<h2>
a) Change in momentum is 4000 kg m/s in the direction of motion</h2><h2>
b) Magnitude of the force is 80 N</h2>
Explanation:
Force is given by rate of change of momentum.
Mass of object = 200 kg
Initial velocity = 5 m/s
Final velocity = 25 m/s
a) Change in momentum = 200 x 25 - 200 x 5
Change in momentum = 4000 kg m/s in the direction of motion
b) Time taken = 50 s
Rate of change of momentum = Change in momentum ÷ Time
Rate of change of momentum = 4000 ÷ 50
Rate of change of momentum = 80 N
Force = 80 N
Magnitude of the force is 80 N
The answer is c because it has nothing to do with the input and output force
Answer:Respiration of carbon dioxide by plant roots can lead to the formation of carbonic acid which can chemically attack rocks and sediments and help to turn them into soils. There are a whole range of weathering processes at work near the surface of the soil, acting together to break down rocks and minerals to form soil.
I hope this is helpful
Answer:
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction
Explanation:
Answer:
Explanation:
Specific Volume 
Absolute Pressure (a) 
Giving
(b) 
Giving
(a)
Generally the equation for quality of Steam X is mathematically given by
(b)
Generally the equation for quality of Steam X is mathematically given by
