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Snowcat [4.5K]
2 years ago
14

When three 30-ohm resistors are connected in parallel across a 9-volt source, the total current is

Physics
1 answer:
PSYCHO15rus [73]2 years ago
4 0
—-Answer in photo :)

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Can someone explain it with steps?
Anton [14]

Answer:

Option C is the correct answer

Explanation:

Distance travelled by car during reaction time

=15\times0.4\\\\=6m

The car stopped before hitting the animal by 1 m

Distance travelled during deceleration is 21-6-1=14m

Hence by v^2=u^2+2as

We have

0^2=15^2+2 \cdot a \cdot 14\\\\a=\frac{-225}{28} \\\\=-8.03m/s^2

Option C is the correct answer

5 0
3 years ago
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What type of heat transfer is happening when the sun warms your face
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Answer:it might be radiation


Explanation:
7 0
3 years ago
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When a driver presses the brake pedal, his car can stop with an acceleration of -5.4m/s^2. How far will the car travel while com
Dahasolnce [82]
Information that is given:
a = -5.4m/s^2
v0 = 25 m/s
---------------------
S = ?
Calculate the S(distance car traveled) with the formula for velocity of decelerated motion:
v^2 = v0^2 - 2aS
The velocity at the end of the motion equals zero (0) because the car stops, so v=0.
0 = v0^2 - 2aS
v0^2 = 2aS
S = v0^2/2a
S = (25 m/s)^2/(2×5.4 m/s^2)
S = (25 m/s)^2/(10.8 m/s^2)
S = (625 m^2/s^2)/(10.8 m/s^2)
S = 57.87 m
3 0
3 years ago
A scientist prepares a colloidal solution and pours it into a glass tank. She then flashes a beam of white light into one end of
balu736 [363]
The answer is C) <span>The higher frequencies of visible light were scattered by the colloid particles.</span>
5 0
3 years ago
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Justin notices a particular type of caterpillar feeds only on cottonwood trees in his neighborhood.In which way has Justin incre
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Justin notices a particular type of caterpillar feeds only on cottonwood trees in his neighborhood.In which way has Justin increased his scientific knowledge, Justin increased his powers of scientific observation. His observation is empirical evidence. Empirical relies on observation  and experimentation.

It will help you..........

7 0
3 years ago
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