An object completely submerged in water must either rise or fall
Indicate whether the statement is true or false
FALSE
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Two parallel disks shown in the figure have emissivity of 0.6. If one of the disks is at 200ºC and the other one is at 30ºC, (a) determine the net heat transfer between the two disks if the surroundings re-radiate heat and (b) determine the net heat transfer between the two disks if the surroundings are a black body at 20ºC.
Nuclear ________ explains the Sun's immense and sustained energy output
Fill in the blank(s) with correct word
A 1.6-kg block is attached to the end of a 2.0-m string to form a pendulum. The pendulum is released from rest when the string is horizontal. At the lowest point of its swing when it is moving horizontally, the block is hit by a 10-g bullet moving horizontally in the opposite direction. The bullet remains in the block and causes the block to come to rest at the low point of its swing. What was
the magnitude of the bullet's velocity just before hitting the block? a. 1.0 km/s b. 1.6 km/s c. 1.2 km/s d. 1.4 km/s e. 1.8 km/s
The heavy bombardment of the early Solar System made _______________ on the Terrestrial planets
Fill in the blank(s) with correct word