Our current rockets would take tens of thousands of years to get to even the nearest star, 4.3 ly away. If we invent a spacecraft that can travel 0.1 the speed of light, how long would it take to travel to the nearest star? - 4.3 ye

- 3.8 x 10^14 yr

- 43 ly

- 1.9 x 10^7 yr

It will take the rocket 43 light years to get to the nearest star

Explanation:

1 light year = 9.46 * 10¹⁵ m

speed of light = 3.0 * 10⁸ m/s

In one year, light travels a distance of 1 light year.

A rocket with that travels with a speed 0.1 * the speed of light will travel the distance of one light year in 1/0.1 = 10 light years

Therefore, it will take the rocket 10 * 4.3 light years to get to the star = 43 light years.

43 light years = 43 * 9.46 * 10¹⁴ m = 4.07 * 10¹⁷ m

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.