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Triss [41]
3 years ago
9

BRAINLEST HURRY PLZZ HELP the options for number 1 2 and 3 are A B C D

Physics
2 answers:
SCORPION-xisa [38]3 years ago
6 0
1. B
2.C
3.D
............



coldgirl [10]3 years ago
3 0
1.B
2.D
3.C
read at ur own risk
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For convection to occur,
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1:A pattern or grouping of stars that people imagine representing a figure, an animal or an object.
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The upward force exerted on an object falling through air is _____.
stira [4]

(C) Air Resistance

<u>Explanation:</u>

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3 years ago
Help with 1 2 and 3 please
geniusboy [140]

1. Amperes, is the SI unit (also a fundamental unit) responsible for current.

2. I = \frac{q}{t} Δq over Δt technically

Rearrange for Δq

I x Δt = Δq

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Δq = 0.0075

Divide this by the fundamental charge "e"

Electrons: 0.0075 / 1.60 x 10^-19

Electrons: 4.6875 x 10^16 or 4.7 x 10^16

3.  So we know that the end resistances will be equal so:

ρ = RA/L

ρL = RA

ρL/A = R

Now we can set up two equations one for the resistance of the aluminum bar and one for the copper: Where 1 represents aluminum and 2 represents copper

\frac{p1L1}{A1}  = \frac{p2L2}{A2}\\

We are looking for L2 so we can isolate using algebra to get:

\frac{A2(\frac{P1L1}{A1}) }{P2} = L2

If you fill in those values you get 0.0205

or 2.05 cm



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3 years ago
Why is the moon tilted​
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