In an RLC series circuit, if the AC frequency is decreased to a very small value, what value does the phase angle between the current and voltage approach?

a. 90°
b. 0°
c. –90°
d. 45°


c

Physics & Space Science

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A particle with charge Q is on the y axis a distance a from the origin and a particle with charge q is on the x axis a distance d from the origin. The value of d for which the x component of the force on the second particle is the greatest is:

A) 0 B) a C) sqrt(2a) D) a/2 E) a/sqrt(2)

Physics & Space Science

What is meant by gauge pressure?

What will be an ideal response?

Physics & Space Science

A 500-kg elevator is pulled upward by a cable that exerts a constant force of 5500 N on the elevator for a distance of 50.0 m. The elevator is the system

(a) What is the work done by the 5500-N force? (b) What is the work done by the gravitational force? (c) What is the net work done on the elevator?

Physics & Space Science

The figure shows a distance versus time graph for an object


The velocity of the moving object is

a.
zero.

b.
constant.

c.
increasing.

d.
decreasing.

e.
not determinable.

Physics & Space Science