

It sounded old. deserve. old and tired and beaten to death. deserve. now it seemed to him that he was always saying or thinking that he didn’t deserve some bad luck, or some bad tr...

Social Studies, 15.10.2019 22:10

Acommon finding in the study of aggression is that exposure to television is associated with increased aggressive behavior in children. you are curious as to whether peer pressure...

Business, 15.10.2019 22:10

Badger corporation declared a stock distribution to all shareholders of record on march 25 of this year. shareholders will receive one share of badger stock for each 10 shares of s...

Business, 15.10.2019 22:10

Ompetitive manufacturing techniques customer demand. over the years, low cost often came at the expense of quality and rexibility. furthermore, suppliers didn't always deliver when...

Business, 15.10.2019 22:10

Samuel smith’s company wants to establish an assembly line to manufacture its new product, the istar phone. samuel’s goal is to produce 60 istars per hour. tasks, task times, and i...

Business, 15.10.2019 22:10

4. tariff effects: an overview consider two hypothetical countries, borzia and ardon. both countries produce idevices, and the price of idevices is lower in borzia than in ardon....

More questions: Physics Another questions