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elena-14-01-66 [18.8K]
3 years ago
7

The number of wavelengths that pass a point each per second is:

Physics
1 answer:
Lesechka [4]3 years ago
3 0

Explanation:

d frequency I learned it last year

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The number density of gas atoms at a certain location in the space above our planet is about 1.05 × 1011 m-3, and the pressure i
Anettt [7]

To solve this problem we will apply the concepts given by the ideal gas equation, which mathematically can be described as

PV = NkT

Here

P = Pressure

V = Volume

N = Number of atoms of molecules

k = Bolzmann constant

T = Temperature

Rearranging to find the temperature we have

T = \frac{PV}{Nk}

Since the value given in the exercise is a unit of atoms per volume, we will readjust the equation like this

T = \frac{P}{\frac{N}{V}k}

Replacing we have,

T = \frac{(2.7*10^{-10}N/m^2)}{(1.05*10^{11}/m^3)(1.38*10^{-23}J/K)}

T = 186.3K

T = -86.81\°C

Therefore the temperature is -86.81°C or 186.3K

7 0
3 years ago
Add 1299 g and 45.1 kg and express your answer in milligrams (mg) to the correct number of significant figures. A) 4.64 x 10t mg
Triss [41]

Answer: 4.64 × 10^7 mg

Explanation:

Given:

T =1299g + 45.1kg

Convert kg to g

T = 1299g + 45.1kg ×1000g/kg

T = 1299g + 45100g

T = 46399g

T= 4.64 × 10^4 g

Convert to milligram

T = 4.64 × 10^4 g × 1000mg/g

T = 4.64 × 10^7 mg

Therefore, 1299g + 45.1kg = 4.64 × 10^7 mg

4 0
3 years ago
The force in Newtons on a particle directed along the x-axis is given by F(x)=exp(−(x/2)+6) for x≥0 where x is in meters. The pa
HACTEHA [7]

To find the work done on the particle, the following is the solution:

Dw = F dx

W = integral over the path ( F(x) dx)

W = integral from 0 to 1 (e^(-x/5 + 5) dx)

W = -5e^(-x/5 + 5) from 0 to 1

W = 135 J

The work done is 135 J.

3 0
3 years ago
Which equations can be used to solve for acceleration? Check all that apply.<br><br>t = ​
alekssr [168]
Um I would help you but I don’t see the question
8 0
3 years ago
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Witch is least likely to break? explain?
Reptile [31]
Work Done = Force * Distance

This means the least work is exerted by the most distance, so the longer ones are less likely to break.

The shortest one will be the one that breaks easiest.
4 0
3 years ago
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