A truck traveling at 60 km / h comes to a complete stop due to a traffic signal. Does this change in velocity violate the law of conservation of energy? Explain

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

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