<u>Answer: </u>
<em>Considering the II law of thermodynamics</em>
<em>From the figure</em>
<em>Out put of energy: </em>
Heat supplied from the source/ reservoir (Q₁) - Heat rejected to the surroundings from the system (Q) = Q₁ - Q₂. Also known as Net work done on the system.
<em>Input of energy: </em>
Amount of heat energy supplied to the system from the source (Q₁ ).
Efficiency (H.E) = η = Output÷ Input
η = (Q₁ - Q₂) ÷ Q₁
OR η = Wnet ÷ Q₁ ; since Wnet = (Q₁ - Q₂)
Answer:
His acceleration is -0.0625 m/s².
Explanation:
Given:
Initial velocity is, 
Final velocity is, 
Time taken for the change is, 
Acceleration of a body is defined as the rate at which the velocity is changing. Acceleration is positive if there is increase in velocity with time and acceleration is negative when the body slows down or there is decrease in velocity with time.
Here, there is decrease in velocity over the given time. Therefore, the acceleration is negative and is given as:
Therefore, his acceleration is -0.0625 m/s².
Answer:
Option D
48 N
Explanation:
From Newton's law of motion we deduce that the magnitude of force is a product of mass and acceleration hence expressed as, F=ma where F is the magnitude of force, m is the mass of the object and a is the acceleration of the cart. Substituting 24 kg for m and 2 for acceleration then
F=24*2= 48 N
<span>Vibration is the Answer</span>
Answer:
hold on im going to answer the best I can
