Answer:
a) 
b) 
Explanation:
Given:
- mass of the ball thrown up,
- initial velocity of the ball thrown up,
- height above the ground from where the ball is thrown up,
a)
Maximum height attained by the ball above the roof level can be given by the equation of motion.
As,
where:
final velocity at the top height of the upward motion 
acceleration due to gravity
height of the ball above the roof
Now,
Therefore total height above the ground:
b)
Now we find the time taken in raching the height 
:
final velocity at the top of the motion
So,
Now the time taken in coming down to the ground from the top height:
where:
is the initial velocity of the ball in course of coming down to ground from the top
Here the direction acceleration due to gravity is same as that of motion so we are taking them positively.
Therefore the total time taken in by the ball to hit the ground after it begins its motion:
Answer:
small intestine, tongue and large intestine
Explanation:
The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
<span>newton say that she must use her hand to put up the cup because the work is equal to force times it distance, that is in the same direction of the force applied. if carole used her hand to put up the cup, then he is not applying any work because the displacement is not in the same direction of the force</span>
