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4 years ago

A car Excel accelerates from the rest to a velocity of 5 m in four seconds what is the average acceleration

Physics

1 answer:

MrRa [10]4 years ago

5 0

Average acceleration: velocity/time

5/4= 1.25 m/s² Acceleration

Hope I helped :)

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4 years ago

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Which of the following terms refers to any push or pull on an object

Murljashka [212]

Its either B. force or A. net force but I will go with force because forces can either push or pull I hope it help you.

3 0

4 years ago

Water flows upward in a pipe oriented at 30 degrees. The mercury manometer readsh= 12 cm. Bothfluids are at 20â—¦C. What is the

NISA [10]

Answer:

The pressure difference in the pipe is 2666 Pa.

Explanation:

Given that,

Height = 12 cm

Angle = 30°

We need to calculate the height

Using formula of height

$h_{1}=2\tan30$

$h_{1}=1.154\ m$

We need to calculate the pressure difference in the pipe

Using formula of pressure

$P_{2}=P_{1}+\rho_{w}h-\rho_{Hg}h-\rho_{w}h_{1}$

$P_{2}-P_{1}=\rho_{w}h-\rho_{Hg}h-\rho_{w}h_{1}$

Where, $\rho_{Hg}$ = density of mercury

$\rho_{w}$ = density of water

Put the value into the formula

$P_{2}-P_{1}=(13600-1000)\times12\times10^{-2}+1000\times1.154$

$P_{2}-P_{1}=2666\ Pa$

Hence, The pressure difference in the pipe is 2666 Pa.

4 0

3 years ago

If y is inversely proportional to x and y = 4 and x=10, find y when x = 20

timurjin [86]

Answer:

Y=8

Explanation:

Y=4

X=10

if x is 20 it means it is doubled frm the previous therefore it means even y has to be doubled

first. now

x=10. x=20

y=4. y=8

8 0

3 years ago

20 points please answer

Anna [14]

Another way to test your question is to build your own miniature buildings. Depending on how in-depth you go, building could get a little pricey, but if you keep it basic there shouldn't be a problem. Decide on a certain number of foundations to test [maybe 3 or so] and try simulating an earthquake.
<span>Hope this helps! </span>

6 0

3 years ago