subject
Physics, 30.07.2021 02:00 marciii

Star A's surface temperature is 5000K and its radius is the same as the Sun's. Star B's surface temperature is 15000K and its radius is 4 times that of the Sun's. Star Bradiates heat how many times Star B radiates in one second? Assume e- 1 for both stars. A. 12
B. 24
C. 48
D. 96
E. 324
F. 648
G.1296
H. 81
l. 162
j. 3

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 00:10, smit715674
I'm kinda lost ! 1. when marilyn takes her pet dog for a walk, the dog walks at a veryconsistent pace of 0.55 m/s. draw a position-time graph to representmarilyn's dog walking the 19.8 m distance from the front of her house tothe nearest fire hydrant.2. both car a and car bleave school when a stopwatch reads zero. car atravels at a constant 75 km/h, and car b travels at a constant 85 km/h. a) draw a position-time graph showing the motion of both cars. howfar are the two cars from school when the stopwatch reads 2 hrs? calculate the distances and show them on your graph. b) both cars passed a gas station 120 km from the school. when dideach car pass the gas station? calculate the times and show themon your graph.3. the figure below shows the position-time graph showing a shopper'smovement up and down the aisle at a store. a) write a story describing the shopper's movements at the store. b) when does the shopper have a position of 6 m? c) how much time passes between when the shopper enters the aisleand when he gets to a position of 12 m? what is the shopper's averagevelocity between 37 s and 46 s?
Answers: 3
image
Physics, 22.06.2019 02:00, honeybaby675610
Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.
Answers: 1
image
Physics, 22.06.2019 04:00, dlatricewilcoxp0tsdw
Drag each item into the proper state of matter category.
Answers: 1
image
Physics, 22.06.2019 04:30, AShevel6767
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 3
You know the right answer?
Star A's surface temperature is 5000K and its radius is the same as the Sun's. Star B's surface temp...

Questions in other subjects:

Konu
Mathematics, 19.06.2020 23:57
Konu
Chemistry, 19.06.2020 23:57