Four resistors are connected across an 8-V DC battery as shown in the figure. The current through the 9-? resistor is closest to
Ans: 0.7 A.
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In a very young star cluster, while the most massive stars are swelling up into giants, the least massive stars are
A) collapsing directly to white dwarfs. B) also evolving off the main sequence as well. C) blowing off shells as planetary nebula instead. D) continuing to shine as stable main-sequence stars. E) still on the zero-age main sequence.
The net force acting on a 12.6-kg object is given by Fx = (8 – x) N, where Fx is in newtons and x is in meters. How much work is done on the object as it moves from x = 0 to x = 6 m?
a. 64 J b. 30 J c. 28 J d. 24 J
A 0.12-kg ball is moving at 6.0 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 8.0 m/s. What is the magnitude of the change in the momentum of the ball?
a. 0.39 kgm/s c. 1.7 kgm/s b. 0.42 kgm/s d. 2.4 kgm/s
Identify erosional features of the shoreline. Identify depositional features of the shoreline
What will be an ideal response?