D.very small amounts of mass.
Answer: 4 times grease
Explanation: Force F= C · q1·q2/r². C = Coulomb's constant.
If charges double you have 2q1 and 2q2.
In which it is the plane in which charges move. for example in electromagnetic waves polarization<span> means the plane in which electrons oscillate. ... it is the distribution of electric charges (electron) in an object. </span>induction<span> of charges takes place in some insulators just by some mechanical interaction such as rubbing</span>
Answer:
a) 75.5 degree relative to the North in north-west direction
b) 309.84 km/h
Explanation:
a)If the pilot wants to fly due west while there's wind of 80km/h due south. The north-component of the airplane velocity relative to the air must be equal to the wind speed to the south, 80km/h in order to counter balance it
So the pilot should head to the West-North direction at an angle of
![cos(\alpha) = 80/320 = 0.25](https://tex.z-dn.net/?f=cos%28%5Calpha%29%20%3D%2080%2F320%20%3D%200.25)
relative to the North-bound.
b) As the North component of the airplane velocity cancel out the wind south-bound speed. The speed of the plane over the ground would be the West component of the airplane velocity, which is
![320sin(\alpha) = 320sin(75.5^0) = 309.84 km/h](https://tex.z-dn.net/?f=320sin%28%5Calpha%29%20%3D%20320sin%2875.5%5E0%29%20%3D%20309.84%20km%2Fh)