Physics, 06.01.2021 14:00, landanwithers
The mass of a cannon ball is 10 kg. If the speed of the cannon ball is 50 m/s in position A and E (just before hitting the ground), Calculate:
Answers: 1
Physics, 21.06.2019 23:30, southerntouch103
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 10:00, Trinhphuongtran
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Physics, 22.06.2019 10:10, xavierfox1721
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. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
Answers: 1
The mass of a cannon ball is 10 kg. If the speed of the cannon ball is 50 m/s in
position A and E (...
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