Answer:
⇒ To find the mass, we apply the following formula:
<u>Data</u>:
➢ 
➢ 
➢ 
∴ We replace and develop:
<h2>
Body mass is 39.9 kg</h2>
I think it might be A. I’m sorry if I’m wrong
Answer:
Object in motion: By the Newton's first law about inertia, an object in motion tends to keep in motion, unless an external force act on it.
Object at rest: By the Newton's first law about inertia, an object at rest tends to keep at rest, unless an external force act on it.
(a) For constructive interference the two waves will have higher amplitude of 10 cm.
(b) For destructive interference the two waves will have zero amplitude.
<h3>
Amplitude of the waves for constructive interference </h3>
For constructive interference the two waves will have higher amplitude after constructive interference.
Resulting amplitude = 5 cm + 5cm = 10 cm
<h3>
Amplitude of the waves for destructive interference </h3>
For destructive interference the two waves will have zero amplitude after destructive interference.
Resulting amplitude = 5 cm - 5cm = 0
Learn more about amplitude here: brainly.com/question/413740
#SPJ1
The colors red, blue and yellow
