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Elenna [48]
3 years ago
5

An 80-eV electron impinges upon a potential barrier 100 eV high and 0.20 nm thick. What is the probability the electron will tun

nel through the barrier

Mathematics
1 answer:
wlad13 [49]3 years ago
3 0

Answer:

0.011%

Step-by-step explanation:

See attached picture.

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Which graph represents the solution set of the system of inequalities?
lidiya [134]

y < \dfrac{2}{3}x\\\\y=\dfrac{2}{3}x\\\\for\ x=0\to y=\dfrac{2}{3}(0)=0\to(0,\ 0)\\\\for\ x=3\to y=\dfrac{2}{3}(3)=2\to(3,\ 2)\\\\y\geq-x+2\\\\y=-x+2\\\\for\ x=0\to y=-0+2=2\to(0,\ 2)\\\\for\ x=2\to y=-2+2=0\to(2,\ 0)

y < \dfrac{2}{3}x

the dotted line. shadow under the line

y\geq-x+2

solid line. shadow above the line

Answer in the attachment (graph C).

8 0
3 years ago
Someone plz help me
postnew [5]
The surface area is 54 square inches
8 0
3 years ago
Amanda's checking account balance was -$245. She deposited $60 three times. What is her current balance?
VLD [36.1K]

Answer:

Amanda currently has a balance of negative $65

Step-by-step explanation:

60×3=180

-245+180= -65

8 0
3 years ago
The volume of a cube can be calculated using the formula V = s^3, where s is the side length. What is the volume of a cube with
kumpel [21]

Answer:

Volume of a cube with side length 1/3 of a meter = 1/27m^3

Step-by-step explanation:

Let

1 meter = m

V = s^3

Where,

V= volume of a cube

s= side length

s = 1/3 of a meter

= 1/3 × m

= 1/3m

V = s^3

= 1/3^3

= 1/3m * 1/3m * 1/3m

V = 1/27m^3

Volume of a cube with side length 1/3 of a meter = 1/27m^3

3 0
3 years ago
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chubhunter [2.5K]

Answer:

the answer is a

Step-by-step explanation:

i got the question right. please mark me brainliest. look at a population density map of southeast Asia

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3 years ago
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