Physics, 12.02.2020 05:29 vavzincakjoey
A constant current of 2A for 30 hours is required to charge a marine battery having a voltage at its terminals of v(t) = 12(1 + e −t/30) V, where t is in hours. Assuming an electricity cost $0.20 per KWh, what is the cost to charge the battery?
Answers: 1
Physics, 22.06.2019 13:20
This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?
Answers: 3
Physics, 23.06.2019 00:30
Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?
Answers: 2
Physics, 23.06.2019 01:00
The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?
Answers: 3
A constant current of 2A for 30 hours is required to charge a marine battery having a voltage at its...
Mathematics, 28.01.2020 06:31