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goldfiish [28.3K]
3 years ago
11

A wall, acted upon by a force of 20 N, does not move. The work done on the wall in this process is

Physics
1 answer:
prisoha [69]3 years ago
5 0

0J

Explanation:

A wall that is acted upon by a force of 20N does not move suggests that no work has been done on the wall.

Work done is the force applied to move in the direction of the applied force.

   Work done = force x distance.

Since the distance is 0, the work done on the body too is zero.

Work is only done when forces moves a body through a given distance.

Learn more:

Work done brainly.com/question/9100769

#learnwithBrainly

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A car accelerates uniformly from rest and reaches a speed of 22.0 m/s in 9.00 s. Assuming the diameter of a tire is 58.0 cm, (a)
Virty [35]

Answer:

Explanation:

Given:

Initial velocity, u = 0 m/s (at rest)

Final velocity, v = 22 m/s

Time, t = 9 s

Diameter, d = 58 cm

Radius, r = 0.29 m

Using equation of motion,

v = u + at

a = (22 - 0)/9

= 2.44 m/s^2

v^2 = u^2 + 2a × S

S = (22^2 - 0^2)/2 × 2.44

= 99.02 m

S = r × theta

Theta = 99.02/0.29

= 341.44 °

1 rev = 360°

341.44°,

= 341.44/360

= 0.948 rev

= 0.95 rev

B.

Final angular speed, wf = v/r

= 22/0.29

= 75.86 rad/s

6 0
3 years ago
A__________is a small particle that is a building block of matter.
ch4aika [34]
Atom is the correct answer.
6 0
4 years ago
Explain why the student should open the switch after each<br>reading. ​
vova2212 [387]

Answer:

Maybe to get different readings

5 0
3 years ago
How can we reduce the ripple factor of a bridge recitifier from 0.48 to 0.1 approximately ?
padilas [110]
U can try to use capacitor , the value of capacitor depends on circuit

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4 0
4 years ago
Which is the higher temperature? (Assume temperatures to be exact numbers.)(a)1.)265°C or 265°F?2.)265°C3.)265°F 4.)They are the
vazorg [7]

Remember the following formulas to convert temperatures between Farenheit and Celsius:

\begin{gathered} \text{ Farenheit to Celsius:} \\ C=\frac{5(F-32)}{9} \\  \\ \text{ Celsius to Farenheit:} \\ F=\frac{9}{5}C+32 \end{gathered}

Convert all the temperatures to Celsius to compare them.

<h2>Part a)</h2>

Convert 265ºF to Celsius:

\begin{gathered} C=\frac{5(F-32)}{9} \\  \\ =\frac{5(265-32)}{9} \\  \\ =129.444... \end{gathered}

Then, 265ºF is equal to 129.444...ºC. Then, 265ºC is higher than 265ºF.

The correct choice is option 2) 265ºC.

Part b)

Convert 370ºF to Celsius:

\begin{gathered} C=\frac{5(F-32)}{9} \\  \\ =\frac{5(370-32)}{9} \\  \\ =187.777...ºC \end{gathered}

Then, 370ºF is equal to 187.777...ºC. Then, 200ºC is higher than 370ºF.

The correct choice is option 2) 200ºC.

7 0
1 year ago
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