Which of the following does not accurately describe transistors?
a. both npn and pnp transistors consist of an emitter, base, and collector.
b. both npn and pnp transistors consist of a base composed of an n-type material.
c. both npn and pnp transistors consist of p-type and n-type material.
d. both npn and pnp transistors operate in the same manner but with interchanged terminals and opposite directions of
voltage and current.

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n