Answers: 1
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 03:30
Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.
Answers: 3
Physics, 22.06.2019 16:50
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 โ t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
A 45 kg boy sits on a horse on a carousel 5.0 m from the center of the circle. he makes a revolution...
Mathematics, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00
Biology, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00
Mathematics, 11.12.2021 01:00