A person who weighs 550 N empties her lungs as much as possible and is then completely immersed in water (of density 1000 kg/m3 ) while suspended from a harness. Her apparent weight is now 21.2 N. What is her density?
A) 1040 kg/m3
B) 1030 kg/m3
C) 1050 kg/m3
D) 56.1 kg/m3
E) 960 kg/m3
A
You might also like to view...
If a light bulb has half the resistance of a 110-W light bulb, what would be its wattage? Assume both bulbs are attached to the same 160-V circuit
a. 220 W b. 55 W c. 1.5 W d. 330 W e. More information is needed.
Stars originate as large bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. The angular velocity of a star increases as it shrinks because of
a. conservation of angular momentum b. conservation of linear momentum c. conservation of energy d. the law of universal gravitation e. conservation of mass
How does an H-R diagram make it clear that giant stars are larger than main-sequence stars of the same temperature?
What will be an ideal response?
Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 m/s and just after is 3.5 m/s. If the ball is in contact with the floor for 0.050 s, what is the magnitude of the average force applied by the floor on the ball?
a. 60 N c. 30 N b. 133 N d. 3.5 N