How many steradians are in a sphere?
What will be an ideal response?
There are 4? steradians in a sphere or spherical surface.
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The escape velocity at a given distance from a planet is less than the circular velocity of an orbit around that planet at the same distance
a. True b. False Indicate whether the statement is true or false
Two point charges are separated by 12.0 cm and have charges of +5.0 µC and ?5.0 µC, respectively. What is the electric field at a point midway between the two charges? (ke = 8.99 × 10^9 N·m2/C2)
a. 3.7 × 10^6 N/C b. 2.5 × 10^7 N/C c. 3.1 × 10^6 N/C d. 2.1 × 10^8 N/C e. zero
The exit velocity is 12 m/s. The inlet velocity of the water is nearest:
(A) 6.31 m/s
(B) 4.32 m/s
(C) 3.95 m/s
(D) 3.24 m/s
Electric potential energy is measured in
1) amperes. 2) volts. 3) joules. 4) watts and electric potential is measure in 5) amperes. 6) volts. 7) joules. 8) watts