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Marat540 [252]
2 years ago
14

A system that can be affected by the outside environment, by an exchange of matter or energy is ______.

Physics
1 answer:
larisa86 [58]2 years ago
4 0

\sf{Answer:}

A system that can be affected by the outside environment, by an exchange of matter or energy is an open physical system .

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Because the fossil show layers and those layers show what kind of settlements where left behind at that layer
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In what way does the article contrast small cars with large cars?
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C.

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3 0
2 years ago
If a car accelerates from 0 to 10 m/s in 4 seconds, and the mass of the car is 1500 kg. What force is created by the car?​
Minchanka [31]

Answer:

PLS MARK BRAINLIEST

Explanation:

f=m (v- u)/t

u=0m/s

v=10m/s

t=4 secs

m=1500kg

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f=3750N

5 0
3 years ago
What is that distance traveled by an arrow going 78 m/s for 5 seconds
pshichka [43]

Explanation:

velocity=distance/time

distance= velocity×time

distance= 78×5=390m

8 0
2 years ago
W
Alona [7]

In the circuit, the total current is 60 A and the voltage is 240 V. If R1

resistance is 20 Ω, then the R2 resistance  would be 5 Ω

<h3>What is resistance?</h3>

Resistance is the obstruction of electrons in an electrically conducting material. The SI unit of the resistance is Ohm

The mathematical relation for resistance can be understood with the help of the empirical relation provided by Ohm's law.

V=IR

where V is the voltage

I is the current

R is the resistance

For the given problem V= 240 V and I = 60 A

R = V/I

R =240/60

R =4 Ω

For calculating equivalent resistance in parallel combination.

1/Re = 1/R1  + 1/R2

1/4 = 1/20 +  1/R2

R2 = 5 Ω

Thus , the R2 resistance would be 5 Ω, therefore the correct answer is option B.

Learn more about resistance here

brainly.com/question/14547003

#SPJ1

7 0
1 year ago
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