Aunt matilda goes to a well and throws a penny straight down the well at 3.0 m/s. she hears a splash after 0.5 seconds. how deep is the well? a) 0.31 m b ) 0.91 m c) 1.54 m d) 2.73 m e) 5.30 m

Answer : The correct option is (d) 2.73 m

Explanation :

By the 2nd equation of motion,

where,

s = distance or height = ?

u = initial velocity  = 3.0 m/s

t = time = 0.5 s

a = acceleration due to gravity =

Now put all the given values in the above equation, we get:

Therefore, the correct option is (d) 2.73 m

gas and liquid

d. platinum would have the greatest temperature increase because it has the lowest specific heat.