Answer:
1. The normal force acting upon the car is best represented by arrow <u>A</u>.
Reason:
The direction of normal force is always upward and opposite to gravitational force that why A is correct option.
2. The force of gravity acting upon the washers is best represented by arrow <u>B</u>.
Reason:
The direction of gravitational force is always downward toward the center of gravity and opposite to normal force that why B is correct option.
3. The applied force on the car is best represented by arrow <u>C</u>.
Reason:
The direction of applied force is along the direction in which it moves. that why C is correct option.
I believe a pot of water that is being heated by a electric burner. This is because the warmer water moves to the top and the cooler water moves down to the bottom of the pot. This causes a circular motion. The next example of convection heat is a hot air ballon rising and falling in the atmosphere. A radiator is also because the hot air is drawn out the top and the cooler air is drawn to the bottom.
Answer:
D. Water
Explanation:
the covalent bonds of water are stronger than the ionic bonds in the salt molecules so they dissolve.
