Imagine you could travel in a straight line through Earth from a point on one side and come out on the other side. What COMPOSITIONAL LAYER would you travel through in the exact center of Earth? A) core

B) crust

C) mesosphere

D) lithosphere

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.

Name two kinds of practical electric pumps.

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