Physics, 16.09.2019 04:30, Hjackson24
The ratio of brightness of two stars can be determined by a constant of 2.512 raised to the power of the magnitude difference. the formula
b1
b2
= 2.512(m2 โ m1) where b1 and b2 represent the brightness and m1 and m2 refer to the magnitudes of the stars being compared. one star has a magnitude of 0.2, and another star has a magnitude of 2.2. what is the ratio of brightness of these two stars?
Answers: 3
Physics, 22.06.2019 16:50, Walkman2092
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 โ t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
Physics, 22.06.2019 21:00, rina62
On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?
Answers: 3
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