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Answers: 3
Physics, 22.06.2019 12:00
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Physics, 22.06.2019 21:10
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2
Answers: 2
Physics, 23.06.2019 04:31
Describe the three ray tracing steps used to identify an image for the given situation.
Answers: 1
Physics, 23.06.2019 05:30
Herman is walking his pet fish, leo , back and forth along the canal. suppose the canal is 30 meters long and he goes up and back 25 times. a) what distance has herman walked?
Answers: 3
Mathematics, 15.04.2021 19:50
Social Studies, 15.04.2021 19:50
Mathematics, 15.04.2021 19:50
Biology, 15.04.2021 19:50
Mathematics, 15.04.2021 19:50
Physics, 15.04.2021 19:50
Mathematics, 15.04.2021 19:50
Mathematics, 15.04.2021 19:50
Mathematics, 15.04.2021 19:50
Social Studies, 15.04.2021 19:50
Mathematics, 15.04.2021 19:50