A gas is placed in a thermally insulated container as shown below
As the piston is slowly lowered, the applied force F...
1.... increases.
2.... decreases.
3.... stays the same.
4.The change in the temperature cannot be determined.
1
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A window for viewing fish in the local aquarium is square and measures 0.8 m × 0.8 m. Its center is 12. m below the surface. What is the total force on the window?
What will be an ideal response?
A stick is moving along the x-axis at 90%c. A person riding with the stick sees it inclined at 45.° with respect to the x-axis. Observers in the rest frame see the stick making what angle with respect to the x-axis?
A) 79.° B) 66.° C) 53.° D) 45.° E) 88.°
A split highway has a number of lanes for traffic. For traffic going in one direction, the radius for the inside of the curve is half the radius for the outside. One car, car A, travels on the inside while another car of equal mass, car B, travels at equal speed on the outside of the curve. Which statement about resultant forces on the cars is correct?
A. The force on A is half the force on B. B. The force on B is half the force on A. C. The force on A is four times the force on B. D. The force on B is four times the force on A. E. There is no net resultant force on either as long as they stay on the road while turning.
A(n) ______________ quantity has only magnitude
Fill in the blank(s) with correct word