Answer:
This slide shows the three forces that act on a baseball in flight. The forces are the weight, drag, and lift. Lift and drag are actually two components of a single aerodynamic force acting on the ball. Drag acts in a direction opposite to the motion, and lift acts perpendicular to the motion
Answer:
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Answer with Explanation:
We are given that the mathematical form of wave
a.We have to find the speed of propagation of this wave
In given mathematical form
k=Wave number
=Angular frequency
A=Amplitude
We know that
Speed of propagation of the wave=
b.Differentiate w.r.r t
The velocity 
of a point on the string as a function of x and t is given by
Answer:
63.0 x (6.02 x 10^23) = 3.79 x 10^25 atoms of gold
Explanation:
There are 6.02 x 10^23 representative particles in a mole of any substance. Multiply it by the number of moles, and you will get the number of representative particles (atoms, molecules, formula units)
