Answer:
A 0.17 kg baseball is launched from the roof of a building 14 m above the ground. Its initial velocity is 29 m/s at 40° above the horizontal. Assume any effects of air resistance are negligible.
(a) What is the maximum height above the ground that the ball reaches?
m
(b) What is the speed of the ball as it strikes the ground?
m/s
Answer and Explanation:
Bernoulli's Principle deals with Fluid dynamics and fluid includes both liquid and gas.
The Principle gives an inverse relation between the speed or velocity of the fluid and the pressure of the fluid. It gives the speed or velocity of the liquid over varying pressure.
Bernoulli's Principle states that for a given fluid,the low pressure region will have high speed or velocity and high pressure region will have low speed or velocity
Answer:
You can get w =Fxd 20Nx5m w=100N energy= w÷t 100N÷4s E=25J 3 you can apply 3J in one second
Since the speed of sound is very high, we consider the time period of thunder and lightening negligible.
Now, d = vt
thus, d = 343 x 16.2
thus, d = 5556.6 metres
Thus, we are 5556.6 metres away from lightening ( approximately)
