Answer:
Reflective
Explanation:
The radiation pressure of the wave that totally absorbed is given by;
and While the radiation pressure of the wave totally reflected is given by;
Now compare the two-equation you can clearly see that the pressure due to reflection is larger than absorption therefore the sail should be reflective.
Answer:
A . pE=mgh 450kg*50m*10m/s^2=225000Joule
Explanation:
potential energy equals (mass) (gravity) (height)
Answer:
the difference of electrical potential between two points.
Answer:
meter per second square
Explanation:
Given
Height ,h 
m
Radius, r 
m
Distance travelled, 
m
Since, the stone is released and it falls towards the sky, its initial velocity is zero
As per equation
, we will evaluate "t"
Substituting the given values in above equation, we get
Velocity
centripetal acceleration
Answer:
Drag, which is a force preventing the ball from going faster than it was thrown, this increases as velocity increases. Gravity, which Is pulling down on the ball.
Explanation:
