A horizontal, uniform board of weight 100 N and length 4 m is supported by vertical chains at each end. A person weighing 500 N is sitting on the board. The tension in the right chain is 175 N. How far from the right chain is the person sitting?
A. 3 m
B. 0.5 m
C. 1 m
D. 2 m

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Energy flows from the producer level to the level. is called