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masya89 [10]
3 years ago
12

Question 9

Physics
1 answer:
MrRa [10]3 years ago
3 0

Answer: it means object initially possessed equal number of positive and negative charges.

Explanation:

Object looks uncharged when it's in neutral state. That's positive charge equals negative charge.

The moment the transfer of charges take place, one gains electron while the other loses electron.

The gainer of electron becomes negatively charged while the looser of electron becomes positively charged.

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Which two options describe physical properties of matter?
Artyom0805 [142]

Answer:

A and E.

Explanation:

Physical properties have to do with things that are not done chemically.

A has to do with light that you can see.

B has to do with Ph (If not A this is your next answer)

C mentions a Patina which is a chemical reaction known as oxidation

D has to do with chemical reactions

E is always correct.  One of the fundamental laws about matter is that it must always have mass.

I am 99% confident in A and E as your answer, but if it is wrong go with B and E.

Hope this helps!

7 0
3 years ago
put the following in order of a full lunar month: full moon, new moon, 1st quarter, waxing gibbous, waning gibbous, waxing cresc
ASHA 777 [7]

The same cycle of phases repeats over and over and over and over and over again, so I could start the list with whatever phase I want, and build the list until I get to the same phase I  started with.  

But the cultures that track their months by the phases of the Moon (traditional Muslim, traditional Jewish, traditional Chinese) all start the new month with the New Moon, so I guess I'll start my list there too.

-- New Moon

-- Waxing Crescent

-- First Quarter

-- Waxing Gibbous

-- Full Moon

-- Waning Gibbous

-- Third Quarter

-- Waning Crescent

-- next New Moon

4 0
3 years ago
Which is the correct equation for the elastic potential energy stored in a spring
salantis [7]

(B)

Explanation:

pe =  \frac{1}{2} k {x}^{2}

3 0
3 years ago
How do we solve questions C and D? I already did A and B and I am confused on how to continue
aleksandrvk [35]

(a) The work done in moving the unit charge from point C to A is 7.62 x 10⁻³ J.

(b) The work done in moving the unit charge from point D to B is 7.62 x 10⁻³ J.

<h3>Work done in moving the charge from C to A</h3>

W = Fd

W = Kq²/d

  • from 0 origin to C, d = √(5² + 5²) = 7.07 m
  • from 0 origin to A, d = 5 m

W(C to A) = W(0 to C) + W(0 to A)

W(C \ to \ A) = - \frac{Kq^2}{7.07} + \frac{Kq^2}{5} \\\\ W(C \ to \ A)  = 0.0586 \ Kq^2\\\\W(C \ to \ A)  = 0.0586 \times 9 \times 10^9 \times (3.8\times 10^{-6})^2\\\\W(C \ to \ A)  = 7.62 \times 10^{-3} \ J

<h3>Work done in moving the charge from D to B</h3>
  • from 0 origin to D, d = √(5² + 5²) = 7.07 m
  • from 0 origin to B, d = 5 m

W(D to B) = W(0 to D) + W(0 to B)

W(D to B) = 7.62 x 10⁻³ J

Learn more about work done here: brainly.com/question/25573309

#SPJ1

8 0
2 years ago
A construction truck collides with the back of a subcompact car. Which vehicle has the larger change in velocity during the coll
Ede4ka [16]
The huge truck has a larger change in its momentum. 

As they are moving at the same speed, the huge truck's mass is much higher and therefore its momentum change is greater.
6 0
4 years ago
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