A proton (m = 1.7 × 10^?27 kg, q = +1.6 × 10^?19 C) starts from rest at point A and has a speed of 40 km/s at point B. Only electric forces act on it during this motion. Determine the electric potential difference VB ? VA
a. +8.5 V
b. ?8.5 V
c. ?4.8 V
d. +4.8 V
e. ?17 V
b
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Fill in the blank(s) with correct word
Which of the following is not a general characteristic of the four jovian planets in our solar system?
A) They lack solid surfaces. B) They are composed mainly of hydrogen, helium, and hydrogen compounds. C) They are higher in average density than are the terrestrial planets. D) They are much more massive then any of the terrestrial planets.
Spheres are an essential part of Kepler's three fundamental rules of planetary motion
a. True b. False Indicate whether the statement is true or false
How large a pressure increase (in atm) must be applied to water if it is to be compressed in volume by 1.0%? The bulk modulus of water is 2.0 × 109 N/m2 and 1 atm = 1.0 × 105 N/m2
a. 50 atm b. 100 atm c. 1 100 atm d. 400 atm e. 200 atm