The visual wavelength image shown above is an object that is found in and near star-forming regions
a. True
b. False
A
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Globular cluster stars are ________ in heavy elements than those in open clusters
Fill in the blank(s) with correct word
Potential: If it takes 50 J of energy to move 10 C of charge from point A to point B, what is the magnitude of the potential difference between points A and B?
A. 500 V B. 50 V C. 5.0 V D. 0.50 V
A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average speed?
A) 2.5 m/s B) 5.0 m/s C) 10 m/s D) 0 m/s E) 1.3 m/s
On a position-time graph for a particle, suppose the plot starts at some positive position and as the time goes on the curve gets steeper and steeper while curving upwards. Which of the following must be true?
a. The speed of the particle is constant. c. The speed of the particle is decreasing. b. The acceleration of the particle is constant. d. The acceleration of the particle is positive.