3 years ago

Plyometric helps strengthen your bones true or false

Physics

1 answer:

MatroZZZ [7]3 years ago

3 0

Plyometric does indeed help strengthen your bones

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A vacuum gage attached to a power plant condenser gives a reading of 27.86 in. of mercury. The surrounding atmospheric pressure

Nadusha1986 [10]

Answer:

absolute pressure = 1.07 lbft/in^2

Explanation:

given data:

vaccum gauge reading h = 27.86 inch = 2.32 ft

we know that

gauge pressure p is given as

$p = \rho gh$

$p = 848 \ lb/ft^3 * 32 \ ft/s^2 *2.32 ft = 62955.52 \ lbft/s^2 * 1/ft^2$

we know that $1\ lb ft\s^2 = \frac{1}{32.174}\ lbft$

1 ft = 12 inch

therefore $p = 62955.52 * \frac{1}{32.174} * \frac{1}{12^2}\ lbf/in^2$

$p = 13.59\ lbft/in^2$

$P_{atm} = 14.66\ lbf/in^2$

so absolute pressure = $P_{atm} - p$

= 14.66 - 13.59 = 1.07 lbft/in^2

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3 years ago

Need help with this worksheet. Very short

attashe74 [19]

Answer:

In the grapher: The stops are marked with a flat line, velocity with a diagonal line, and acceleration with a curve.

Average speed= Total distance/Total time

Explanation:

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3 years ago

For which job would a noise canceling device be the most beneficial?

musickatia [10]

A carpenter using saws and cutting tools as the tools make loud noises.

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3 years ago

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A car traveling at 38 m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. What is its acceleration?

asambeis [7]

a=v/t

a=38/10

a=-3.8 m/s^2

You put the negative in front of 3.8 because it decelerated.

Hope it helps and is correct :)

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3 years ago

A Level is set up midway between two wood hubs that are about 300 ft. apart. The rod reading on hub A is 9.09 ft. and the readin

Zarrin [17]

Answer:

<em>The correct difference is 3.44 ft</em>

Explanation:

The correct difference is given as

D=R_A-R_B

D=9.09-5.65

D=3.44 ft

4 0

3 years ago