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mestny [16]
3 years ago
11

A current of 1.8 A delivers 2.5 C of charge.

Physics
2 answers:
Verdich [7]3 years ago
7 0

Answer:

<em>1.4 seconds</em><em>,</em><em> </em>which is the third option

Explanation:

Current is defined as the flow of charge per time

Therefore, the equation that relates current, charge and time can be expressed as follows:

I = ΔQ / ΔT

where:

I is the current given = 1.8 ampere

ΔQ is the charge given = 2.5 coulomb

Δt is the time required for the flow of the given charges to give the 1.8 ampere.

Substitute with the givens in the above equation to get the time as follows:

1.8 = 2.5 / ΔT

ΔT = 2.5 / 1.8 = 1.38888 which is approximately 1.4 seconds

I am Lyosha [343]3 years ago
4 0

" 1.8 Ampere " means "1.8 Coulomb/sec".

(2.5 C)/(1.8 C/sec) = (2.5/1.8) (s) = <em>1.39 sec </em>

I honestly don't see where any of the choices comes from, but the closest one is (C) 1.45 sec.

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The plug has a diameter of 30 mm and fits within a rigid sleeve having an inner diameter of 32 mm. Both the plug and the sleeve
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Answer:

P=740 KPa

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Explanation:

Given that

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Diameter of sleeve ,D=32 mm

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n=0.45

As we know that

Lateral strain

\varepsilon _t=\dfrac{D-d}{d}

\varepsilon _t=\dfrac{32-30}{30}

\varepsilon _t=0.0667

We know that

n=-\dfrac{\epsilon _t}{\varepsilon _{long}}

\varepsilon _{long}=-\dfrac{\epsilon _t}{n}

\varepsilon _{long}=-\dfrac{0.0667}{0.45}

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So the axial pressure

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6 0
3 years ago
Which of the following is an example of work being done on an object?
tensa zangetsu [6.8K]

Answer:

d. All of these

Explanation:

work is said to be done when a force is applied to an object through a certain distance. the SI unit of workdone is joules or newton per meter

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workdone = force x distance.

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4 0
3 years ago
Read 2 more answers
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