Physics problem : the balloon is rising at a velocity of 11 m/s and is riding an easterly wind of 4.3m/s ,2000 meters from the balloon; the missile is launched at a velocity of 15 m/s. determine how long after the balloon leaves the ground that the rocket has to be fired in order to take out the balloon solve vector problem

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

If a balloon is taken outside on a very cold day, what will occur?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final