The gravitational force between two objects is proportional to
A) the distance between the two objects.
B) the square of the distance between the two objects.
C) the product of the masses of the two objects.
D) the square of the product of the masses of the two objects.
E) none of the above
C
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The peak of the radiation curve of a blackbody moves toward larger wavelength as its temperature __________
Fill in the blank(s) with correct word
Besides direct formation of a black hole in a hypernova, some think that mergers between neutron stars can create even longer-lived gamma ray bursts as well
Indicate whether the statement is true or false
A proton moving along the x axis has an initial velocity of 4.0 × 10^6 m/s and a constant acceleration of 6.0 × 10^12 m/s2 . What is the velocity of the proton after it has traveled a distance of 80 cm?
a. 5.1 × 10^6 m/s b. 6.3 × 10^6 m/s c. 4.8 × 10^6 m/s d. 3.9 × 10^6 m/s e. 2.9 × 10^6 m/s
An 880-MW electric power plant has an efficiency of 20.0%. It loses its waste heat in large cooling towers. Approximately how much waste heat (in MJ) is discharged to the atmosphere per second?
a. 5 280 MJ b. 3 520 MJ c. 880 MJ d. 4 400 MJ e. 7 040 MJ