True
The sample of the experiment is randomized in randomization.
Answer:
<h3>Motion which repeats itself after regular intervals of time is known as periodic motion.</h3>
Answer:
a' =4.15 m/s²
Explanation:
Given that
m= 3.2 kg
F₁ = 1.9 i −1.9 j N
F₂=3.8 i −10.1 j N
From second law of Newton's
F(net) = m a
F₁ + F₂ = m x a
1.9 i −1.9 j + 3.8 i −10.1 j = 3.2 a
a = 1.78 i - 3.75 j m/s²
The resultant acceleration a'

a' =4.15 m/s²
I think answer is A. The Brightness of a Star