Physics, 10.03.2021 03:40 gonjul5045
A ball of 5 kg is moving towards the wall at 6 m/s. After a while,
it hits the wall and rebounds back at 4 m/s in the opposite
direction. What is the work done on it?
Answers: 2
Physics, 21.06.2019 17:00
Asimply means that over time there was some sort of change.
Answers: 1
Physics, 22.06.2019 11:20
Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
Answers: 3
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Physics, 22.06.2019 17:10
What causes the development of most clouds and precipitation in the atmosphere?
Answers: 1
A ball of 5 kg is moving towards the wall at 6 m/s. After a while,
it hits the wall and rebounds ba...
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