Physics, 29.06.2019 23:30 sabinaschaaf10
Formula sheet question 12 a 5 kg block starting from rest slides down a 5 m long, 3 m high straight ramp. if its speed upon reaching the bottom of the ramp is 4 m/s, how much mechanical energy was lost due to friction as it slid? o a. 210j b. 150 c. 110 j o d. 40j
Answers: 2
Physics, 21.06.2019 16:10
Avoltage source vs = 10 v is in series with a resistor of 10 kohm. if the source transformation theorem is applied, what will the value of the current source be in ma ?
Answers: 1
Physics, 22.06.2019 15:30
1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?
Answers: 1
Physics, 22.06.2019 21:20
People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)
Answers: 3
Formula sheet question 12 a 5 kg block starting from rest slides down a 5 m long, 3 m high straight...
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