2.

Physics

1 answer:

olga55 [171]2 years ago

7 0

Force because it’s a barrier to velocity so calculating that makes sense

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Cual de las escalas de temperatura es la mas antigua

IrinaVladis [17]

Answer:

the translation I got for this question is

Which of the temperature scales is the oldest?

Explanation:

and i searched for it and got this=

Fahrenheit scale

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2 years ago

A hose directs a horizontal jet of water, moving with a velocity of 20m/s, on to a vertical wall. The

just olya [345]

Force is defined as the rate of change of momentum.
The initial amount of momentum is $mv$ because water stops when it hit the wall total change of momentum must be $\Delta p=mv$ .
Now let's calculate the force.
$F= \frac{dp}{dt}=\frac{d(mv)}{dt}=\frac{dm}{dt}v$
We need to find $\frac{dm}{dt}$ . This is the amount of water hiting the wall per second.
$\frac{dm}{dt}=\rho Av$
Our final formula would be:
$F=\rho Avv=\rho Av^2$
And now we can calculate the answer:
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2 years ago

What component of Star Wars is possible

kolezko [41]

Comparing to current technology, here are some component of star wars that is possible :

- The drones
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Luke's bionic hand in star wars ? we also already made that

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2 years ago

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Under which condition does a light ray striking a concave mirror reflect off parallel to the principle axis ?

asambeis [7]

The answer would be c if u need to know

5 0

2 years ago

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malfutka [58]

Answer:

<em>The penny will hit the ground at 6.39 seconds</em>