Both cars are canceling out the energy of each other. The energy that is left over because one car has a bigger kinetic energy is the energy that is going to move BOTH the cars.
First Car : <em>0.5 * 2000kg * 3m/s^2 = 10.24 KJ</em>
Second Car :<em> 0.5 * 2000kg * 2m/s^2 = 4 KJ</em>
Leftover Energy : <em>10.24 KJ - 4 KJ = 6.24 KJ
</em>
Movement of BOTH cars :<em /><em>
6.24 = 4000kg * v^2
</em>v = √(6.24 / 4000) =0.04 m/s = 4 cm/s
<span>Gay-Lussac's Law: The Pressure Temperature Law</span>
Here we have been given two charged body W and X.
We are asked to determine the nature of charge.
Before coming into conclusion, first we have to understand the electric field lines.
The electric field lines are pictorial representation of imaginary lines which are drawn to denote the electric field in a graphical way.
The electric field line starts from a positive charge and ends at a negative charge.It means for positive charges the electric field lines are outward and for negative charges the filed lines will be inward.
In the given diagram,the filed lines for W is towards W itself.The same is also in case of X.
Hence both the charges must be negative in nature.
Hence the correct answer to the question will be B i.e W negative and X: NEGATIVE.
Astronauts in space<span> do </span>talk<span> to each other. In the spacecraft, there is plenty of air, so they just </span>talk<span> normally. When they are spacewalking, they </span>talk<span> by means of radios in their helmets. The radio waves, again, have no problem in </span>space<span>, but they're not sound.</span>
Complete Question
The complete question is shown on the first uploaded image
Answer:
The mass of the other block is 
Explanation:
From the question we are told that
Mass of the first block is 
The height is 
The time it takes it is 
Generally from kinematic equation
Here u is the initial velocity which zero given that it was at rest initially
So
=> 
=> 
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Generally from the diagram the resultant force due to the weight of the first object and the tension on the string is mathematically represented as
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=> 
=> 
Generally from the diagram the resultant force due to the weight of the second object and the tension on the string is mathematically represented as
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=>
