Answer:
a.Internal temperature change is 90.49°F
b.Internal energy change is -2.43Btu/lbm
Explanation:
The energy balance for this steady-flow system can be expressed as:
Therefore,
#Since:
From tableA-1
#Replacing the values in the equation:
We have that
The answer is B. because NaCl are just two elements with one atom from each element
Answer:
The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude.
Explanation:
It is given that,
Mass of the car, M = 1500 kg
Mass of the rock, m = 0.1 kg
It is mentioned that a car traveling along a road is hit by a rock that creates a small crack in the car’s windshield. We need to find the correct option that describes the interaction between the windshield and the rock. We know that when one object hits another object, the force applied by object 1 on object 2 have equal and opposite reaction as per the Newton's third law of motion.
So, the car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude. Hence, the correct option is (c).
The distance must be one-third the original distance should be your answer! Hope this helps! :D
a rainbow comes from spreading all the white light the (light containing all colors) from the sun.
<span>The colors in the spectrum of an atom , Comes from the energy given up by transitions of electrons from one to another . The only colors are those whose photons have energies equal the same amount of energy changes that electrons in a particular atom can undergo.</span>