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svet-max [94.6K]
2 years ago
11

The de broglie wavelength of an electron with a velocity of 7. 40 × 106 m/s is ________ m. The mass of the electron is 9. 11 × 1

0-28 g.
SAT
1 answer:
schepotkina [342]2 years ago
7 0

Answer:

1.64 x 10^-17 J

Explanation:

To calculate the kinetic energy of the electron, we use the equation:

E = 1/2mv2

Learn more at:

brainly.com/question/12407334

_AnnieTheDreamGirl, 3/7/2022

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In the nucleus that where the dna is
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3 years ago
What it means that [If x is a factor of p(x), what is the value of k?]
kompoz [17]

Answer:

k = -4

Explanation:

Given

P(x) = (3x^2 - 5)(x + k) - 20

x is a factor

Required

Solve for k

x is a factor means that the polynomial can be divided successfully by x.

In other words, x is a zero of the polynomial.

i.e.

x = 0 and P(x) = 0

Substitute 0 for x in P(x)

P(x) = (3x^2 - 5)(x + k) - 20

P(x) = (3*0^2 - 5)(0 + k) - 20

P(x) = (0- 5)(k) - 20

P(x) = (-5)(k) - 20

P(x) = -5k - 20

Substitute 0 for P(x)

0 = -5k - 20

Collect Like Terms

5k = - 20

Divide both sides by 5

k = -4

7 0
2 years ago
What do the writers of this petition mean when they claim that the spoils system is ""injurious to political parties"" and ""fru
faust18 [17]

Answer:

its b

Explanation:

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3 years ago
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Julia, ernesto y pablo están esperándolo. (julia, ernesto y pablo are waiting for it (the bus).)
Eddi Din [679]

Julia, Ernesto y Pablo are waiting for it (the bus).) is a correct statement.

<h3>What is the statement about?</h3>

The statement Julia, Ernesto y Pablo están esperándolo is a response to a previously given question which is Julia, Ernesto and Pablo are waiting for him in English.

Julia, Ernesto y Pablo are waiting for it the bus is also known to be the response to the first question and as such the tenses are correct.

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brainly.com/question/7150507

#SPJ1

6 0
2 years ago
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