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const2013 [10]
3 years ago
13

Help me please asap :(

Physics
1 answer:
mixer [17]3 years ago
8 0
17. a
18. c
19. a
20. c
21. c
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Explain the term equinox in your own words.
In-s [12.5K]

Answer: Equinox comes from the Latin words aequi, which means "equal," and nox, which means "night." The vernal equinox is considered the first day of spring: finally, the day and night are of equal length.

Explanation: UwU O///O

5 0
3 years ago
A force of 13 N is used to slide a 0.8 kg book across a table. What is the magnitude of the book’s acceleration?
Mkey [24]

Explanation:

acceleration=F/m

a=13/0.8

a=16 25m/s²

8 0
4 years ago
Consider a one-dimensional crystal (similar to a carbon nanowire) with length 10 um and lattice spacing 0.1 nm.
Finger [1]

Answer:

a)  Fermi level = 600 electron-volts

b) \frac{2.04 * 10^{13} }{\sqrt{E} }

Explanation:

Given data:

length of one-dimensional crystal = 10 um

Lattice spacing = 0.1 nm

A) Determine the Fermi level assuming one electron per atom

Total length = 10 <em>u</em>m

Interatomic separation of a = 0.1 nm

in this case the Atom has one electron therefore the number of electrons = 10^5  and the number of states Ns = gsN = 2 * 10^5  ( attached below is some part of the solution )

hence : Fermi level = 600 electron-volts

B) Determine the density of states as a function of electron energy

attached below is the detailed solution

5 0
3 years ago
The precision of a balance is ±0.02 g. The accepted value for a measurement is 26.86 g. Which measurement is in the accepted ran
HACTEHA [7]

Answer:

Ben türküm sizi anlamıyom kb

hepiniz malsınız amk

7 0
3 years ago
Read 2 more answers
If you ride your bike at an average speed of 2 km/h and need to travel a total distance of 20 km, how long will it take you to r
love history [14]

Answer:

Time taken to reach your destination will be 10hours

Explanation:

Recall the formula for Speed;

speed=Total distance/Total time taken

Speed=2km/h

Total distance=20km

Time taken=x

let x be the unknown time taken

Input each values into the formula;

2=20/x

Making x subject of the equation

x=20/2

x=10

Total time taken =10hours.

3 0
3 years ago
Read 2 more answers
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