1.05 x 105 J
Physics, 03.12.2021 23:10, saneayahsimmons
50 kg of water at 75o C is cooled to 25o C. How much heat was given off?
a
1.05 x 105 J
b
-1.05 x 107 J
c
1.67 x 105 J
d
-1.67 x 107 J
Answers: 2
Physics, 21.06.2019 18:00, heyhay5748
Abaseball has a mass of 0.145 kg and approaches a bat at 40.0 m/s. after it is hit, the ball leaves the bat at 50.0 m/s directly back. find the impulse of the bat on the ball. 7.25 kg*m/s 13.1 kg*m/s 5.80 kg*m/s 1.45 kg*m/s
Answers: 2
Physics, 22.06.2019 19:30, cakey3501
The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?
Answers: 1
Physics, 22.06.2019 20:00, scott5315
Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature
Answers: 1
Physics, 23.06.2019 02:30, hewonabi123
Aproton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?
Answers: 2
50 kg of water at 75o C is cooled to 25o C. How much heat was given off?
a
1.05 x 105 J
1.05 x 105 J
Health, 19.07.2019 18:30
English, 19.07.2019 18:30
Business, 19.07.2019 18:30
Mathematics, 19.07.2019 18:30
Computers and Technology, 19.07.2019 18:30