Ascientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal. how can she find out?
a. measure the metal’s temperature.
b. check for the presence of alpha, beta, and gamma particles.
c. look for the presence of niobium compounds.
d. place the niobium in a pressurized container, and see if the lump becomes warmer.

When the water vapor cools it condenses select a number that represents his process on the

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?