Question

i need help yall please....will give medal

Answer 1

A proton has a mass of 1.67 × 10–27 kilogram, and an electron has a mass of 9.11 × 10–31 kilogram. Which is greater, the mass of a proton or the mass of an electron? Explain.

Answer 2

*10 to the power of 27 10 to the power of 31

Answer 3

The answer would be the biggest number, so 9.11 × 10–31 kilogram would be the answer, from my understanding. You might need someone else to answer though.

Answer 4

hello?

Answer 5

i concure the particle with the largest mass is the electron because its mass is 60.1kg and the protons mass is -10.3kg (how something can have a negative mass i dont know but used a calculator and triple checked i put everything in properly) so meow is correct, the answer should be electron (9.11*10-31)

Answer 6

this is what my answer choices are......
A proton has a mass of 1.67 × 10 to the power of negative 27 kilogram, and an electron has a mass of 9.11 × 10 to the power of negative 31 kilogram. Which is greater, the mass of a proton or the mass of an electron? Explain.
A
The mass of an electron is greater because 9.11 is greater than 1.67.
B
The mass of an electron is greater because –31 is greater than –27.
C
The mass of a proton is greater because –27 is greater than –31.
D
The mass of a proton is greater because 1.67 is greater than 9.11

Answer 7

@mathmale can u please help me

Answer 8

hey can u help me

Answer 9

@cubanita11
Have you done scientific notation yet?

Answer 10

yes i am learningit now

Answer 11

Good, can you please convert
5.2\(\times 10^-2\)
to decimal notation?

Answer 12

0.02.??

Answer 13

Try again please, it should have read:
\(5.2\times 10^{-2}\)

Answer 14

i dont get it .????????? sorry

Answer 15

\(5.2\times 10^{-2}\)
means 5.2/100 (- means divide, 2 means number of zeroes after 1)
so
\(5.2\times 10^{-2}\)
equals
5.2/100 = 0.052

An easier way is to shift the decimal point by 2 places. To the left for -2, and to right right for +2.

Are you following?

Answer 16

right yea i m following

Answer 17

@mathmate

Answer 18

Good!
Which number is larger,
0.01 or 0.0001
?

Answer 19

0.01

Answer 20

Exactly! Very well.
What would 0.01 in scientific notation, and 0.0001?

Answer 21

it would be 10 i think?

Answer 22

Recall that scientific notation requires the decimal part be between 1 and 9.999999.
So 0.01 would be \(1\times 10^{-2}\) in scientific notation.

Answer 23

Now can you please convert 0.0001 in scientific notation?

Answer 24

1x10 to the power of -4?

Answer 25

Exactly! Very well...again!
Now if you compare the two numbers,
0.01=\(1\times 10^{-2}\)
0.0001=\(1\times 10^{-4}\)
we see that 0.01 is larger than 0.0001, but we also notice that 0.01 has an exponent of -2, and 0.0001 has an exponent of -4.
There is a fact which can be used to compare number. Do you know what?

Answer 26

no

Answer 27

When we compare two numbers in scientific notation, i.e. if the decimal part is between 1 and 9.9999.., the number with a larger exponent is a bigger number.
for example,
\(1.2\times 10^{-2}\)
is greater than
\(9.67\times 10^{-3}\)
because -2 is greater than -3.

When the exponents are equal, THEN we compare the decimal part of the numbers,
for example,
\(1\times 10^{-2}\)
is smaller than
\(9.7 \times 10^{-2}\)
because the exponents are equal, and since 1 < 9.7, so the first number is smaller.

Does that make sense to you?

Answer 28

yes thank u very much

Answer 29

Good, so is a proton heavier or an electron?

Answer 30

a proton

Answer 31

Why so?

Answer 32

bcuz my teacher told me.........

Answer 33

So unfortunately you have not applied what you just learned, but that's ok.

Answer 34

When you have time, feel free to read the blah... in my profile.

Answer 35

i am stupid lmao i didnt take scientific notation in mind omg sorry about that...

Answer 36

@Lord2clash
That's not a problem. Important in life is we learn, from mistakes or otherwise!