Wave speed = frequency * wavelength
Input the numbers into this equation :
Wave speed = 200 * 3
Work it out and you will get the answer :
Wave speed = 600 m/s
This passage is about how people research food, how much calories, much much energy you get from it, etc. It also explains the different kinds of food get a certain amount of calories. Some calories burn quicker than the other.
The vector sum of forces acting on a non-accelerating object equals zero.
equation form: ΣF = 0
This question is probably referring to heat energy transferring from the car to its surroundings.
