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NikAS [45]
2 years ago
15

WHICH ONE IS CORRECT???

Physics
2 answers:
sveta [45]2 years ago
5 0

Answer:

A

Explanation:

Julli [10]2 years ago
3 0

Answer:

According to Pascals law, THE PRESSURE EXERTED TO A CONFINED LIQUID IS TRANSMITTED EQUALLY AND UNDIMINISHED IN ALL DIRECTIONS THROUGHOUT THE MASS OF THE LIQUID--Blaise Pascal

so the pressure at A2 must be equal to A1

buy however the F1 will be less than F2 since:

P1=F1/A1 and P2=F2/F1

P1=P2 according to Pascal

so, F1/A1=F2/A2

with less amount of force at P1 THE force gets multiplied.

Therefore it's obvious that option A and B is wrong. I can't see option C properly.

but, you are going to have this option.

C.F1>F2

so the option with F1>F2 is correct

PLEASE MARK BRAINLIEST

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Name two units for measuring the diameter of nucleus atom.
Evgesh-ka [11]

The two units for measuring the diameter of nucleus atom are femtometre and metre.

How do you measure the size of the nucleus ?

Nucleus size is expressed in fermi, often known as femtometers. between a lighter and a heavier nucleus. Despite its modest size, the nucleus contains the majority of an atom's mass. The weight or mass of the atom's nucleus and neutrons are determined by neutrons.

femtometre (fm), which equals 10^{-15} metre.

A nucleus' diameter largely depends as to how many particles it contains, from about 4 fm for a light nucleus like carbon to 15 fm for a heavy nucleus as lead.

Learn more about nucleus of an atom here :-

brainly.com/question/10658589

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6 0
1 year ago
If an object starting from rest falls 5.7 seconds how far does it fall
White raven [17]
Kinematic question!
Start with your knowns!

t = 5.7s \\ v0 = 0 \frac{m}{s}  \\ a =  - 9.8 \frac{m}{ {s}^{2} }
we want to find x!

the only kineamtic that works with this info is the third!
x = v0 \times t + \frac{1}{2}  \times a \times  {t}^{2}
so we plug in our values and get
x = 0 +  \frac{1}{2}  \times ( - 9.8 \frac{m}{ {s}^{2} } ) \times ( {(5.7s)}^{2} )
this'll equal out to -159.2 meters.

our units equal out, so we know our answer is correct!
5 0
3 years ago
A car is traveling at 33.2 m/s. If the car has a kinetic energy of 688,900 J, what is the car's mass?​
aivan3 [116]

Answer:

1250kg

Explanation:

\frac{688900}{33.2\\^{2} } = 625

\frac{1}{2} m = 625

625 x 2 = 1250

5 0
3 years ago
Read 2 more answers
A Pitot-static probe is used to measure the speed of an aircraft flying at 3000 m. If the differential pressure reading is 3300
adell [148]

Answer:

   v = 306.76 Km/h

Explanation:

given,

height of the aircraft = 3000 m

differential pressure reading = 3300 N/m²

density of air = 0.909 Kg/m³

speed of aircraft = ?

Assuming the air flowing above air craft is in-compressible, irrotational and steady so, we can use Bernoulli's equation to solve the problem.

using Bernoulli's equation

          \dfrac{v^2}{2} = \dfrac{\Delta P}{\rho}

where ρ is the density of the air at 3000 m

          v= \sqrt{\dfrac{2 \times \Delta P}{\rho}}

          v= \sqrt{\dfrac{2 \times 3300}{0.909}}

          v = \sqrt{7260.726}

                 v = 85.21 m/s

          v= 85.21 \times \dfrac{3600}{1000}

                 v = 306.76 Km/h

4 0
3 years ago
Maya uses a tuning fork of frequency 250 Hz to produce transverse wave on a stretched string. Her friend justin measure the dist
Viktor [21]

Answer:6.25m/s

Explanation:

V=F*lander

V=FL/2=250*0.05/2

7 0
2 years ago
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