Physics, 19.12.2019 00:31 grantjaylynn
Acopper block is removed from a 310c oven and dropped into 1.10kg of water at 23.0c. the water quickly reaches 33.0c and then remains at that temperature.
what is the mass of the copper block? the specific heats of copper and water are 385 j/(kg? k) and 4190 j/(kg? k) respectively. express your answer to three significant figures and include the appropriate units.
Answers: 3
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 1
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
Answers: 3
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d
Answers: 2
Acopper block is removed from a 310c oven and dropped into 1.10kg of water at 23.0c. the water quick...
Mathematics, 24.08.2021 02:40
Computers and Technology, 24.08.2021 02:40
Mathematics, 24.08.2021 02:40
Mathematics, 24.08.2021 02:40
Mathematics, 24.08.2021 02:40
Arts, 24.08.2021 02:40
Mathematics, 24.08.2021 02:40
Mathematics, 24.08.2021 02:40
Mathematics, 24.08.2021 02:40