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Margaret [11]
2 years ago
11

A __ is used to measure air pressure.

Physics
2 answers:
larisa86 [58]2 years ago
8 0
A barometer is used to measure air pressure!
PSYCHO15rus [73]2 years ago
3 0

Answer:

Barometer is used to measure air pressure.

Explanation:

Barometer :

Barometer used to measure the air pressure.

It is the scientific device which is used to measure the atmospheric pressure.

Atmospheric pressure change with the distance above and below the sea level.

When the air pressure is greater, then the mercury rises the higher.

Air pressure :

The weight of the air molecules pressing down on the earth it is called air pressure.

The density of air molecules is higher at sea level where the air pressure will be higher.

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An airplane starts from rest at the end of a runway and accelerates at a constant rate. In the first second, the airplane travel
Licemer1 [7]

Answer:

v=4.44\frac{m}{s}

Explanation:

Given that the airplane starts from the rest (this is initial velocity equals to zero)  and accelerates at a constant rate, position can be described like this: x=v_{0}t +\frac{1}{2} at^{2} where x is the position, t is the time a is the acceleration and v_{0} is initial velocity. In this way acceleration can be found. a=\frac{2(x-v_{0}t) }{t^{2} } =\frac{2(1.11m-0)}{1s^{2} } =2.22\frac{m}{s^{2} }.

Now we are able to found velocity at any time with the formula: v=v_{0} +at = 0\frac{m}{s} +(2.22\frac{m}{s^{2}}.2s)=4.44\frac{m}{s}

3 0
3 years ago
1. How many paths through which charge can flow would be shown in a diagram of a series
Elanso [62]
1. One
2. Oohm


Hope this helps
5 0
3 years ago
Calculate the distance in km that Charlie runs if he maintains the average speed from question 2 for 1 hour
egoroff_w [7]
Sorry, but what is question 2?
5 0
3 years ago
Read 2 more answers
Which of the following statements explains how total time spent in the air is affected as a projectile's angle of launch is incr
charle [14.2K]

Answer:

Therefore letter <u>C is the correct answer.</u>

Explanation:

In a projectile motion the total time in the air can be calculated using the following equation:

We analyze the y-component motion.

v_{fy}=v_{iy}-gt

When the final velocity (v(f)) is equal to zero we calculate the upward time and multiplying it by 2 we find the total time in the air. So we will have:

t_{tot}=2\frac{v_{iy}}{g}

t_{tot}=2\frac{v_{i}sin(\theta)}{g}

We can see that the <u>total time is directly proportional to the angle</u>, then when <u>θ increase t increase.</u>

Therefore letter C is the correct answer.

I hope it helps you!  

3 0
3 years ago
What will be the change in momentum caused by a net force of 120N acting on an object for 2 seconds?
Vinvika [58]

The change in  momentum is 240 kgm/s

<u>Explanation:</u>

Given:

Force, F = 120N

Time, dt = 2 sec

Change in momentum, dP = ?

We know,

F = \frac{dP}{dt}

On substituting the value we get:

120 = \frac{dP}{2}\\ \\dP = 240 kgm/s

Therefore, change in  momentum is 240 kgm/s

8 0
3 years ago
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