I truly don't understand physics.. Spiderman swings from a single strand of web. Sketch a force diagram for Spiderman.

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

At what time will the interfering waves have an amplitudeof zero?

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.