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3 years ago

PLEASE HURRY WILL GIBE BRAINILEST:D

Physics

2 answers:

natita [175]3 years ago

7 0

I think the answer is 2

ahrayia [7]3 years ago

6 0

Answer:

2 is the anwser I think

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D. When a substance reacts with another substance, it shows its chemical property

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4 years ago

Where are the field poles mounted on an alternator

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Explanation:

(D) i think there you go have a good day

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3 years ago

What are the three key points to seismic waves

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Earthquakes produce three types of seismic waves: primary waves, secondary waves, and surface waves. Each type moves through materials differently. In addition, the waves can reflect, or bounce, off boundaries between different layers.

three key points:

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4 years ago

A technician wearing a brass bracelet enclosing area 0.00500 m2 places her hand in a solenoid whose magnetic field is 3.10 T dir

aliya0001 [1]

Explanation:

Given that,

Area enclosed by a brass bracelet, $A=0.005\ m^2$

Initial magnetic field, $B_i=3.1\ T$

The electrical resistance around the circumference of the bracelet is, R = 0.02 ohms

Final magnetic field, $B_f=0.93\ T$

Time, $t=16\ ms=16\times 10^{-3}\ s$

The expression for the induced emf is given by :

$\epsilon=-\dfrac{d\phi}{dt}$

$\phi$ = magnetic flux

$\epsilon=-\dfrac{d(BA)}{dt}$

$\epsilon=-A\dfrac{d(B)}{dt}$

$\epsilon=-A\dfrac{B_f-B_i}{t}$

$\epsilon=-0.005 \times \dfrac{0.93-3.1}{16\times 10^{-3}}$

$\epsilon=0.678\ volts$

So, the induced emf in the bracelet is 0.678 volts.

Using ohm's law to find the induced current as :

V = IR

$I=\dfrac{V}{R}$

$I=\dfrac{0.678}{0.02}$

I = 33.9 A

I = 34 A

So, the induced current in the bracelet is 34 A. Hence, this is the required solution.

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3 years ago

Which element listed would have the greatest electronegativity?

DiKsa [7]

Answer:

A. Fluorine

Explanation:

This is because it has the smallest atomic radius.

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7 0

3 years ago

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