Aheating element is made by maintaining a potential difference of 65.0 v across the length of a nichrome wire that has a 3.11 × 10–6 m2 cross section. nichrome has a resistivity of 5.00 × 10–7 ω·m. (a) if the element dissipates 6580 w, what is its length? (b) if 106 v is used to obtain the same dissipation rate, what should the length be?

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material