Answer:
-9.4 kg m/s
Explanation:
Change in momentum = final momentum − initial momentum
Δp = p − p₀
Δp = -4.3 kg m/s − 5.1 kg m/s
Δp = -9.4 kg m/s
Impulse = change in momentum
J = Δp
J = -9.4 kg m/s
Answer:
The magnetic force is 
Explanation:
From the question we are told that
The charge is 
The velocity is 
The magnetic field is 
Generally the magnetic force is mathematically represented as

=> 
=> 
=>
N/B - Applied cross - product of unit vector
Explanation:
We have,
Length of a metal rod is 55 cm or 0.55 m
Change in length is 0.2 cm or 0.002 m
It is required to find the change in temperature of a metal rod. The coefficient of linear expansion is given by :

is the change in temperature

So, the change in temperature is 303.03 degrees Celsius.
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One of the most important reasons is that when mountains were built there were events such as tilting. Because of that most of the sedimentary rocks were no longer horizontal.We know that because of the law of original horizontality