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OLEGan [10]
4 years ago
13

57. Technician A says that a discharged battery (lower-than-normal battery voltage) can cause solenoid clicking. Technician B sa

ys that a discharged battery or dirty (corroded) battery cables can cause solenoid clicking. Which technician is correct?
Physics
1 answer:
Yuliya22 [10]4 years ago
5 0

Answer: Technician A

Explanation: The major cause of solenoid clicking in cars is a dead or low battery. That should be the first point of check when a car clicks or starts to develop a hard start suddenly. The battery which plays an integral role in the ignition process of vehicles can sometimes run low and maybe unable to create enough charge to power the engine.

In the case of a solenoid clicking the battery should be carefully checked either to be recharged or changed if faulty.

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Because you're in the eye of the storm.
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Breanna is standing beside a merry-go-round pushing 19° from the tangential direction and is able to accelerate the ride and her
leva [86]

To solve the problem it is necessary to apply the concepts given in the kinematic equations of angular motion that include force, acceleration and work.

Torque in a body is defined as,

\tau_l = F*d

And in angular movement like

\tau_a = I*\alpha

Where,

F= Force

d= Distance

I = Inertia

\alpha = Acceleration Angular

PART A) For the given case we have the torque we have it in component mode, so the component in the X axis is the net for the calculation.

\tau= F*cos(19)*d

On the other hand we have the speed data expressed in RPM, as well

\omega_f = 10rpm = 10\frac{1rev}{1min}(\frac{1min}{60s})(\frac{2\pi rad}{1rev})

\omega_f = 1.0471rad/s

Acceleration can be calculated by

\alpha = \frac{\omega_f}{t}

\alpha = \frac{1.0471}{9}

\alpha = 0.11rad/s^2

In the case of Inertia we know that it is equivalent to

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I = 1983.75kg.m^2

Matching the two types of torque we have to,

\tau_l=\tau_a

Fd=I\alpha

Fcos(19)*2.3=1983.75(0.11)

F=100.34N

PART B) The work performed would be calculated from the relationship between angular velocity and moment of inertia, that is,

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7 0
3 years ago
The spherical side mirror on a car is convex and has a radius of curvature of 25 cm. Another car is following, 20 m behind the m
svlad2 [7]

Answer:

(D) 0.99 cm

Explanation:

Given that the radius of curvature of the mirror is 25 cm.

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u=20m=2000cm

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Now the mirror formula.

1/v+1/u=1/f

So,

1/v+1/2000=-1/(25/2)\\1/v=-1/2000-1/12.5\\v=-12.422cm

Now

Magnification is,

m=-v/u

So,

m=12.422/2000=0.00621

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A research submarine has a 10-cm-diameter window that is 8.4 cm thick. The manufacturer says the window can withstand forces up
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Pnet = Po + dgh 

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