1. A) radio wave has a wavelength of 21 cm. What is the wavelength in meters? (Give your answer in meters rounded to exactly 2 decimal places). B)Use your previous answer and the speed of light (c = 3 · 108 m/s) to calculate the frequency of a 21 cm radio wave. Give your answer in Hz, no decimal places. C)Use your previous answer to calculate the frequency of a 21 cm radio wave. This time, give your answer in GHz, rounded to exactly one decimal place. (Note that 1 GHz = 109 Hz).

age) #5: A certain rocket engine has a temperature when in use of approximately 182°C. If left to cool in a 20°C room for 24 hours, it is known that the engine temperature will be 26°C. If the engine obeys "Newton's Law of Cooling", how long in hours would the engine have cool after use before it reaches 74°C? #5: answer correct to 2 decimals Save Your work has been saved!_(Back to Admin Page)

A dust particle is suspended in the air (floating due to a small updraft and its own low mass) when a powerful loudspeaker plays a very low note (2 Hz so it can’t be heard but you can actually see the speaker move!). How will the dust particle move as a result of the speaker 
being turned on? Question 3 options:   A)  The dust particle will move up and down.   B)  The dust particle will be pushed across the room.   C)  The dust particle will move in a circular path.   D)  The dust particle will move side to side.

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I need answers for problems 13, 14, and 15 pertaining to the print provided.   NOTE: If you refuse to answers all 3 parts and insist on wasting my question by breaking down 1 simple question into 3 parts, then just leave it for someone else to answer. Thank you.

Could you please fix my code it’s supposed to look like the graph that’s on the picture. But the lines do not cross eachother at the beginning. Could you make the lines look like the lines on the graph? Use this code in MATLAB and fix it. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Define your seed here seed = 50; rand('seed',seed); % Set the seed for reproducibility % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves with a reduced degree of 2 pDiesel = polyfit(carPosition, CO2Diesel, 2); pPetrol = polyfit(carPosition, CO2Petrol, 2); % Generate points for best fit lines fitDiesel = polyval(pDiesel, carPosition); fitPetrol = polyval(pPetrol, carPosition); % Plotting the data figure; hold on; % Plot Diesel best fit line…

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Hello I’m trying to make the graph that you see in the picture but I am having trouble on make the two lines that you see on the graph to over lap each other, I don’t want the two lines to be separate I want the two lines on top of eachother like you see in the picture please fix the code so that the Diesel line is on top of the Petrol line as seen on the picture. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Fix the random seed for reproducibility rng(45); % Assumed positions of cars CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves pDiesel = polyfit(carPosition, CO2Diesel, 3); pPetrol = polyfit(carPosition, CO2Petrol, 3); % Generate points for best fit lines fitDiesel = polyval(pDiesel, carPosition); fitPetrol = polyval(pPetrol, carPosition); % Plotting the data figure; hold on;…

Please make the exact graph that you see in the picture, along with the graph are numbers that are data. Please make the exact graph do not make anything thing different, the blue and orange circles should be there and the lines should be the same including the titles. Please make sure everything is exactly the same. Use MATLAB, and send the code and please make sure no error signs comes up. Take your time please I need help.

No need guideline answer ok.  Solve both write RRL. ABOUT THESE 2 ITEMS.  NOTE NO NEED EXTRA EXPLANATION ONLY NEED FOR OTH 1 PARAGRAPH EACH PUT REF END POINTS OK. DONT NEED GUIDELINE OKK. IF ANSWER GUIDELINE I WILL DISLIKE OKK 1. height of sweet potato plants; 2. programable  speed of a rover: . something that says that a rover is programmed via speed, that it doesn't matter if the weight of the rover is decreasing from time to time. something that says that if you programmed a rover to go 5kph it will remain 5kph even if you put something heavy on it.