Luke Skywalker is battling the Evil Sith Lord. He throws a chair (using the force) with a mass of 2 kg moving at a rate of 50 m/s/s. What is the force at which the chair hit the Evil Sith Lord?

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

What is the empirical formula for c4h8o2