Which of the systems listed below is the largest, having NA = NB and U = 6NA? for which there is a better than 1 in a billion chance of seeing one or the other solid having zero energy?
A. NA = 6
B. NA = 8
C. NA = 10
D. NA = 12
E. NA = 15
B. NA = 8
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All the planets, asteroids, comets, and most of the moons in the Solar System formed at about the same time.
Answer the following statement true (T) or false (F)
Why do we have two high tides per day?
A. About half of Earth's water must flow past more geological barriers, slowing it down. B. The Moon and the Sun create separate tidal bulges, resulting in two high tides per day. C. There are two tidal bulges, and the rotation of Earth carries us through both of them every day. D. The rotation of Earth and the motion of the Moon around Earth drag both tidal bulges over us.
The first to be credited with the idea that light is quantized was
A) Max Planck. B) Albert Einstein. C) both Planck and Einstein at about the same time.
A proton initially moves left to right long the x axis at a speed of 2.00 × 10^4 m/s. It moves into an electric field, which points in the negative x direction, and travels a distance of 0.200 m before coming to rest. What acceleration magnitude does the proton experience?
a. 2.67 × 10^12 m/s2 c. 6.67 × 10^6 m/s2 b. 9.33 × 10^9 m/s2 d. 1.00 × 10^9 m/s2