a passing warm front changes air pressure. does a passing warm front increase or decrease air pressure
2 answers:
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Answer:
a) Ffloor = 616.56[N]
b) Ffloor = 484.16 [N]
Explanation:
In order to solve this problem, we must first make a free body diagram. In this free body diagram include forces, as well as acceleration.
Then after the free body diagram, we perform a force analysis by means of Newton's second law, where the upward forces and even the upward acceleration will be taken as positive.
ΣF = m*a
where:
F = force [N] (units of Newtons]
m = mass [kg]
a = acceleration [m/s²]
g = gravity acceleration = 9,81 [m/s²]
a)
b) Using Newton's second law we have.
Answer:
Force,
Explanation:
Distance between proton is 0.005 m
It is required to find the force between two protons. Protons have of positive charge of . Two protons will have a force of repulsion between them. The force is given by :
So, the force between two protons is .
Answer:
speed does water emerge from the hole v= 2.8 m/sec
Explanation:
the depth of the rectangular trough h = 0.40 m full of water
Also, given One end of the trough has a small drain plug right at the bottom edge.
we have to find the speed does water emerge from the hole.
This can be done using law of conservation of energy
the potential energy of water will be converted into kinetic energy as
⇒
h= depth, g= acceleration due to gravity and v= velocity of water from the hole
plugging the values
v= 2.8 m/sec