Sonar, originally an <span>acronym for SOund Navigation And Ranging
</span>a technique that uses sound<span> propagation.</span>
Answer:
protons
Explanation:
The proton identifies an atom as that of a particular element. The atomic number is equal to the number of protons in the nucleus of an atom.
Answer:
Friction force is equal to the coefficient of friction times the normal force.
Explanation:
It does not really matter if the force is side or not. You need to draw a free body diagram, add weight, normal force, friction force and active force. Then see the horizontal and vertical components to calculate what is the normal force.
Answer:
No, some energy will be dissipated energy due to work of air resistance.
