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Gnom [1K]
3 years ago
9

The bleeder is opened at a caliper and no brake fluid flows out. Technician A says that this is normal and that brake fluid shou

ld not flow or drip out of an open bleeder valve. Technician B says that the vent port in the master cylinder may be blocked.
A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither A nor B
Physics
1 answer:
horsena [70]3 years ago
5 0

Answer: b) Technician B only

Explanation:

For the fact no break fluid flows out Of the bleeder valve when It’s opened, that means there’s a blockage stopping the fluid from flowing off.

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  After giving an intense performance, a confused and disoriented flautist has wandered onto the motorway! They are playing a con
leva [86]
This is a Doppler effect. Generally, if you move to a frequency source, you would detect an increase in frequency and when you move away from a source you would detect a decrease.

For this question, before you pass them, you are actually approaching them, so you would hear a higher frequency than the constant 300 Hz they are playing at.

Using the condensed formula:

 f '   =   ((v <u>+</u> vd)/(v <u>+</u> vs)) * f

Where:  vd = Velocity of the detector.
              vs = Velocity of the frequency source.
              v   =  Velocity of sound in air.
              f '  =  Apparent frequency.
              f    =  Frequency of source.

v = 343 m/s,  vd = detector = 27.8 m/s,  vs = velocity of the source =0. (the flautists are not moving).
f = 300 Hz. 

There would be an overall increase in frequency, so we maintain a plus at the numerator and a minus at the denominator.

 f '   =   ((v + vd)/(v - vs)) * f

f '   =   ((343+ 27.8)/(343 - 0)) * 300
      =   (370.8/343)* 300 =  324.3

Therefore frequency before passing them = 324.3 Hz.

Cheers.
4 0
3 years ago
Were there experiences in his life that led to his interest in science and the study of the atom?
charle [14.2K]

Answer:

The right answer is Democritus

Explanation:

He experienced bonding with his father which strongly resulted his interest in science and to the study of the atoms ;)

Your welcome

5 0
2 years ago
Read 2 more answers
A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 152 om and makes an angl
aliya0001 [1]

Answer:

D₂= 167,21 cm : Magnitude  of the second displacement

β= 21.8° , countercockwise from the positive x-axis: Direction of the second displacement

Explanation:

We find the x-y components for the given vectors:

i:  unit vector in x direction

j:unit vector in y direction

D₁: Displacement Vector 1

D₂: Displacement Vector 2

R= resulta displacement vector

D₁= 152*cos110°(i)+152*sin110°(j)=-51.99i+142.83j

D₂= -D₂(i)-D₂(j)

R=  131*cos38°(i)+ 131*sin38°(j) = 103.23i+80.65j

We propose the vector equation for sum of vectors:

D₁+ D₂= R

-51.99i+142.83j+D₂x(i)-D₂y(j) = 103.23i+80.65j

-51.99i+D₂x(i)=103.23i

D₂x=103.23+51.99=155.22 cm

+142.83j-D₂y(j) =+80.65j

D₂y=142.83-80.65=62.18 cm

Magnitude and direction of the second displacement

D_{2} =\sqrt{(D_{x})^{2} +(D_{y} )^{2}  }

D_{2} =\sqrt{(155.22)^{2} +(62.18 )^{2}  }

D₂= 167.21 cm

Direction of the second displacement

\beta = tan^{-1} \frac{D_{y}}{D_{x} }

\beta = tan^{-1} \frac{62.18}{155.22 }

β= 21.8°

D₂= 167,21 cm : Magnitude  of the second displacement

β= 21.8.° , countercockwise from the positive x-axis: Direction of the second displacement

6 0
4 years ago
A moderate force will break an egg. However, an egg droppedon the road usually breaks while one dropped on the grass usuallydoes
Fed [463]

Answer:

C. the time interval for stopping is greater.

Explanation:

As the egg falls onto the grass, it takes a a greater amount of time for it to stop, and thus the force that is being applied to it is in increments; there is never enough force applied on the egg for it to break. That's why the egg doesn't break when it lands on the grass.

In contrast, when the egg is dropped on the road, <em>all of the force that is being applied by the road on the egg is in the tiny interval when the egg touches the road</em>, That force is large enough to break the egg because it is being applied in a tiny amount of time. That's why the egg dropped on the road breaks.

<em>So here is the rule of thumb: if you don't want to break your things but still want to drop them, drop them such that it takes  some for them to stop—because force will applied to them gradually. </em>

6 0
4 years ago
Which type of process happens without gain or loss of heat
vaieri [72.5K]
An adiabatic process. This occurs when there is no loss or gain of heat, as stated in the question.
6 0
4 years ago
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