In the figure, if Q= 30micro C, q= 5micro C, and d= 30cm, what is the magnitude of the electrostatic force on q

Gunpowder residue is most likely to show up where on a shooters hands

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

If y gets smaller as x gets bigger and y have an relationship?