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gregori [183]
3 years ago
8

Why is the rotation system used in volleyball? Physics was the closest thing to PE

Physics
2 answers:
iris [78.8K]3 years ago
5 0
Eso es por que.. lo que la persona dijo
tankabanditka [31]3 years ago
3 0

Answer:

A rotation occurs after every side out, which is when the receiving team gains the right to serve by winning a rally. ... The new serving team will rotate clockwise one spot. The purpose of this is to rotate all the players through the serving position. If you continue winning points, you stay in position.

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The brain mass of a human fetus during a particular trimester can be accurately estimated from the circumference of the head by
Paladinen [302]

Answer:

a. If c = 20 cm, then the mass of the brain is m = 5 g.

b. At c = 20 cm, the brain's mass is increasing at a rate of 15.75 g/cm.

Explanation:

From the equation

m\left(c\right) = \frac{c^3}{100}-\frac{1500}{c}

we have

a. for c = 20 cm

m\left(20\right)=\frac{20^3}{100}-\frac{1500}{20}=5,

then the mass is m(20) = 5 g.

b. In order to find the rate of change, first we derivate

\frac{dm}{dc}=\frac{3c^2}{100}+\frac{1500}{c^2}.

Evaluated at c = 20 cm, we have

\frac{dm}{dc}|_{c=20}=\frac{3\times 20^2}{100}+\frac{1500}{20^2}=15.75.

So, at c = 20 cm, the mass of the brain is increasing at a rate of 15.75 g/cm.

3 0
3 years ago
In June 21 are there more hours of daylight in San Francisco or the equator explain
jonny [76]

Answer:

There would be more hours of sunlight at the equator

4 0
3 years ago
1.
Rama09 [41]
A :-) a = v^2 by r
Given - radius = 25 m
velocity = 10 m/s
Solution -
a = v^2 by r
a = ( 10 )^2 by 25
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a = 4 m/s^2

.:. The centripetal acceleration of the car
= 4 m/s^2.
8 0
3 years ago
A golf ball is struck at ground level. The speed of the golf ball as a function of the time is shown in Figure 4-36, where t = 0
lana66690 [7]
In your question where as a golf ball is struck at a ground level and the speed of the ball as a function of time is in the figure where time t=0 and va = 16m/s and vb=32m/s. The following is the answer: 
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<span>(b) What is the maximum height above ground level attained by the ball?
</span>-39.87m
3 0
3 years ago
Read 2 more answers
HELP PLEASE BRAINLESS ANSWER
qwelly [4]
Condensation endothermic or exotérmica
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