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3 years ago

Walking down a pebble beach becomes less painful as you enter the sea. Explain why.

1 answer:

4 0

Answer:Since pressure = force/area, the same force on a smaller area means more pressure. When you are walking on sand, the force being applied by your body is spread out over the entire surface of your foot. ... So, more pressure applied on a given area of your foot causes more pain.

Explanation:

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Friction plays a roll of operation in a car because we u stop pressing the peddle friction slowly starts making you slow down and stop.

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4 years ago

EXPLAIN how energy changes and is distributed as it moves from level to the next in a food chain.

Feliz [49]

Answer: There is a smaller amount of energy consumed making the consumer eat more

Explanation:

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3 years ago

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Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The

IRISSAK [1]

To develop this problem we will apply the concepts related to the Electromagnetic Force. The magnetic force can be defined as the product between the free space constant, the current (of each cable) and the length of these, on the perimeter of the cross section, in this case circular. Mathematically it can be expressed as,

$F= \frac{\mu_0}{2\pi} \frac{I^2L}{d}$

Here,

$\mu_0$ = Permeability free space

I = Current

L = Length

d= Distance between them

Our values are,

$L = 0.67m$

$m = 0.082kg$

$d = 7.4*10^{-3}m$

$I = \text{Current through each of the wires}$

Rearranging the previous equation to find the current,

$\frac{mg}{L} = 2*10^{-7} (\frac{I^2}{d})$

$I = \sqrt{\frac{mgd}{(2*10^{-7})L}}$

$I = \sqrt{\frac{(0.082)(9.8)(7.4*10^{-3})}{(2*10^{-7})(0.67)}}$

$I = \sqrt{44377.9}$

$I = 210.66A$

Therefore the current in the rods is 210.6A

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4 years ago

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On what factors, current sensitivity voltage sensitivity of<br>a galvanometer depend?

Eddi Din [679]

Answer:

Current sensitivity voltage sensitivity of a galvanometer depend is on a number of turns, coil area, restoring force per unit twist and megnetic filed.

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3 years ago

A reciprocating compressor is a device that compresses air by a back-and-forth straight-line motion, like a piston in a cylinder

QveST [7]

Answer:

$\Delta \theta = 47.57^{\circ} C$