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marin [14]
3 years ago
7

What is one Pascal pressure? What is its unit?​

Physics
2 answers:
BabaBlast [244]3 years ago
3 0

Explanation:

the force acting perpendicularly on unit area of surface

  1. unit=pascle .
klasskru [66]3 years ago
3 0

A pressure of one Newton per square meter .. The SI unit of 1 Pascal pressure is 1 Newton per square metre .

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A ball is thrown vertically down from the edge of a cliff with a speed of 4 m/s, how high is the cliff, if it took 12 s for the
Vesna [10]

Answer:

The height of the cliff from which the ball was dropped from is 224.4m.

\overline{v}={\frac{\Delta x}{\Delta t}}

Given the data in the question;

Initial velocity of the ball;

Time taken by the ball to reach the ground;

Distance or Height of the cliff from which the ball was thrown from;

To get the height of the Cliff, we use the Second Equation of Motion:

Where s is the distance or height,  is the initial velocity, t is the time and a is the acceleration. Since the ball was thrown down from a certain height (cliff), its is now under the influence of gravity. acceleration due to gravity;

Hence, the equation becomes

We substitute the given values into the equation

Therefore, the height of the cliff from which the ball was dropped from is 224.4m

Explanation:

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3 years ago
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Which of the following states that energy cannot be created or destroyed?
natali 33 [55]

Answer:

germany

Explanation:

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3 years ago
Your bedroom has a rectangular shape and you want to measure its size. You use a tape that is precise to 0.001 mm and find that
avanturin [10]

This question is in two parts. This is not the correct multiple choice options for this part a.

The second part had the option

b)If your bedroom has a circular shape, and its diameter measured 6.32 , which of the following numbers would be the most precise value for its area?

a)30 m^2

b) 31.4 m^2

c)31.37 m^2

d)31.371 m^2

Answer:

A. 17.0 m²

B. 31.4 m²

Explanation:

The formula for the calculation of the area of a rectangle is given as

Area = length x width

The length = 3.547 m

The width = 4.79 m

Then area = 3.547 x 4.79

= 16.990m²

When approximated = 17.0m²

This is the most precise measurement for the area of the bedroom.

B.

We solve b using this formula

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4 0
3 years ago
How is Newton’s third law of motion involved when you jump straight upward?
Bad White [126]
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3 0
3 years ago
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(b) The figure below shows a model train, travelling at speed , approaching a
Andrew [12]

Answer:

0.62 m/s

Explanation:

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V = 0.62 m/s

Therefore, the initial velocity of the train is 0.62 metres per second.

3 0
3 years ago
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