1 What kind of energy transformation takes place in the following
didactices
1 Hydro-electric...
Physics, 20.03.2021 19:30, aprilayleen
1 What kind of energy transformation takes place in the following
didactices
1 Hydro-electric power station-f =>Electrical energy
Le bullet fired from a gun => kinetic energy
A battery => Electrical energy
A arrow ona bows
y Electric bulb. =>
Viewound Spring of a Poy car) Potential energy
vi Feater-
vai ser in spring
19. A green plant
a stone at the top of hill
human bodyâ
Answers: 2
Physics, 21.06.2019 23:30, kaytonleeb
The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s
Answers: 2
Physics, 22.06.2019 12:20, drewefielder6198
Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
Physics, 22.06.2019 12:30, lmolder1329
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (Ï = 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
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