Physics, 08.10.2021 19:00 singfreshjazz3370
5. Two otherwise identical objects have temperatures of T1 = 480 K and T2 = 3000 K,
respectively.
(a) Which one radiates more energy?
(b) By what factor does its emission exceed the emission of the other?
Answers: 1
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Physics, 22.06.2019 03:30
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
Answers: 1
Physics, 22.06.2019 06:30
Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
5. Two otherwise identical objects have temperatures of T1 = 480 K and T2 = 3000 K,
respectively.<...
Mathematics, 07.05.2021 07:10
Biology, 07.05.2021 07:10
Social Studies, 07.05.2021 07:10
Mathematics, 07.05.2021 07:10
Mathematics, 07.05.2021 07:10
Biology, 07.05.2021 07:10
Mathematics, 07.05.2021 07:10
English, 07.05.2021 07:10
Mathematics, 07.05.2021 07:10
History, 07.05.2021 07:10
Mathematics, 07.05.2021 07:10
Mathematics, 07.05.2021 07:10