If two heaters are connected in parallel across the 120 volt source, the current in amperes drawn from the source is
a. 5 c. 20
b. 10 d. none of the above
C
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In an attempt to avoid “the bends” which occurs if a diver rises too quickly after having been at great depth in the ocean for a long period of time, a diver should come to the surface relatively slowly. What would the rate of change (in Pa/s) of the water pressure be on a diver in the ocean as he rose at 15 m/min? The density of seawater is 1017 
A. 15 kPa/s B. 2.5 kPa/s C. 250 Pa/s D. 150 kPa/s
What is the kinetic energy of a 0.135 kg baseball thrown at 40.0 m/s?
a. 54.0 J b. 87.0 J c. 108 J d. 216 J
A projectile is projected from the origin with a velocity of 10.0 m/s at an angle of 30.0 degrees above the horizontal. What is the velocity of the projectile 2.00 seconds later?
A. Vx = 8.7 m/s, Vy = -14.6 m/s B. Vx = 14.6 m/s, Vy = -5.6 m/s C. Vx = -8.7 m/s, Vy = -14.6 m/s D. Vx = -14.6 m/s, Vy = 8.7 m/s E. Vx = 5.6 m/s, Vy = -14.6 m/s
Describe the Ptolemaic model of the universe. Draw a diagram of the model showing the major components of the model for Earth, the Moon, the Sun, and the five planets visible to the Greeks
What will be an ideal response?