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nataly862011 [7]
3 years ago
15

Question 3 of 20 :

Physics
1 answer:
Yanka [14]3 years ago
3 0

As water cools the volume expands.

Answer: B. The volume of water will increase if cooled from 3°C to 2°C.

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Object A experiences an attractive force of 50 N when it comes close to Object B. If Object A is positively charged, what can yo
denis23 [38]
It is B since they are traveling at the same speed one is positive so the other had to be negative hope this helps;)))))
4 0
3 years ago
Read 2 more answers
Choose the statement that is a misconception about a system in chemical equilibrium. (2 points) The rate of the forward reaction
almond37 [142]

Answer:

The correct answer is "The reactions stop once equilibrum is achieved"

Explanation:

A system is said to have attained equilibrium when the rate of forward reaction is the same/equal to the rate of backward reaction.  The reaction below shows a chemical reaction that is at equilibrium

2N₂O₅ (aq) ⇄ 4NO₂ (aq) + O₂ (aq)

An equilibrium reaction is always a reversible reaction. <u>When the system is at equilibrium (when there is a balance), the concentration of the reactants and products do not change despite the fact that reaction does not stop</u>; what happens however is that the rate at which the reactant(s) are formed (backward reaction) will be equal to the rate at which the product(s) are formed (forward reaction).

From the explanation above, it can be deduced that "The reactions stop once equilibrum is achieved" is a misconception about a system in chemical equilibrium.

8 0
3 years ago
If voltage , V = 100 + 6 volt and current , I = 10+ 0.2 A , then find <br> percentage error in R.
Akimi4 [234]

Explanation:

As we know, resistance is the ratio of voltage used and current flowing through the circuit. So,

<h3>R = V/I</h3>

By error calculation

<h3>∆R/R = [(∆V/V)100] + [(∆I/I)100]</h3>

V = 100 ± 6% V

I = 10 ± 0.2% A

∆R/R= (5/100)×100 + (0.2/10)×100

∆R/R=5+2=7%

<h2>So, percentage error in resistance (R) = ± 7%.</h2>
8 0
3 years ago
A wire in a lamp that is turned on would have a magnetic field around it. true or false.
blondinia [14]
If there's a good bulb in the lamp socket, then there's a current
flowing in the lamp's line cord when the lamp is turned on.

If there's a current flowing through the cord, then there's a magnetic
field around it.
8 0
4 years ago
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The picture below shows a person swinging a toy plane attached to a string in
Elina [12.6K]

Answer:The answer is option C, the point A

Explanation:Just did it

3 0
3 years ago
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