3 years ago

What is the charge on an object that has 1. 25 * 10 ^-17.

1 answer:

7 0

Answer: To determine the charge on an object, determine the number of excess protons or excess electrons. Multiply the excess by the charge of an electron or the charge of a proton - 1.6 x 10-19 C.

Step-by-step explanation:

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I don't understand this, I have the answer but I don't know or how to explain my work.

svp [43]

Answer:

Step-by-step explanation:

0.25 = 1/4 = 5/20

0.35 = 35/100 = 7/20

5/20 + 7/20 = 12/20 = 6/10 = 3/5

8 0

3 years ago

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A number increased by 8 gives the same result as a number multiplied by 8. whay is that number?

Airida [17]

$x+8=8x\\
7x=8\\
x=\frac{8}{7}$

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3 years ago

You were told that the amount of time lapsed between consecutive trades on the New York Stock Exchange followed a normal distrib

uysha [10]

Answer:

Step-by-step explanation:

Given that that (X) the amount of time lapsed between consecutive trades on the New York Stock Exchange followed a normal distribution with a mean of 15 seconds.

i.e. X is normal with mean = 15 and unknown std deviation $\sigma$

Given that $P(X$

i.e. P( $z$

z=-1.475 (from normal table)

Hence $\frac{13-15}{\sigma}=-1.475\\\sigma = 1.356$

Using this we find P(X>17) = $P(Z>\frac{17-15}{1.356} \\=P(Z>1.475)\\=0.5-0.428\\=0.072$

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3 years ago

Please help me it’s due and i appreciate it

kakasveta [241]

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4 years ago

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Bill and Felicia each bake cookies for a party. Bill bakes 3 times as many cookies as Felicia. Felicia bakes 24 fewer cookies th

denis-greek [22]

Answer:

b = 3f
f = b -24

Step-by-step explanation:

The word problem describes two relationships between the numbers of cookies baked. When b and f represent the numbers of cookies baked by Bill and Felicia, respectively, those relationships are ...

Bill bakes 3 times as many cookies as Felicia. (b = 3f)
Felicia bakes 24 fewer cookies than Bill. (f = b-24)

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3 years ago