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polet [3.4K]
2 years ago
5

According to the article, why might acting happy actually make one happy?

Physics
1 answer:
nasty-shy [4]2 years ago
6 0

Answer:

Acting happy can act as a stimuli to making yourself happy and release the happy chemicals.

Explanation:

100 on e2020

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A toy rocket launcher can project a toy rocket at a speed as high as 35.0 m/s.
Anestetic [448]

Answer:

(a) 62.5 m

(b) 7.14 s

Explanation:

initial speed, u = 35 m/s

g = 9.8 m/s^2

(a) Let the rocket raises upto height h and at maximum height the speed is zero.

Use third equation of motion

v^{2}=u^{2}+2as

0^{2}=35^{2}- 2 \times 9.8 \times h

h = 62.5 m

Thus, the rocket goes upto a height of 62.5 m.

(b) Let the rocket takes time t to reach to maximum height.

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