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Tems11 [23]
3 years ago
5

How can we relate density and pressure in liquids ??

Physics
2 answers:
Masteriza [31]3 years ago
6 0
Pressure increases with increasing depth. h2=2hh
Otrada [13]3 years ago
5 0

<u>How can we relate density and pressure in liquids ??</u>

\huge{ \texttt{ \red{answers}}}

  • It is the pressure at each point of a static fluid. When we immerse ourselves in a liquid, the pressure increases with depth.
  • In the case of a liquid (constant density) the pressure increases linearly with depth.

⭐ ----------------------------------------------------------------------------------⭐

\bold{BRAINLY MENTALMENTE}

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A rollercoaster loop has a radius of 22.7 m. what is the minimum speed the coaster must have at the top of the loop to not fall
Softa [21]

Answer:

v = 14.92 m/s

Explanation:

First, make a <u>free body diagram</u> and see the <u>forces in the y-direction</u>.

  • ∑F_y = F_N - F_g

Use Newton's 2nd Law F = ma to replace ∑F_y with m * a_y.

  • m * a_y = F_N - F_g

The acceleration in the y-direction is the centripetal acceleration, a_c = v^2/r.

  • m * v^2/r = F_N - mg

The <u>normal force is 0</u> because this is where the rollercoaster is not falling off the track yet not touching the track.

  • m * v^2/r = - mg

The masses cancel out.

  • v^2/r = -g

<u>Solve for v</u> to find the speed of the rollercoaster at the top of the loop.

  • v^2 = -(-9.81) * r
  • v = √(9.81 * 22.7)
  • v = 14.9227

The minimum speed the coaster must have at the top of the loop to not fall off the track is <u>14.92 m/s</u>.

4 0
2 years ago
An image that cannot be obtained on a screen is called​
Licemer1 [7]
An image that cannot be obtained on a screen is called an Virtual Image.
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2 years ago
When a scientific calculator shows the quantity below, what does it mean?<br> 1.5E8
jenyasd209 [6]
1.5 with 8 exponent of 10.
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6 0
2 years ago
Think about your displacement at three different times throughout your day and compare it with e distance you traveled. (6 point
photoshop1234 [79]

Here, we are asked to calculate the total distance and displacement for three different times.

Before solving the question, first we have to understand the distance and displacement.

Displacement is the minimum distance travelled between two points. Hence, it is a vector quantity. On the other hand, the distance travelled is a scalar quantity.

The total displacement will be calculated by vector addition while total distance will follow algebraic addition.

Let us consider Ram travelled 3 km towards north from his home to office in 1 hour. The highway is straight. He reached at his office and saw that his office was closed. So, he came back. He stopped at shop for 2 minutes which was 2 km away from his office. Then he started his journey and reached him home.

Let his first distance travelled from home to office is s_{1} =\ 3\ km

Here, the displacement is also the same in magnitude with distance travelled and it is directed towards north.

The distance travelled by Ram from office to the shop s_{2} =2\ km

Here, the displacement is 2 km towards south.

The distance travelled by Ram from the shop to the office s_{3} =\ 1 \ k m

Here, the displacement is 1 km towards south.

Here, the total distance travelled  [s]\ =\ s_{1} +s_{2} +s_{3}

                                                                =3\ km+2\ km+1\ km

                                                                =6\ km

Now we have to calculate the total displacement. Here, the total displacement is zero.

It is because the initial and final points of his journey is same.

                             

5 0
3 years ago
A spectroscope prism separates the white light from a star into a very wide spectrum. When widely spread, black lines appear in
topjm [15]

Answer:

C. It helps scientists detect dark matter.

Explanation:

I got a 100% on my test. hope it help and I hope your having an awesome day :)

5 0
2 years ago
Read 2 more answers
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