Astudent holds a tuning fork oscillating at 269 hz. he walks toward a wall at a constant speed of 0.9 m/s. what beat frequency does he observe between the tuning fork and

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

In an experiment, how can i change human errors? be specific.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot