Explanation:
Comparison Chart
Basis For Comparison CFL Bulb LED Bulb
Definition The CFL is defined as the lamp which uses the low pressure mercury vapour gas for producing the visible light It is a PN junction diode which produces light when current passes through it in the forward direction.
Stand For Compact Fluorescent Lamp Light Emitting Diode
Working principle The electrons of mercury when excited emits ultraviolet light. This ultraviolet light when strikes with the fluorescent coating glass converts it into the visible light. The semiconductor material which emits light with the passage of current.
Power Consumption More Less
Mercury Contain Not contain
Destruction Difficult Easy
Efficient Less More
Ballast Requires Not requires
Lifespan 10,000 hours 50,000 hours and more.
Turn on Intensity Delay Quick
Expensive Less More
Answer:

Explanation:
<u>Net Force
</u>
The second Newton's law explains how to understand the dynamics of a system where several forces are acting. The forces are vectorial magnitudes which means the x and y coordinates must be treated separately. For each component, the net force must equal the mass by the acceleration, i.e.


The box with mass m=20 kg is pulled by a rope with a
angle above the horizontal. It means that force (called T) has two components:


We'll assume the positive directions are to the right and upwards and that the box is being pulled to the right. There are two forces in the x-axis: The x-component of T (to the right) and the friction force (to the left). So the equilibrium equation for x is

There are three forces acting in the y-axis: The component of T (upwards), the weight (downwards), and the Normal (upwards). Since there is no movement in the y-axis, the net force is zero and:

Rearranging:

Solving for N in the y-axis:

The friction force is given by

Replacing in the equation for the x-axis, we have

Replacing the formula for N in the equation for the x-axis

Operating and rearranging


Solving for T:

Plugging in the given values:


Sorry that this is a bit late but.... it is
( The spring Scale reads 22 Newton’s when a object is fully submerged in water.)
The kitten's velocity is V=0.625 m/s
<u>Explanation:</u>
<u>Solving the problem,</u>
Given
Mass=0.8 kg
Momentum=0.5 kg.m/s
Velocity=?
We have the formula,
P=M*V
V=P/M
V=0.5 kg.m/s/0.8 kg
V=0.625 m/s
The kitten's velocity is V=0.625 m/s
<u />
The train's average speed during that 24.8 seconds is
(1/2) (4.82 m/s + 7.09 m/s)
= (1/2) (11.91 m/s)
= 5.955 m/s .
Traveling at an average speed of 5.955 m/s for 24.8 sec,
it covers
(5.955 m/s) x (24.8 sec) = 147.68 meters .