Physics, 11.02.2020 01:57 billycain9647
Glasses, cameras, flashlights, binoculars, telescopes and peepholes are all made using __ lenses.
A) concave
B) convex
C) compound
D) converging
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 17:30
Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.
Answers: 1
Physics, 22.06.2019 19:00
According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?
Answers: 3
Glasses, cameras, flashlights, binoculars, telescopes and peepholes are all made using __ lenses.
Mathematics, 18.10.2020 08:01
History, 18.10.2020 08:01
Mathematics, 18.10.2020 08:01
Computers and Technology, 18.10.2020 08:01
Mathematics, 18.10.2020 08:01
Mathematics, 18.10.2020 08:01
Computers and Technology, 18.10.2020 08:01
Mathematics, 18.10.2020 08:01