A 35 g steel ball is held by a ceiling-mounted electromagnet 3.5 m above the floor. A compressed-air cannon sits on the floor, 4.0 m to one side of the point directly under the ball. When a button is pressed, the ball drops and, simultaneously, the cannon fires a 25 g plastic ball. The two balls collide 1.0 m above the floor. What was the launch speed of the plastic ball

8.95 m/s

Explanation:

(3.5-1.0) x 2 = gt²

t = √5/9.8 = 0.714 sec  

= X/t = 4/ 0.714 = 5.602 m/s

vertical velocity means it has to rise 1.0 m against gravity in 0.714s

= gt = 9.8 x 0.714 = 6.99 m/s

V = √²+ ² = √6.99²+5.602² = 8.95 m/s

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

hi i’m sorry to call us today so we will get back with y’all and we will have to do it haha omg was the day