How is humidity related to air pressure?
2 answers:
Answer: Humidity is inversely related to the air pressure.
Explanation:
Humidity is defined as the amount of water vapor present in air. Humid air has more water content in the air.
Air pressure is defined as the amount of air present in a column.
Humid air means less air content in the air and it further means low pressure.
From this, we can say that humidity is inversely related to the air pressure.
More, the humidity, less will be the air pressure and vice-versa.
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Answer:
The rope must have a force of 10084,21 N
Explanation
Acceleration calculation
The car acceleration is equal to the acceleration of the truck
ac: car acceleration
at: truck acceleration)
equation(1)
Known information:
vi = Initial speed = 0, ti = initial time = 0
vf = Final speed = 13 , t = final time =5 s
We replaced the known information in the equation(1):
Dynamic analysis
The forces acting on the car are the following:
Wc: Car weight
N: normal force, road force on the car
Ff: Friction force
T: Force of tension
Car weight calculation:
mc = Car mass = 2230kg
g = Gravity acceleration=9.8
Normal force calculation:
Newton's first law
Friction force calculation (Ff):
We have the formula to calculate the friction force:
Ff = μk * N Equation (3)
μk kinetic coefficient of friction
We know that μk = 0.373and N= 21854N ,then:
Calculation of the tension force in the rope (T):
Newton's Second law
T=10084,21 N
Answer: The rope must have a force of 10084,21 N