A Microwave oven operates at 2.60 GHz. what is, №14634306, 29.12.2020 16:14

Physics

Amicrowave oven operates at 2.60 ghz . what is the wavelength of the radiation produced by this appliance? express the wavelength numerically in nanometers. view available hint(s)

Step-by-step answer

P Answered by PhD

3

The relationship between frequency f and wavelength $\lambda$ for an electromagnetic wave is
$f= \frac{c}{\lambda}$
where c is the speed of the wave, which for an electromagnetic wave is the speed of light:
$c=3 \cdot 10^8 m/s$
The frequency of the microwave radiation is
$f=2.60 GHz=2.60 \cdot 10^9 Hz$ , so by using this number in the previous formula we find the wavelength of the radiation:
$\lambda= \frac{c}{f}= \frac{3\cdot 10^8 m/s}{2.60 \cdot 10^9 Hz} =0.11 m=0.11 \cdot 10^9 nm$

Physics

Amicrowave oven operates at 2.60 ghz . what is the wavelength of the radiation produced by this appliance? express the wavelength numerically in nanometers. view available hint(s)

Step-by-step answer

P Answered by PhD

3

The relationship between frequency f and wavelength $\lambda$ for an electromagnetic wave is
$f= \frac{c}{\lambda}$
where c is the speed of the wave, which for an electromagnetic wave is the speed of light:
$c=3 \cdot 10^8 m/s$
The frequency of the microwave radiation is
$f=2.60 GHz=2.60 \cdot 10^9 Hz$ , so by using this number in the previous formula we find the wavelength of the radiation:
$\lambda= \frac{c}{f}= \frac{3\cdot 10^8 m/s}{2.60 \cdot 10^9 Hz} =0.11 m=0.11 \cdot 10^9 nm$

Physics

Amicrowave oven operates at 2.60 ghz . what is the wavelength of the radiation produced by this appliance?

Step-by-step answer

P Answered by PhD

1

10.3 cm The wavelength will be the distance that light travels in 1 second divided by the frequency of the radiation. Since the over operates at 2.60 ghz, the frequence is 2.6 billion times per second, or 2.60 x 10^9. The speed of light is defined as 299792458 m/s exactly. So 299792458 m/s / 2.60 x 10^9 1/s = 0.10337671 m = 10.337671 cm Since we only have 3 significant digits, the answer rounds to 10.3 cm

Physics

Amicrowave oven operates at 2.60 ghz . what is the wavelength of the radiation produced by this appliance?

Step-by-step answer

P Answered by PhD

1

10.3 cm The wavelength will be the distance that light travels in 1 second divided by the frequency of the radiation. Since the over operates at 2.60 ghz, the frequence is 2.6 billion times per second, or 2.60 x 10^9. The speed of light is defined as 299792458 m/s exactly. So 299792458 m/s / 2.60 x 10^9 1/s = 0.10337671 m = 10.337671 cm Since we only have 3 significant digits, the answer rounds to 10.3 cm

Chemistry

How many moles of HF are in 30.mL of 0.15MHF(aq) ?

Step-by-step answer

P Answered by Master

Answer: 0.0045 mol
Explanation: Convert 30 ml to l: 30 mL = 0.03 L
Molarity = mol/l
mol = molarity * L
mol = 0.15 * 0.03 = 0.0045 mol
Answer: 0.0045 mol
Explanation: Convert 30 ml to l: 30 mL = 0.03 L
Molarity = mol/l
mol = molarit

Chemistry

LaToya uses 50 newtons (N) of force to pull a 500 N cart. Which statements are correct about calculating LaToya s mechanical advantage? Select all that apply.A. The input force is 50 N.B. The output force is 50 N.C. The input force is 500 N.D. The output force is 450 N.E. The mechanical advantage is 10.F. The mechanical advantage is 100.

Step-by-step answer

P Answered by Master

Answer:

A

Step-by-step explanation:

The input force is 50 N. But it will not create not any change. No mechanical advantage is observed.

Chemistry

Fiona claims that the diagram below shows simple machines, but Chad claims that it shows a compound machine. A man pushes a shopping cart up a ramp. Which statement best explains who is correct? Fiona is correct because less than three machines are shown in the diagram. Fiona is correct because the diagram shows two individual simple machines. Chad is correct because more than one machine is shown in the diagram. Chad is correct because the diagram shows two simple machines doing a job.

Step-by-step answer

P Answered by Specialist

Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation:
A mechanical device using which we can change the direction or magnitude of force applied is known as simple machine.
For example, in the given diagram there are two individual simple machines.
The machine helps in changing the direction or magnitude of force applied by the man. As a result, it becomes easy for him to carry different things easily from one place to another.
Thus, we can conclude that the statement Fiona is correct because the diagram shows two individual simple machines, is correct.
Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation

Chemistry

Based on the equation, how many grams of Br2 are required to react completely with 29.2 grams of AlCl3 (5 points)? 2AlCl3 + 3Br2 → 2AlBr3 + 3Cl2

Step-by-step answer

P Answered by PhD

1

Answer:

52.6 gram

Step-by-step explanation:

It is clear by the equation 2(27+3×35.5)= 267 gm of AlCl3 reacts with 6× 80 = 480 gm of Br2 . So 29.2 gm reacts = 480× 29.2/267= 52.6 gm

Chemistry

Give an example of a protein structure that would give positive test with Molisch’s Reagent

Step-by-step answer

P Answered by PhD

glycoproteins

Explanation:

A positive reaction for Molisch's test is given by almost all carbohydrates (exceptions include tetroses & trioses). It can be noted that even some glycoproteins and nucleic acids give positive results for this test (since they tend to undergo hydrolysis when exposed to strong mineral acids and form monosaccharides).

Chemistry

what is the volume of a container that contains 24.0 grams of N2 gas st 328K and .884 atm?

Step-by-step answer

P Answered by PhD

Answer:

Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

Explanation:

In this case, you know:

P= 0.884 atm

V= ?

n= Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N 0.857 moles (where 28 g/mole is the molar mass of N₂, that is, the amount of mass that the substance contains in one mole.)

R=0.082 Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

T= 328 K

Replacing in the ideal gas law:

0.884 atm×V= 0.857 moles× 0.082 Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N ×328 K

Solving:

Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

V= 26.07 L

The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

A Microwave oven operates at 2.60 GHz. what is the wavelength of the radiation produced by this appliance?

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