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11111nata11111 [884]
3 years ago
7

Who invented the mercury barometer and what is it used to measure?

Physics
2 answers:
Aleksandr [31]3 years ago
8 0
<span> its a instrument for measuring atmospheric pressure that was invented by </span>Evangelista Torricelli
Whitepunk [10]3 years ago
6 0

Answer:

The barometers are instruments used to measure the atmospheric pressure in a given space. Particularly, the mercury barometer uses a mechanism that depends on the expansion of the mercury to measure the atmospheric pressure.

The mercury barometer was invented around the year 1643, by the physicist Evangelista Torricelli

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On the moon, the acceleration due to gravity is one-sixth that of earth. That is gmoon = gearth /6 = (9.8 m/s2 )/6 = 1.63 m/s2 .
MAVERICK [17]
The pendulum would differ from 300 inches
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3 years ago
Tapping the surface of a pan of water generates 17.5 waves per second. If the wavelength of each wave is 45 cm, what is the spee
ElenaW [278]

Answer:

Speed of the wave is 7.87 m/s.

Explanation:

It is given that, tapping the surface of a pan of water generates 17.5 waves per second.

We know that the number of waves per second is called the frequency of a wave.

So, f = 17.5 Hz

Wavelength of each wave, \lambda=45\ cm=0.45\ m

Speed of the wave is given by :

v=f\lambda

v=17.5\times 0.45

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5 0
3 years ago
HELP!
Goryan [66]

Answer:

The solved problem is in the photo. Hope it helps.

3 0
3 years ago
A race car moving along a circular track has a centripetal acceleration of 15.4 m/s? If the car has
Helen [10]

Answer:

r = 58.44 [m]

Explanation:

To solve this problem we must use the following equation that relates the centripetal acceleration with the tangential velocity and the radius of rotation.

a = v²/r

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v = tangential speed = 30 [m/s]

r = radius or distance [m]

r = v²/a

r = 30²/15.4

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3 0
3 years ago
Which of the following is not considered a major work flow structure?
mixas84 [53]

Answer:

The correct option is;

D. Fabrication

Explanation:

A workflow flow is a detailed business process consisting of a series of required interconnected tasks in  directed graph format  that is executable by  workflow management system.

Considering each of the options, we have

A. Work center

This consists of part of the transformation input to output. The location

B. Project

This is the unique identifier of the task to be processed

C. Assembly line

Forms part of the required input where transformation takes place and items are being processed within the assembly line

D. Fabrication

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E. Continuous flow

Here again, the items are being processed and are in motion, which constitutes a workflow structure.

8 0
3 years ago
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