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Dominik [7]
2 years ago
7

PLEASE HELP ME ANSWER DUE SOON BRAINLIEST FOR WHOEVER

Physics
1 answer:
DerKrebs [107]2 years ago
7 0

Answer:

1) mechanical

2) transverse

3) medium

4) longitudinal

Explanation:

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3 years ago
Excellent human jumpers can leap straight up to a height of
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For a human jumper to reach a height of 110 cm, the person will need to leave the ground at a speed of 4.65 m/s.  

We can calculate the initial speed to reach 110 cm of height with the following equation:

v_{f}^{2} = v_{i}^{2} - 2gh

Where:

v_{f}: is the final speed = 0 (at the maximum height of 110 cm)

v_{i}: is the initial speed =?

g: is the acceleration due to gravity = 9.81 m/s²

h: is the height = 110 cm = 1.10 m

Hence, the <u>initial velocity</u> is:

v_{i} = \sqrt{v_{f}^{2} + 2gh} = \sqrt{2*9.81 m/s^{2}*1.10 m} = 4.65 m/s

Therefore, the initial speed that the person must have to reach 110 cm is 4.65 m/s.

You can see another example here: brainly.com/question/13359681?referrer=searchResults

I hope it helps you!

4 0
2 years ago
The solar nebula was a
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Solar Nebula

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Which of the following would act as a barrier to sound waves?
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Headphones and earplugs
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An engine has an energy input of 125 J, and 35 J of that energy is transformed into useful energy. What is the efficiency of the
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Efficiency = (useful output) / (input)

Efficiency = (35 J) / (125 J) = 0.28  =  28%
8 0
3 years ago
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