The diagram is in the picture attached.
Options are:
A) 32 °C
B) 70 °C
C) 92 °C
D) 100 °C
In order to find the value required, you need to look at the diagram and follow these steps:
1) search for the value of 70 kPa on the y-axis;
2) move on a horizontal line towards the right until you reach the line D;
3) move on a vertical line down, towards the x-axis;
4) read at what value of °C you are at.
Doing so, you can see that you are at a value a little bit above 90 °C (see picture).
Hence, the correct answer is
C) 92°C.
Answer:
C. The final kinetic energy is equal to the initial potential energy.
Explanation:
Based on the Principle of energy conservation:
Sum of the Initial Energy = Sum of the Final Energy
Initial Kinetic Energy + Initial Potential Energy = Final Kinetic Energy + Final Potential Energy..........(1)
Since according to the question:
Initial Kinetic Energy = 0
Final Potential Energy = 0
The equation (1) above reduces to
Initial Potential Energy = Final Kinetic Energy
Answer:
option D
Explanation:
The correct answer is option D
Potential energy of an object is because of its location.
Expression of potential energy
P E = m g H
where H is the height of the object.
g is acceleration due to gravity, 9.8 m/s²
m is the mass of the object.
Potential energy is directly proportional to the location of the object.
If the height of the object is more than the potential energy of the object will also increase.
A). gram
No. This is a unit of mass.
b). centimeter
No. This is a unit of length.
c). cubic centimeter
Yes. Volume.
d). square centimeter
No. This is a unit of area.