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Debora [2.8K]
3 years ago
10

Technician A says that pressure below atmospheric pressure is called vacuum and is measured in inches of mercury​ (Hg). Technici

an B says that a manifold absolute pressure​ (MAP) sensor uses a low vacuum in the sensor to determine the pressure. Who is​ right?
Physics
2 answers:
Murljashka [212]3 years ago
8 0

Answer:

Technician A is Right and Technician B is wrong

Explanation:

Technician A is right, If we take standard atmospheric pressure as reference then pressure below atmospheric pressure is known as "vacuum" and is usually measured in inches of mercury Hg. On the other hand, the pressure above the atmospheric pressure is simply called "pressure".

Technician B is wrong, The MAP sensor compares manifold vacuum to a perfect vacuum to determine the pressure.The manifold absolute pressure (MAP) sensor is used in the electronic control system of an internal combustion engine.

Eduardwww [97]3 years ago
7 0

Answer:

A. Technician A

Explanation:

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Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P and volume V satisfy the eq
gayaneshka [121]

Answer:

The volume is decreasing at 160 cm³/min

Explanation:

Given;

Boyle's law,  PV = C

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P is pressure of the gas

V is volume of the gas

C is constant

Differentiate this equation using product rule:

V\frac{dp}{dt} +P\frac{dv}{dt} = \frac{d(C)}{dt}

Given;

\frac{dP}{dt} (increasing pressure rate of the gas) = 40 kPa/min

V (volume of the gas) =  600 cm³

P (pressure of the gas) = 150 kPa

Substitute in these values in the differential equation above and calculate the rate at which the volume is decreasing ( \frac{dv}{dt});

(600 x 40) + (150 x \frac{dv}{dt}) = 0

\frac{dv}{dt} = -\frac{(600*40)}{150} = -160 \ cm^3/min

Therefore, the volume is decreasing at 160 cm³/min

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3 years ago
According to Newton's Second Law, the force of the club hitting the golf ball will cause it to accelerate. At the moment of impa
vazorg [7]

Answer:

Option B

Explanation:

<h3>According to Newton's third law, for every reaction there will be equal and opposite reaction</h3>

Here in this case the force of the club hitting the golf ball will be in one direction and the force acting on club due to golf ball will be in opposite direction and magnitude of this force will be same as the magnitude of the force of the club hitting the golf ball

In this case the action will be the force of the club hitting the golf ball and reaction will be the force acting on club due to golf ball

∴ The club pushes against to golf ball with a force equal and opposite to the force of the golf ball on the club  

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3 years ago
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I drop an egg from a certain distance and it takes the egg 3.74 seconds to reach the ground. How high up was the egg?
Ulleksa [173]

Answer:

<em>B. 68.6m</em>

Explanation:

<u>Free Fall Motion </u>

When a body is left to move in the air with no friction, the motion is ruled only by the force of gravity. The vertical distance a body travels in the air after a time t is .

\displaystyle y=\frac{gt^2}{2}

We know the egg takes 3.74 seconds to reach the ground. The height it was launched from is

\displaystyle y=\frac{(9.8)(3.474)^2}{2}

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The closest correct option is

B. 68.6m

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Can you die if you bust a hemorrhoid?
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Parallel light waves hit the surface of a still lake and reflect in the same direction. Which interaction of light and matter do
vampirchik [111]

Answer:

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Explanation:

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There are two different types of reflection:

- Regular reflection: this occurs when the interface between the two mediums is smooth (such as in the case of the still lake), so all the parallel light waves (which have same angle of incidence) are reflected exactly with the same angle of reflection (so, they come out all with same direction)

- Diffuse reflection: this occurs when the interface between the two mediums is not smooth, so each light ray is reflected with a different angle because it hits the interface with a different angle of incidence.

Therefore, in the case of the still lake, the correct answer is regular reflection.

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3 years ago
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