Kirchhoff's Rules: A multiloop circuit is shown in the figure, but some quantities are not labeled. Find the current I2 if the batteries are ideal. (It is not necessary to solve the entire circuit.)
A. +0.1 A
B. +0.3 A
C. +0.5 A
D. -0.1 A
E. -0.3 A
Answer: E
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Enceladus orbits Saturn in a resonance with the larger moon Dione. Each time Dione orbits Saturn once, Enceladus orbits _______________
Fill in the blank(s) with correct word
Wave Characteristics: A certain part of the electromagnetic spectrum ranges from 200 nm to 400 nm. What is the highest frequency associated with this portion of the spectrum? (c = 3.00 × 108 m/s)
A. 1.50 × 1014 Hz B. 7.50 × 1013 Hz C. 7.50 × 1014 Hz D. 7.50 × 1015 Hz E. 1.50 × 1015 Hz
It is generally easier to push an object once it is moving than when one is getting it started. Why is this?
Which would have the lower average molecular speed?
(i) a sample of hydrogen gas, H2, at 0°C (ii) a sample of oxygen gas, O2, at 100°C
1.(i) 2.(ii) 3.They have the same average molecular speed. 4.It is impossible to tell.