Answer:
Explanation:
Given that
We know that from continuity equation
So
Now from energy equation
Q=6.17 x 0.08
Answer:Impossible to answer without knowing their actual initial speeds
Explanation:
Given
Ball A launched at angle of 
Ball B is launched at angle of 
At the highest point Ball vertical velocity will be and there will be only horizontal velocity i.e. 
and 
where 
is the velocity of A & B
thus to find which one is greater we need to know their initial velocity.
It is impossible to know which one have higher velocity at highest point.
Let D be the total distance (say in meters) traveled by the train and T the time (say in seconds) it takes to do so. (Assume the train moves in a straight line in only one direction.) Then the average velocity of the train as it covers this distance is
v (ave) = D/T
We're told the train can traverse a distance of D/4 in a matter of T/2 seconds if it moves at a speed of 5 m/s. This means
D/4 = (5 m/s) (T/2)
⇒ 5 m/s = 1/2 D/T
⇒ v (ave) = D/T = 10 m/s
Tension pointing up at the top
Weight pointing down at the bottom
If there is someone standing inside the elevator, there will be a normal reaction force pointing down at the bottom.
If a scientist is studying a model that is a widely accepted theory about the position of planets and sun, the model would most likely help the scientist to understand facts that can't be easily observed. That will make the correct answer to be C.
