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4 years ago

8

NEED HELP FAST!!! Determine the momentum: An electron (m= 9.1 x 10-31 kg) moving at 2.18 x 106 m/s (as if it were in a Bohr orbi

t in the H atom)

2 answers:

Greeley [361]4 years ago

7 0

Answer:

fuçk you

Step-by-step explanation:

astra-53 [7]4 years ago

5 0

Answer:

p= (9.1 x 10^-31)(2.18 x 10^6) p = 1.9 x 10^-22kg*m/s

Step-by-step explanation:

for i said so

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Maksim231197 [3]

After estimation of decimals problem is written as

=12+3+5+6

There are infinite ways of writing the original problem, i am writing few ways

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2. 12.25+3.05+4.75+6.42----Rounding tenth and Hundreth to nearest ones that is a whole number.

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4 years ago

Bryan is buying notebooks and pens at an office supply store. Notebooks cost $3.59 and pens cost $1.49. He can soend up to $13.

Nesterboy [21]

$13=3.59x+1.49y
.............................

3 0

4 years ago

Kay [80]

Answer:

$f(x)=2(x-2)(x^2+64)$

Step-by-step explanation:

A standard polynomial in factored form is given by:

$f(x)=a(x-p)(x-q)...$

Where <em>p</em> and <em>q</em> are the zeros.

We want to find a third-degree polynomial with zeros <em>x</em> = 2 and <em>x </em>= -8i and equals 320 when <em>x </em>= 4.

First, by the Complex Root Theorem, if <em>x</em> = -8i is a root, then <em>x </em>= 8i must also be a root.

Therefore, we acquire:

$f(x)=a(x-(2))(x-(-8i))(x-(8i))$

Simplify:

$f(x)=a(x-2)(x+8i)(x-8i)$

Expand the second and third factors:

$=(x+8i)x+(x+8i)(-8i)\\\\=(x^2+8ix)+(-8ix-64i^2)\\\\=(x^2)+(8ix-8ix)+(-64i^2)\\\\=x^2-64(-1)\\\\ =x^2+64$

Hence, our function is now:

$f(x)=a(x-2)(x^2+64)$

It equals 320 when <em>x</em> = 4. Therefore:

$320=a(4-2)(4^2+64)$

Solve for <em>a</em>. Evaluate:

$320=(2)(80)a$

So:

$320=160a\Rightarrow a=2$

Our third-degree polynomial equation is:

$f(x)=2(x-2)(x^2+64)$

7 0

3 years ago

Hurry please help Please do the second one

Gnoma [55]

Answer:

B

Step-by-step explanation:

For y to be a function of x, x must only have one value for each y value.

In B, the number 10 comes up twice in the x row. Therefore, y is not a function of x.

6 0

3 years ago

Helphelphelphelphelphelp

Zarrin [17]

Answer:

square

Step-by-step explanation:

a square is all equal sides so its symmetric any way u go

5 0

3 years ago

Read 2 more answers