Answer:
An X-ray is used to take pictures of your bones. The waves that are used are known as radiation waves.
when the two waves interfere with eachother to make a dark spot the periodic difference of the two waves is π . the wave length for 2π is 600nm
. ie. for π difference it is 300nm
Answer:
I don't know why you are asking me?
The gravitational force on the car is
(9.8 m/s^2) x (the car's mass in kg).
The unit is newtons.
