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Which points on the wave diagram below are 90º out of phase with each other?
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
An object weighing 2.0 newtons is pushed across a horizontal, frictionless surface by a horizontal force of 4.0 newtons. The magnitude of the net force acting on the object is
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
The energy equivalent of the rest mass of an electron is
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
What is the magnitude of the electrostatic force exerted on an electron by another electron when they are 0.10 meter apart?
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
A spring has an unstretched length of 0.40 meter. The spring is stretched to a length of 0.60 meter when a 10.-newton weight is hung motionless from one end. The spring constant of this spring is
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
After a 65-newton weight has fallen freely from rest a vertical distance of 5.3 meters, the kinetic energy of the weight is
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
When the switch is open, there is an electric current in
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
The height of an individual step on a staircase is closest to
340 J
lamp I, only
50 N/m
2.0 × 10^−1 m
8.20 × 10^−14 J
D and E
4.0 N
2.3 × 10^−26 N
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