Question

help? I'm stuck on a few questions, I'll give out a medal to the best answers.

An astronaut is stationary in space. Which of these would have the greatest speed as observed by the astronaut?

a ray of visible light

a strong magnetic field

a high speed electrical charge

a longitudinal wave carrying sound

Answer 1

id say either b or c

Answer 2

it takes eight minutes for light from the sun to travel to us..so it slow moving through space. there is no sound in space. so....

Answer 3

the speed of light is of 300000 km/s in space. there's nothing faster than light, otherwise we'd be able to time-travel.

Answer 4

so it would be B? @Iseulde but thanks, @kaylay. can y'all help me with another one?

Answer 5

try us.

Answer 6

One group of scientists used the technology in a space shuttle's main fuel engine to design a model of an artificial heart pump. Based on this scenario, what does the scientists' model demonstrate?

space technology impacts life on Earth

scientific technologies are always tested on humans

scientific technologies are independent of each other

space technology can be better used in other fields of science

Answer 7

I'd say it's D.