Answer:
Mark me as brain list plz
Explanation:
Using Bernoulli's Theorem
1/2 V12 +P1/d = 1/2V22 +P2/d
V1 = 17.4
V2 =0
1 /2 V12 = Pressure Difference / d
Where d = Density of air
Pressure Difference =( 1/2 V12) Density of air
Pressure Difference = 369.36
Force = Pressure difference * area = 369.36 *3.5 = 1292.8 N
Answer:
Gravity is a natural phenomenon that causes all massive objects to attract each other. The magnitude or force of this interaction depends on the masses and distance of the bodies. This causes objects to fall toward Earth, for example, and keep satellites and celestial bodies in their orbits, such as the Earth's orbit around the Sun. Gravity also causes the tidal phenomenon.
In physics, gravity can be approximated by Isaac Newton's laws of gravity. Although the accuracy of the law is sufficient, for example, when calculating the orbits of spacecraft, gravity is best described by Albert Einstein’s general theory of relativity, in which it is considered the curvature of space-time.
A rope held tightly posses elastic potential energy. when the rope is held tightly, it gets stretched by some amount and in a way the rope gets deformed. The rope tends to get its original shape back when the rope is released. some work is done to deform or stretch the rope against the restoring force between the particles and this work done reflects as elastic potential energy.
Elastic potential energy.
"They are new ideas" is the statement among the choices given in the question that <span>best explains the reason why scientific ideas lack scientific consensus. The correct option among all the options that are given in the question is the second option or option "B". I hope that the answer has come to your help.</span>
The change in internal energy of the gas is -9 J
Explanation:
First of all, we need to calculate the amount of work done by the gas. This is given by the equation:
where
is the gas pressure
is the final volume of the gas
is the initial volume of the gas
Substituting, we find:
Now we can apply the 1st law of thermodynamics to calculate the change in internal energy of the gas:
where
is the change in internal energy of the gas
Q = -45 J is the heat released by the gas (negative because it is given off bu the system)
W = -36 J is the work done by the gas (negative because it is done by the surrounding on the gas)
Substituting, we find:
Learn more about ideal gases:
brainly.com/question/9321544
brainly.com/question/7316997
brainly.com/question/3658563
#LearnwithBrainly
