Physics, 10.10.2019 04:30 lucygperez7946
The diagram below shows light striking a pane of glass. some of the light is reflected and some of the lightest transmitted. the letters represent six different angles. according to the law of reflection which two angles must be equal?
a. e and c
b. f and a
c. b and c
d. a and d
Answers: 3
Physics, 22.06.2019 00:30
In positive numbers less than 1, the zeros between the decimal point and non zero are significant
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Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 17:00
Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?
Answers: 2
The diagram below shows light striking a pane of glass. some of the light is reflected and some of t...
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