Which of the following statements is true of chords? select all that apply.
a chord is a line segment.
a chord connects two points on a circle.
a chord can be a radius of a circle.
a chord can be a diameter of a circle.
a chord divides a circle into two regions.

How are calculation for velocity and speed different

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.