If a photon has a frequency of 1.15 × 1015 hertz, what is the energy of the photon?
Given: Planck's constant is 6.63 × 10-34 joule·seconds.

A.
5.82 × 10-49 joules
B.
7.62 × 10-19 joules
C.
8.77 × 10-12 joules
D.
1.09 × 10-12 joules

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If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction