The Alpha Centuri star looks yellow-white because it has the same spectral type of G2 as the sun. Alpha Centauri A also looks yellow-white because it is much hotter than Alpha Centauri B, which is yellow-orange.

3 0

4 years ago

PLEASE HELP <br> 2.0 x 10410<br> OTX<br> 8.0 x 10

slava [35]

Answer:

$\frac{2.0.10(410)}{8.0.10( - 240)} = \frac{10(650)}{40}$

Explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

4 0

4 years ago

A 1,500-kilogram car travelling at 10 meters per second (about 22 mph) strikes a parked car on the side of the road. If the car

Alona [7]

The force exerted on the parked car by the moving car is –30000 N

To solve this question, we'll begin by calculating the deceleration of the moving car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 0.5 s

<h3>Deceleration (a) =?</h3>

$a = \frac{v - u}{t} \\\\ a = \frac{0 - 10}{0.5}\\\\a = \frac{- 10}{0.5}$

Finally, we shall determine the force exerted by the moving car on the parked car. This can be obtained as follow:

Mass of moving car (m) = 1500 Kg

Acceleration (a) = - 20 m/s

<h3>Force (F) =.?</h3>

F = ma

F = 1500 × (-20)

NOTE: The negative sign indicate force is in opposite direction to the parked car.

Therefore, the force exerted on the parked car by the moving car is –30000 N

Learn more: brainly.com/question/15430805

7 0

3 years ago