All heavy elements are made during supernova explosions
Indicate whether the statement is true or false
FALSE
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What will be an ideal response?
A box is pushed across a rough horizontal floor by a force acting parallel to the floor in the direction of motion. A force doing no work during the motion is
A. gravity. B. friction. C. the applied force. D. All of the forces are doing work
Two ideal parallel-plate capacitors are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capacitance
A) C/2. B) 4C. C) 2C. D) C.
When a 60-W lightbulb is operating on a 120-V household line, what current does it draw?
A) 0.5 A B) 120 J/C C) 2.0 A D) 1.414 A E) 40 J/C