This doesn’t make any sense
Answer:
1.37 seconds before.... splat !
Explanation:
y = y0 + v0 t + 1/2 a t^2 y0 = 30 y = 0
v0 = 0 ( from rest)
a = - 32.2 ft/s^2
0 = 30 - 1/2 * 32.2 * t^2
t=1.366 seconds <u> Note that mass is irrelevant.</u>
#1
As per work energy theorem work done by all forces must be equal to change in its kinetic energy
so correct answer will be
= change in kinetic energy
#2
Torque is defined as


so here torque will be maximum when applied force is perpendicular to the rod
so first figure of rod is correct for maximum torque
#3
When car makes turn then its passengers moves outwards which is due to the property of inertia because due to this property passengers has tendency to move in same direction and hence it feels to move outwards
So correct answer will be
<em>inertia</em>
#4
As per energy conservation we can say
initial potential energy = final kinetic energy




Answer:

Explanation:
From the question we are told that:
Wavelength
m
Refraction Index 
Generally the equation for Destructive interference for Normal incidence is mathematically given by

Since Minimum Thickness occurs at
At 
Therefore



Answer:
Every magnesium (Mg) atom has atomic number of 12.
Explanation:
Magnesium (Mg) is a chemical element of great importance for plants, animals, and humans.
Alkaline earth metal, magnesium is obtained by electrolysis of magnesium chloride solution.
Magnesium burns with a shining flame. Magnesium is a good reducing agent. This property is used to obtain some other metals.