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1 answer:

7 0

The answer to number 9 is C, decreased muscle tension. I believe number 10 is D, prepares an organism to respond to stress.

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A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same heig

PolarNik [594]

Answer:

The potential energy has a maximum when the ball is a time that is half of the time for total travel

Explanation:

Generally potential energy is a the varies directly with the height according to this formula

$PE =mgh$

and the ball attains a maximum height when the time is equal to half of the total time taken to travel

8 0

2 years ago

Read 2 more answers

Explain why does the bowling ball decelerate as it travels along the lane

frutty [35]

The main cause of this is Friction. The more oil that is laid down, the less friction there is between the ball and the lane surface. The less friction, the harder it is for the bowler to send the ball in a curved path imparted by the spin that the bowler puts on the ball at the instant of release.

5 0

2 years ago

Calculate a rate of cooling down of air from 80 C to 5C Show calculation. Give an answer in cubic meters per minute and cfm.

antoniya [11.8K]

Explanation:

Given that,

Rate of cooling of air

Initial temperature= 80°C

Final temperature = 5°C

We need to calculate

Using newton's law of cooling

$\dfrac{dT}{dt}=c(T-T_{0})$