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elixir [45]
3 years ago
12

Helppppppppppppppp.......

Physics
1 answer:
kow [346]3 years ago
8 0

Answer:

9013 m/s

Explanation:

hope it helped!!!

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How will a current change if the resistance of a circuit remains constant while the voltage across the circuit decreases to half
beks73 [17]

Answer:

1. The current will drop to half of its original value.

Explanation:

The problem can be solved by using Ohm's law:

V=RI

where

V is the voltage across the circuit

R is the resistance of the circuit

I is the current

We can rewrite it as

I=\frac{V}{R}

In this problem, we have:

- the resistance of the circuit remains the same: R' = R

- the voltage is decreased to half of its original value: V'=\frac{V}{2}

So, the new current will be

I'=\frac{V'}{R'}=\frac{V/2}{R}=\frac{1}{2}\frac{V}{R}=\frac{I}{2}

so, the current will drop to half of its original value.

4 0
3 years ago
An object has a mass of 7 kg and is accelerating at 4 m/s2. How far would the object move if it took 168 J of work to move it?​
KIM [24]

Answer:

6m

Explanation:

use work =force×distance

6 0
3 years ago
If a light ray from a candle strikes a mirror at an angle of 40° with the normal, at what angle will the ray reflect?
pav-90 [236]

Answer:

the correct answer is b: 25

8 0
3 years ago
Give two examples of common force fields and name the sources of these fields.
algol13
Electric force from electomagnetic force and force of gravity from gravitational force
4 0
3 years ago
I don't get this question could someone help out
ratelena [41]

Answer:

that would probably be Rock A is harder than Rock B

Explanation:

Because if Rock A can scratch Rock B then it obviously means that Rock A is harder.

Right?

Hope This Helps You Out♡

8 0
3 years ago
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