A proton moves through a magnetic field of magnitude 1.40 T with speed 5.00 ´ 106 m/s. What is the magnitude of the maximum acceleration of the proton? The mass of a proton is 1.67 ´ 10–27 kg, and its charge is 1.6 ´ 10–19 C.

The Gateway Arch in St. Louis, Missouri, is a

A) parabola. B) hyberbola. C) catenary.

Fewer than 100 stars lie within 5 parsecs of the Sun

Indicate whether the statement is true or false

Estimate the rotational energy (in eV) for a diatomic hydrogen molecule in the l = 2 quantum state

(The equilibrium separation for the H2 molecule is 0.074 nm.) (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s, h = 1.055 × 10-34 J ? s, mH ? mproton = 1.67 × 10-27 kg) A) 0.026 eV B) 0.046 eV C) 0.055 eV D) 0.032 eV E) 0.011 eV

The crystals in matter are held together by

A) cohesive forces. B) amorphous forces. C) electrical bonding forces. D) excess neutrons.