The mass of a spacecraft is about 435 kg . an engine designed to increase the speed of the spacecraft while in outer space provides 0.09-n thrust at maximum power. by how much does the engine cause the craft's speed to change in 1 week of running at maximum power? describe any assumptions you made.

Δ v =  125 m/s

Explanation:

given,

mass of space craft = 435 Kg

thrust = 0.09 N

time = 1 week

       = 7 x 24  x 60 x 60 s

change in speed of craft = ?

Assuming no external force is exerted on the space craft

now,

a = 2.068 x 10⁻⁴ m/s²

using equation of motion

Δ v = a t

Δ v = 2.068 x 10⁻⁴ x 7 x 24 x 60 x 60

Δ v =  125 m/s

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid