4 years ago

A diverging mirror is .................

Physics

1 answer:

lyudmila [28]4 years ago

5 0

Is there a multiple choice?

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How much greater is the light-collecting area of a 6-meter telescope than a 3-meter telescope?.

Fittoniya [83]

Answer:

2x greater

Explanation:

3x2=6

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3 years ago

What is magnetisim? What things are magnets?

fredd [130]

A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

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3 years ago

How to change the amount of charge to increase the current

tensa zangetsu [6.8K]

Answer:

Since formula for current is

I = Q/t

Current = Charge / Time

to increase current, the charge must be increased per unit time.

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4 years ago

A roller coaster car rapidly picks up speed as it rolls down a slope. as it starts down the slope, its speed is 4 m/s. but 3 sec

Arisa [49]

Vi = 4 m/s
vf = 22 m/s
t = 3s
a = ?

vf = vi + a * t
vf - vi = a * t
a = (vf - vi) / t
a = (22 - 4) / 3
a = 6 m / s^2

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3 years ago

All electric devices are required to have identifying plates that specify their electrical characteristics. The plate on a certa

masha68 [24]

Answer:

R= 20 ohm

Explanation:

Given that

Current ,I = 6 A

Voltage difference ,ΔV = 120 V

Lets take resistance of the stem iron = R

We know that ,the relationship between current ,voltage difference and resistance is given as

ΔV = I R

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

Now by putting the values in the above equation we get

$R=\dfrac{120}{6}\ ohm$

R= 20 ohm

Therefore the resistance of the steam will be 20 ohm.

3 0

3 years ago