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3 years ago

What is force applied per unit area

Physics

2 answers:

Marizza181 [45]3 years ago

3 0

Answer:

Pressure is defined as force per unit area. The standard unit for pressure is the Pascal, which is a Newton per square meter.

P= A/F

KiRa [710]3 years ago

3 0

Answer:

force per unit area - the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure" pressure, pressure level.

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You are standing at the top of a cliff that has a stairstep configuration. There is a vertical drop of 6 m at your feet, then a

Zigmanuir [339]

Answer:

4.5 m/s

Explanation:

The rock must barely clear the shelf below, this means that the horizontal distance covered must be

$d_x = 5 m$

while the vertical distance covered must be

$d_y = 6 m$

The rock is thrown horizontally with velocity $v_x$ , so we can rewrite the horizontal distance as

$d_x = v_x t$

where t is the time of flight. Re-arranging the equation,

$t=\frac{d_x}{v_x}$ (1)

The vertical distance covered instead is

$d_y = \frac{1}{2}gt^2$

where we omit the term $ut$ since the initial vertical velocity is zero. From this equation,

$t=\sqrt{\frac{2d_y}{g}}$ (2)

Equating (1) and (2), we can solve the equation to find $v_x$ :

$\frac{d_x}{v_x}=\sqrt{\frac{2d_y}{g}}\\\frac{d_x^2}{v_x^2}=\frac{2d_y}{g}\\v_x = d_x \sqrt{\frac{g}{2d_y}}=5\sqrt{\frac{9.8}{2(6)}}=4.5 m/s$

6 0

3 years ago

A positively charged glass rod attracts object X. The net charge of object X:A.may be zero or negative.B.may be zero or positive

Damm [24]

Answer:A

Explanation:

A positively charged glass rod attracts object x. So, object x must be negatively charged or uncharged.

This occurs because opposite charges attract each other or either object x is uncharged and a negative charge is induced in it as glass rod approach the object x.

So option A is correct

8 0

2 years ago

Isaac Newton developed the Universal Law of ____________________.

alekssr [168]

Answer:

He also formulated his law of Universal Gravitation in the Principia, which states that every point mass attracts every single other point mass by a force pointing along the line intersecting both point.

Explanation:

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2 years ago

Read 2 more answers

I have 17 liters of air to a balloon the is 200 kelvin. If I take the balloon to a place where the temperature is 157 kelvin, wh

amm1812

Answer:

The new volume of the ballon will be 13.345 L

Explanation:

Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is maintained at a constant pressure, by means of a constant of proportionality that is applied directly. For a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases.

Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

$\frac{V}{T}=k$

It is possible to assume that you have a certain volume of gas V1 that is at a temperature T1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the temperature will change to T2, and it will be true:

$\frac{V1}{T1}=\frac{V2}{T2}$