During a tornado in 2008 the peachtree plaza westin hotel in downtown atlanta suffered damage. suppose a piece of glass dropped near the top of the hotel falls 215 meters. how long would it take the piece of glass to hit the ground?

Time = t = 6.62 s

Explanation:

Given data:

Height = h = 215 m

Initial velocity = = 0 m/s

gravitational acceleration = g = 9.8 m/s²

Time = t = ?

According to second equation of motion

As initial velocity is zero, So the first term of right hand side of above equation equal to zero.

                                        t² =

                                         t =

                                         t =

                                         t = 6.62 s

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge