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3 years ago

PLEASE HELP!!!!!

1 answer:

7 0

Answer: The electroscope had a negative charge before the experiment started. When the negatively charged rod comes near the electroscope more electrons are repelled down to the metal pieces and the metal pieces move farther away from each other.

Step-by-step explanation: First of all, how we know the answer is not A or B is because unlike charges attract each other which means the metal pieces would not spread out. Now that we narrowed it down to C and D we can find the answer, In answer choice D it states that the negatively charged rod attracted the electrons from the electroscope, if that happened then something would happen to the rod, not the electroscope. In answer choice C it says that the rod repels the electrons downward on to the metal pieces, which would cause the metal pieces to spread out since they are both negative. Sorry, I'm not the best with explaining, I hope you understand.

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Diagnostic

seraphim [82]

Answer:

In 26 seconds to complete a transaction, 2 products are being purchased.

Step-by-step explanation:

1 item = 9 seconds

Time taken in all to check out = 8 seconds

Time taken to shop = 26 seconds

Now as check out process takes 8 seconds, so the

Time left to ACTUALLY SHOP = Total Time - Time Used to check out

= 26 seconds = 8 seconds = 18 seconds

Shopping of 1 item = 8 seconds

Shopping of 2 items = 2 x ( Time taken in 1 item) = 2 x 9 = 18 seconds

So, in 18 seconds, 2 clothing item can be selected.

Hence,in 26 seconds to complete a transaction, 2 products are being purchased.

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3 years ago

In the school library, there are 110 fiction books, 250 nonfiction books, and 125 magazines. The ratio of fraction books to maga

Levart [38]

110/125 u can simplify by five which is 22/25. The decimal is 0.88 and the percentage is 100 times the decimal which is 88%

4 0

3 years ago

4 boxes of candy were purchased by the store owner owner. He sold about 2 1/4 boxes of the candy. How many candy was left over.

damaskus [11]

Answer:

1 and 3/4 boxes were left

Step-by-step explanation:

4-2-1/4= 1 3/4

3 0

3 years ago

Please help me thanks

Firdavs [7]

12.2 degrees warmer

5 0

3 years ago

Pls help asap!!! just need answers not work

dem82 [27]

Answer:

b= 5 $\sqrt{3}$ c = 10, x=7 hypotenuse = 7 $\sqrt{2}$

Step-by-step explanation:

A 30-60-90 triangle has the ratios of x-x $\sqrt{3}$ -2x so if x=5, then 5-5 $\sqrt{3}$ - 10

for a 45-45-90, if one leg is 7, so is the other x $\sqrt{2}$ so hypotenuse is 7 $\sqrt{2}$

4 0

3 years ago