Alpha particles cannot penetrate deeply into solids because they
have low mass
have high mass
have low velocity
have high velocity
have no mass

What is the mass of 4 molecules of co2

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!