False. p waves, than s waves
The aero plane would only move forward when the thrust force exceeds the drag force.
<h3>What is a projectile?</h3>
The term projectile has to do with a motion that follows a curved trajectory through air. The motion of an airplane that is dropping relief packages to flood victims is a good example of a projectile.
Excluding the horizontal and vertical forces, there are four important forces that act on the airplane;
- Drag force
- Gravity
- Lift
- Drag
- Thrust
The aero plane would only move forward when the thrust force exceeds the drag force.
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Answer:
2.8 %
Explanation:
Power deliver by the cell = 4.2 x 10^-3 W
Power given to the cell = 0.15 W
The efficiency of the cell is defined as the ratio of power deliver by the cell to the power given to the cell.
So, the efficiency of the cell
= power deliver by the cell / power given to the cell
=
= 0.028
in percentage form = 0.028 x 100 % = 2.8 %
Thus, the efficiency of the photo voltaic cell is 2.8 %.
43 years old is the life expectancy
Answer:
The positive sign indicates that work is done by the gas.
Explanation:
Let consider that gas inside the cylinder behaves ideally and process is isothermal, so that change in internal energy can be neglected. The engine cylinder is modelled after the First Law of Thermodynamics:
The positive sign indicates that work is done by the gas.