Circuit a has four 3.0-ohm resistors connected in
series with a 24-volt battery, and circuit b has two
3.0-ohm resistors connected in series with a
24-volt battery. compared to the total potential
drop across circuit a, the total potential drop
across circuit b is
(1) one-half as great (3) the same
(2) twice as great (4) four times as great

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.

Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?

What is the technical name for super glue type adhesives?