What did Einstein show to be equivalent to energy?
A: Light
B: Mass
C: Protons
D: Temperature
E: Velocity
Ans: B: Mass
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Radiative energy is
A) energy carried by light. B) heat energy. C) energy from nuclear power plants. D) energy of motion.
At the Fermilab accelerator in Weston, Illinois, singly-charged ions with momentum 3.2 × 10^-16 kg×m/s are held in a circular orbit of radius 1 km by an upward magnetic field. What B-field must be used to maintain the ions in this orbit? (qion = 1.6 × 10^-19 C)
a. 4 T c. 1 T b. 2 T d. 3 T
pH of an Alkaline Soil
What will be an ideal response?
We now know that Newtonian physics is not valid [i.e., not correct] for
A) gases. B) very fast-moving objects. C) solid objects. D) stationary objects. E) Nonsense--Newtonian physics has never been found to be incorrect.