3 years ago

How many significant figures are in the number 17.95?

Physics

1 answer:

ANTONII [103]3 years ago

6 0

Answer:

Explanation:

All of them are significant figures

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Two objects, A and B, are in contact with one another. Initially, the temperature of A is 50 °C and the temperature of B is 100

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because kinetic energy is directly proportional to temperature so the hottor the object, the more kinetic energy.

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3 years ago

A solenoid with an inductance of 8 mH is connected in series with a resistance of 5 Ω and an EMF forming a series RL circuit. A

monitta

Answer:

induced EMF = 240 V

and by the lenz's law direction of induced EMF is opposite to the applied EMF

Explanation:

given data

inductance = 8 mH

resistance = 5 Ω

current = 4.0 A

time t = 0

current grow = 4.0 A to 10.0 A

to find out

value and the direction of the induced EMF

solution

we get here induced EMF of induction is express as

E = - L $\frac{dI}{dt}$ ...................1

so E = - L $\frac{I2 - I1}{dt}$

put here value we get

E = - 8 × $10^{-3}$ $\frac{10 - 4}{0.2*10^{-3}}$

E = -40 × 6

E = -240

take magnitude

induced EMF = 240 V

and by the lenz's law we get direction of induced EMF is opposite to the applied EMF

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3 years ago

More Density Graphi Questions

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2 years ago

What is matter in regards to energy?

svp [43]

Answer:

Energy always involves. motion in some form. Matter is an object that that up space so it is. measured in units of space

Explanation:

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A small child has a wagon with a mass of 10 kilograms. The child pulls on the wagon with a force of

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$F=ma$
where:
F - force
m - mass
a - acceleration

We transform this formula to get a:
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