Because some of the energy is wasted and the amount of energy wasted is based on the efficiency of the machine
They send out waves differently and cannot be heard easily
Answer:
Solids
Explanation:
Solids, liquids, and gases all have mass.
Answer:
Option A is correct.
(The faster object encounters more resistance)
Explanation:
Option A is correct. (The faster object encounters more resistance)
Air resistance depends on various factors:
- Speed of the object
- Cross-sectional area of the object
- Shape of the object
Formula:

As the speed of the object increases the amount of Air resistance/drag increases on the object, as the above formula shows direct relation between Air resistance/drag and velocity i.e F ∝ v^2.
Answer:
I would hope they can change this question