Which of the following statements is true:
A. If the electric potential is zero at a point, then the electric field is zero at that point also.
B. If the electric field is zero throughout a region of space, then the electric potential is necessarily also zero there
C. If the electric field is zero at a point, then the electric potential is zero at that point also.
D. If the electric potential is zero throughout a region of space, then the electric field is necessarily also zero there
E. The electric field is large where the potential is large, and vice versa.
D. If the electric potential is zero throughout a region of space, then the electric field is necessarily also zero there
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Mass on a Spring: A geologist suspends a 0.30-kg stone on an ideal spring. In equilibrium the stone stretches the spring 2.0 cm downward. The stone is then pulled an additional distance of 1.0 cm down and released from rest.(a) Write down the equation for the vertical position y of the stone as a function of time t, using the cosine function. Take the origin at the equilibrium point of the stone, with the positive y direction upward.(b) How fast is the stone moving at a time equal to 1/3 of its period of motion?
What will be an ideal response?
What type of telescope is the Hubble Space Telescope?
A) refractor B) prime focus C) Newtonian D) Cassegrain E) Nasmyth/Coude
Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C As the ice is melting, the temperature of the ice-water mixture rises by
a. 0°C b. +5°C c. –5°C d. +10°C e. –10°C
Image height divided by object height gives __________
Fill in the blank(s) with correct word