A block of Styrofoam floats on water while a same-size lead block lies submerged in the water. The buoyant force is greatest on the
A) lead.
B) Styrofoam.
C) same for both
Answer: A
Physics & Space Science
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Polystyrene has a _________strain to fracture at room temperature relative to that of most other thermoplastic polymers.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
For the astronauts inside an orbiting space vehicle the force of gravity that acts on them is
A) zero. B) mainly due to Earth below. C) mainly due to the mass of the space vehicle. D) mainly due to nearby planets and stars. E) none of the above
Physics & Space Science
It is not possible to increase the efficiency of thermal power plants because of thermodynamics
What will be an ideal response?
Physics & Space Science
The angular resolution of an 8 inch diameter telescope is ________ times greater than that of a 2 inch diameter telescope
A) 8 B) 2 C) 16 D) 4 E) 9
Physics & Space Science