What is the wavelength of a ball that is 25.0 g traveling at 90.0 miles per hour (40.2 m/s)?
I tried solving it by using
c = wavelenth* frequeny
but i get the wron answer
Why did you use the wave equation. What is the de Broglie wavelength?
http://en.wikipedia.org/wiki/Matter_wave
To find the wavelength of an object, you need to use the formula:
wavelength = speed / frequency
However, in this case, you are given the speed of the object in miles per hour (mph) instead of meters per second (m/s), which is the standard unit of speed used in physics calculations. So, first, you need to convert the speed of the ball from mph to m/s.
To convert from mph to m/s, you can use the conversion factor: 1 mph = 0.44704 m/s. Multiply the speed in mph by this conversion factor to get the speed in m/s.
Speed in m/s = 90 mph * 0.44704 m/s = 40.23 m/s (rounded to two decimal places)
Now that you have the speed in m/s, you can use the formula to find the wavelength:
wavelength = speed / frequency
You are given the speed (40.23 m/s) but not the frequency. To find the frequency, you need more information about the ball or the wave it produces. But assuming that you are referring to an ordinary object like a ball, it does not emit a wave with a measurable frequency.
Hence, without the frequency, it is not possible to calculate the wavelength.