Sphere a has a radius of 24 centimeters, and sphere b has a diameter of 42 centimeters. the radius of sphere a is multiplied
what factor to produce the radius of sphere b?
- 4/7
- 7/8
- 8/7
- 7/4

answer:

7/8

step-by-step explanation:

a's radius = 24

b's radius = 42/2 = 21

21/24 = 7/8

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step-by-step explanation:

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v