Which statements are true about moving the compass around the wire? check all that apply. with no current, the compass needle will not move. if the light bulb is on, the compass needle will move. if the circuit is on, compass needle movement will indicate a dead battery. if current is flowing, the compass needle will not move unless the compass is touching the wire. changing the battery terminals will change the current flow and the compass will point differently.

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?

It is advised not to hold the thermometer by the bulb while reading it