An incandescent bulb emits what kind of spectrum?
A. emission-line
B. blueshifted
C. continuous
D. absorption-line
E. redshifted
Answer: C
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Multiple-Object Accelerating Systems: A 5.0-kg block and a 4.0-kg block are connected by a 0.6 kg rod, as shown in the figure. The links between the blocks and the rod are denoted by A and B. A vertical upward force of magnitude F of magnitude 150 N is applied to the upper block. What magnitude force does each of the links A and B exert?
What will be an ideal response?
Parallel-Plate Capacitor: An ideal air-filled parallel-plate capacitor consists of plates that are 1.0 mm apart and have an area of 1.5 × 10-4 m2. The capacitor is connected to a 12-V potential source (battery). (?0 = 8.85 × 10-12 C2/N ? m2)(a) What is the capacitance of this capacitor?(b) How much charge is on each of its plates?(c) What is the strength of the electric field between the plates?
What will be an ideal response?
Which of the following measurements of other solar systems would require us to change our current solar system formation theory?
A) The age of another solar system is significantly older than our solar system. B) The planets in other solar systems mostly orbit their central stars in the same plane and same direction as the other planets in that solar system. C) Some stars have no planets. D) Some stars have many planets. E) Many other stars have planets orbiting in many different directions and at many different angles.
Two athletes jump straight up. John has twice the initial speed of Harry. Compared to Harry, John jumps
A) 0.50 times as long. B) 1.41 times as long. C) twice as long. D) three times as long. E) four times as long.