A charge of 20 nC is distributed uniformly along the x axis from x = ?2.0 m to x = +2.0 m. What is the electric potential (relative to zero at infinity) at the point x = 5.0 m on the x axis?
a. 57 V
b. 48 V
c. 38 V
d. 67 V
e. 100 V
c
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Name the following compounds
a. NO2 b. N2O3 c. Zn(NO3)2 d. ICl5
How do most of the heavier elements up to iron form in the universe?
A. by nucleosynthesis in the cores of massive stars B. in supernova explosions C. in the cores of protostars D. in the original interstellar clouds
A majorette takes two batons and fastens them together in the middle at right angles to make an "x" shape. Each baton was 0.70 m long and each ball on the end is 0.10 kg. (Ignore the mass of the rods.) What is the moment of inertia if the arrangement is spun around an axis through the center perpendicular to both rods?
a. 7.0E–3 kg·m2 b. 2.5E–2 kg·m2 c. 1.2E–2 kg·m2 d. 4.9E–2 kg·m2 e. 7.0E–2 kg·m2
What is the charge on 1.0 kg of protons? (e = 1.60 × 10-19 C, mproton = 1.67 × 10-27 kg)
A) 1.0 C B) 1000 C C) 9.6 × 107 C D) 6.0 × 1026 C E) 6.0 × 1023 C