Three point charges are located at the corners of an equilateral triangle with a side of 0.5m, as shown below a) calculate the net electric force on the 7.0hc charge. b) how would the answer change if both the lower charges have their signs flipped (but are unchanged in magnitude)?

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank