Answer:
The time taken by the brick to hit the ground, t = 0.84 s
Explanation:
Given that,
A brick falls from a height, h = 3.42 m
The initial velocity of the brick is zero.
Since the brick is under free-falling. The time equation of a free-falling body when the displacement is given is
t = 
where,
h - height from surface in meters
g - acceleration due to gravity
on substituting the values in the above equation,
t = 
= 0.84 s
Hence, time taken by the brick to hit the ground is t = 0.84 s
+2 electron charges = 2x1.6x10^-19Coulombs
The static frictional force is greater than the kinetic frictional force, so the static frictional force is greater than 1200 N.
The answer is : D
Reasoning:
Homeostasis is the body’s balance
Answer:
C- Choosing variables and controls
Explanation:
Correct on edge.