A. two point charges totaling 7.50 µc exert a repulsive force of 0.100 n on one another when separated by 0.911 m. what is the charge (in µc) on each? smallest charge: largest charge: b. what is the charge (in µc) on each if the force is attractive? smallest largest

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656(red) and 486 (blue). light from a hydrogen lamp illuminates a diffraction grating with 500 lines per mm, and the light is observed on a screen 1.50 behind the grating. what is the distance between the first-order red and blue fringes?

There are multiple tuning forks present in the room, and annie strikes one with a natural frequency of 400 hz. which of these other tuning forks will begin to vibrate through resonance and make the sound louder? a 200 hz tuning fork a 400 hz tuning fork a 800 hz tuning fork a 1600 hz tuning fork