The coefficient of friction is 0.5.
<h3>What is Coefficient of friction?</h3>
The ratio of friction force to normal force is known as the coefficient of friction (COF), which has no dimensions. Those materials are said to as lubricous if their COF is less than 0.1. Surface roughness and COF are dependent on the composition of the materials.
Initial velocity, u=30m/s
time taken = 6s
Final velocity, v=0
Acceleration of friction, a=μg=10μms⁻²
Apply first kinematic equation of motion,
v - u = at
0 - 30 = (-10μms⁻²) × 6
-30 = -60μ
μ = 1/2
μ = 0..5
Hence, coefficient of friction is 0.5
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Answer:
energy is transformed when your rubbing your hands together because of the mechanical energy of your hands moving together creates both sound energy and heat energy from the friction and chemical energy is created when the atoms and molecules in your hands interact
Explanation:
To solve this problem it is necessary to apply the concepts related to Period in a spring, elastic potential energy and energy in simple harmonic movement.
From the definition we know that the period can be expressed as
Where
m= Mass
k = Spring constant
Our values are given as
m = 16.6Kg
K = 2470N/m
Therefore the period would be
PART A) The frequency is the inverse of the period therefore
PART B) Elastic potential energy depends on compression and elasticity therefore
PART C) Kinetic energy depends on mass and speed therefore
PART D) As energy is conserved, the total energy is equivalent to the dual ratio of the elasticity constant and the amplitude, mathematically,
Therefore the motion's amplitude is 1.07m
A confined aquifer is a permeable rock unit found deep underground. It is usually overlain by another relatively impermeable rock or clay. This rock or clay layer limits the movement of the underground water whether into or out of the aquifer.
Since water is a liquid, therefore, is is always seeking a way out to leak.
Based on this, when a confined aquifer intersects with a fracture or a well, the water inside the aquifer will tend to move laterally until it can find a spot to leak from.
Therefore, the answer is "<span>It will move laterally until it finds a way out"</span>
Because incandescent light bulbs emit much, much more heat energy than light energy. So, they convert more of the electric energy put into them into heat energy than light energy.
P.S. Learn this stuff yourself. Don't cheat