Lighting McQueen has a velocity of 15.0 m/s. He stops after having an acceleration of -5.0 m/s2. How long did it take for him to stop?

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?

Which of the following statement is false

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?