All stars originated from c., protostars. Protostars are the earliest phase of the process of star evolution.
-Starry Sky
Oh lmao, my name and the irony. cx
W=mg
W=75(1.6)
W=120N
a. 120N
Heya!!
For calculate aceleration, lets applicate second law of Newton:

<u>Δ Being Δ</u>
F = Force = 183 N
m = Mass = 367 kg
a = Aceleration = ?
⇒ Let's replace according the formula and clear "a":

⇒ Resolving

Result:
The aceleration is <u>0,49 meters per second squared (m/s²)</u>
Good Luck!!
Answer a) is incorrect as sound does not travel in a vacuum.
Answer:
4.80 seconds
Explanation:
The velocity of sound is obtained from;
V= 2d/t
Where;
V= velocity of sound = 329.2 ms-1
d= distance from the wall = 790.5 m
t= time = the unknown
t= 2d/V
t= 2 × 790.5/ 329.2
t= 4.80 seconds