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blsea [12.9K]
3 years ago
15

If the resistance of a circuit is 3 ohms, and the voltage produced by the cell in the

Physics
1 answer:
skad [1K]3 years ago
5 0

Answer:

The magnitude of the current is 4A (amperes).

Explanation:

We can use V=IR, where V stands for Voltage, I stands for current, and R stands for resistance to solve this problem.

A such:

V=12\\I=\text{ ?}\\R=3\\\\\text{Solve for I}:\\12=3I\\3I=12\\I=\frac{12}{3}\\I=4\text{A}

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kiruha [24]

Answer:

C.) The same as one

Explanation:

Because the Ferris wheel has two bars at the side that keep it in place so it doesn't roll away. The Ferris wheel only moves in one place. If the ferris wheel did roll then you would have a greater than one. If it did roll it would be dangerous.

5 0
2 years ago
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According to Newton, which of these will determine if and how an object will move?
mr Goodwill [35]

Answer:

3

Explanation:

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Which of these would be best explained by the Doppler effect? A) The change in frequency as you shorten a guitar string. B) The
Lady_Fox [76]

B)

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4 0
2 years ago
A 2 kg rock is at the edge of a cliff 20 meters above a lake The rock becomes loose and falls toward the water below. Calculate
natima [27]

Answer:

The potential energy (P.E) at the top is 392 J

The kinetic energy (K.E) at the top is 0 J

The potential energy (P.E) at the halfway point is 196 J.

The kinetic energy (K.E) at the halfway point is 196 J.

Explanation:

Given;

mass of the rock, m = 2 kg

height of the cliff, h = 20 m

speed of the rock at the halfway point, v = 14 m/s

The potential energy (P.E) and kinetic energy (K.E) when its at the top;

P.E = mgh

P.E = (2)(9.8)(20)

P.E= 392 J

K.E = ¹/₂mv²

where;

v is velocity of the rock at the top of the cliff = 0

K.E = ¹/₂(2)(0)²

K.E = 0

The potential energy (P.E) and kinetic energy (K.E) at the halfway point;

P.E = mg(¹/₂h)

P.E = (2)(9.8)(¹/₂ x 20)

P.E = 196 J

K.E = ¹/₂mv²

where;

v is velocity of the rock at the halfway point = 14 m/s

K.E = ¹/₂(2)(14)²

K.E = 196 J.

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2 years ago
The end<br>ons.<br>descr<br>write<br>al<br>intro<br>defin<br>confi<br>defin<br>neutr​
lubasha [3.4K]

put it in good terms okay

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2 years ago
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