When each metal is hit with light at the minimum wavelength (see question #1) can you vary the intensity of the light to start emitting electrons?

there are no correct statementd on the list of choices you provided.

the body's situation won't change the forces are equal opposit and on the same body

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach