Answer:
Radiation waves (From the sun)
Electromagnetic waves do not require material medium for propagation. Radiowaves have the longest wavelength but the least frequency.
Gamma ray has the shortest wavelength but the highest frequency.
The gamma rays and x-rays due to their high frequency, they can disturb the medium they pass through. They have high energy that can cause damage to the matter the come across.
The answer is: "nothing".
In fact, it's totally random. When there is a certain amount of atoms of a radioactive element, it's not possible to predict which atom will decay first and which one will decay later. We can only predict the amount of atoms that will be left after a certain time t (if we know the half-life of the element), but we can't predict which atom will decay first.
Answer:
PS = ½(40)(0.05²) = 0.05 J
Explanation: