A 200-N object floats with three-fourths of its volume beneath the surface of the water. What is the buoyant force exerted by the water on the object? The density of water is 1000 kg/m3
A) 50 N
B) 150 N
C) 200 N
D) 267 N
E) It cannot be determined because we do not know the volume of the object.
C
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What produces a type-I supernova?
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Velocity: A bat, flying toward the east at 2.0 m/s, emits a shriek that is reflected back to it from a wall that is 20.0 m in front of the bat at the instant the shriek is emitted. Sound travels at 340 m/s in the air. How many milliseconds after emitting the shriek does the bat hear the reflected echo from the wall?
Fill in the blank(s) with the appropriate word(s).
Venus is most like Earth in terms of size
a. True b. False Indicate whether the statement is true or false
A system comprised blocks, a light frictionless pulley, and connecting ropes is shown in the figure. The 9.0-kg block is on a perfectly smooth horizontal table
The surfaces of the 12-kg block are rough, with between the block and the table. If the 5.0-kg block accelerates downward when it is released, find its acceleration. A) 1.0 m/s2 B) 1.2 m/s2 C) 1.4 m/s2 D) 1.6 m/s2 E) 1.8 m/s2