Answer:
For the air:
Final Velocity 160.77m/s
Final Elevation 1,317.43m
the Internal, Kinetic, and Potential Energy changes will be equal.
Explanation:
In principle we know the following:
- <u>Internal Energy:</u> is defined as the energy contained within a system (in terms of thermodynamics). It only accounts for any energy changes due to the internal system (thus any outside forces/changes are not accounted for). In S.I. is defined as where is the mass (kg), is a specific constant-volume (kJ/kg°C) and is the Temperature change in °C.
- <u>Kinetic Energy:</u> denotes the work done on an object (of given mass ) so that the object at rest, can accelerate to reach a final velocity. In S.I. is defined as where is the velocity of the object in (m/s).
- <u>Potential Energy:</u> denotes the energy occupied by an object (of given mass ) due to its position with respect to another object. In S.I. is defined as , where is the gravity constant equal to and is the elevation (meters).
<em>Note: The Internal energy is unaffected by the Kinetic and Potential Energies.</em>
<u>Given Information:</u>
- Temperature Change 0°C → 18°C ( thus °C )
- Object velocity we shall call it and , for initial and final, respectively. Here we also know that
- Object elevation we shall call it and , for initial and final, respectively. Here we also know that
∴<em> We are trying to find and of the air where , and are equal.</em>
Lets look at the change in Energy for each.
<u>Step 1: Change in Kinetic Energy=Change in Internal Energy</u>
Here we recall that and mass is the same everywhere. Thus we have:
Eqn(1)
<u>Step 2: Change in Potential Energy=Change in Internal Energy</u>
Here we recall that and mass is the same everywhere. Thus we have:
Eqn(2).
Finally by plugging the known values in Eqns (1) and (2) we obtain:
Thus we can conclude that for the air final velocity and final elevation the internal, kinetic, and potential energy changes will be equal.
Yes they should all be going the same speed.
Hope this helped :)
Answer:
The weight will be smaller than on Earth.
Explanation:
We call weight, to the product of the mass times the acceleration produced on this mass, due to the Universal law of gravitation.
This acceleration can be obtained applying Newton’s 2nd Law to the gravitational attractive force, as follows:
Fg = G m1m2 / (r12)2 = m1* a → a= G m2 / (r12)2 =g
If we take a planet with the same mass, but a larger size, this means that the distance, from the planet’s surface to the center, will be larger also.
As the gravitational attraction is inversely proportional to the square of the distance, this means that the acceleration caused by this force, will be smaller than on Earth.
As the mass is an universal constant, this means that the weight (as measured on a scale as the normal force) will be smaller also.
D. Volume will increase
Volume and temperature are directly proportional for a gas.
Rescue someone from a huge fire, hurricane, earthquake, transport someone one really sick, someone going into surgery.