Physics, 30.01.2021 16:40 Jennifer2019
An object kept in front of lens, which is thick at the edges, produces a ,
and erect image. (1)
a) Virtual, diminished
b) Virtual, same size
c) Virtual, magnified
d) Real, diminishe
Answers: 1
Physics, 21.06.2019 13:50
Ahot-air balloon is drifting straight downward with a constant speed of 2.40 m/s. when the balloon is 7.63 m above the ground, the balloonist decides to drop one of the ballast sandbags to the ground below. how much time elapses before the sandbag hits the ground?
Answers: 1
Physics, 21.06.2019 23:10
A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m
Answers: 1
Physics, 22.06.2019 09:00
Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
Answers: 1
An object kept in front of lens, which is thick at the edges, produces a ,
and erect image. (1)<...
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