What is the formula for kepler’s 3rd law of planetary motion? a. t3 = r2 b. t3 /1 = r2 c. t2 = r3 d. t3= r2/1

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Why don't you see your reflection in water with waves or repples