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Alenkasestr [34]
2 years ago
6

Chemical equations should be balanced so that they demonstrate the law of conservation of mass. Which of the following statement

s about balanced chemical equations is correct?
A
The products must contain the same numbers and types of atoms as the reactants.

B
The products must contain the same arrangement of atoms as found in the reactants.

C
The products must contain the same numbers but not the same types of atoms as the reactants.

D
The products must contain the same types but not the same numbers of atoms as the reactants.
Physics
1 answer:
faust18 [17]2 years ago
7 0

Answer:

The products must contain the same numbers and types of atoms

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atroni [7]
Oil <span>must be mined from underground 

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Oil also is NOT easily replenished

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4 0
3 years ago
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What's something that I've done in my life that is related to physics
Allisa [31]

That's a very difficult question to answer, because you give us
no information regarding what you have done in your life. 

We can only assume that you have most likely breathed on occasion,
floated on your back in the ocean, lake or pool, maybe fallen off of a
ladder or out of bed, felt the warmth of the sun on your cheek, seen
a rainbow after a rainshower, heard the sound of thunder during a
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6 0
3 years ago
How much energy is stored in a 2.80-cm-diameter, 14.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800
ozzi

Answer:

The energy stored in the solenoid is 7.078 x 10⁻⁵ J

Explanation:

Given;

diameter of the solenoid, d = 2.80 cm

radius of the solenoid, r = d/2 = 1.4 cm

length of the solenoid, L = 14 cm = 0.14 m

number of turns, N = 200 turns

current in the solenoid, I = 0.8 A

The cross sectional area of the solenoid is given as;

A = \pi r^2\\\\A = \pi (0.014)^2\\\\A = 6.16*10^{-4} \ m^2

The inductance of the solenoid is given by;

L = \frac{\mu_0 N^2A}{l} \\\\L =  \frac{(4\pi*10^{-7})(200^2)(6.16*10^{-4})}{0.14}\\\\L = 2.212*10^{-4} \ H

The energy stored in the solenoid is given by;

E = ¹/₂LI²

E = ¹/₂(2.212 x 10⁻⁴)(0.8)²

E = 7.078 x 10⁻⁵ J

Therefore, the energy stored in the solenoid is 7.078 x 10⁻⁵ J

8 0
3 years ago
which statement is a Hypothesis? A: Most of the earthworms moved to the shaded area during experiment. B: If an earthworm is giv
True [87]

Answer:

B

Explanation:

It's saying what you think

3 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS AND I NEED ALL CORRECT ANSWERS ONLY!!!
valentinak56 [21]

Answer:

Electric Current

Explanation:

The flow (or free movement) of these electrons through a wire.

Pretty sure :)

6 0
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