Temperature is a measure of _____.
2 answers:
Answer: Option (b) is the correct answer.
Explanation:
Movement of molecules of a substance is dependent on temperature also. This is because energy obtained by an object due to its motion is known as kinetic energy.
Also,
Hence, kinetic energy is directly proportional to temperature which means that when there is increase in temperature then there will occur an increase in molecular movement of the substance.
Similarly, a decrease in temperature will lead to a decrease in molecular movement of the substance.
Thus, we can conclude that temperature is a measure of molecular movement .
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Answer:
Explanation:
let the charge is q. velocity, v = 24.7 m/s
magnetic force, F = 2.38 x 10^-4 N
Let the magnetic field is B.
Velocity, v' = 5.64 m/s
angle, θ = 21.2°
The force experienced by a charged particle placed in a magnetic field is given by
F = q x v x B x Sinθ
in first case
2.38 x 10^-4 = q x 24.7 x B x Sin 90 .... (1)
in second case
F = q x 5.64 x B x Sin 21.2° .... (2)
Divide equation (2) by equation (1), we get
F = 1.97 x 10^-5 N
Answer:
Explanation:
I'm assuming the units for force and mass are Newtons and kilograms, respectively.
Rearranging Newton's first law (F=m*a) to solve for acceleration:
F=m*a
The acceleration is 4 meters per second squared and was found by rearranging Newton's first law in order to solve for acceleration.
B) The heat absorbed by the engine is 
while the heat expelled is 
, therefore the work done by the engine is the difference between the heat absorbed and the heat expelled:
a) The efficiency of the engine is the ratio between the work done by the engine and the heat absorbed, therefore:
a) The efficiency of the engine is the ratio between the work done by the engine and the heat absorbed, therefore: