Answer:
height = 45 m
Explanation:
Initial velocity = 0 m/s
Final velocity = 30 m/s
Acceleration due to gravity = +10m/s^2 ( because ball is going down )
Using the eqn of motion
![{v}^{2} - {u}^{2} = 2gh](https://tex.z-dn.net/?f=%20%7Bv%7D%5E%7B2%7D%20%20-%20%20%7Bu%7D%5E%7B2%7D%20%20%3D%202gh)
where v= final velocity ; u = initial velocity ; g = acceleration due to gravity ; h = height
So,
![{30}^{2} - {0}^{2} = 2 \times 10 \times h](https://tex.z-dn.net/?f=%20%7B30%7D%5E%7B2%7D%20%20-%20%20%7B0%7D%5E%7B2%7D%20%20%3D%202%20%5Ctimes%2010%20%5Ctimes%20h)
![= > 20h = 900](https://tex.z-dn.net/?f=%20%3D%20%20%3E%2020h%20%3D%20900)
![= > h = \frac{900}{20} = 45](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20h%20%3D%20%20%5Cfrac%7B900%7D%7B20%7D%20%20%3D%2045)
light, water, carbon dioxide
Explanation:
c02 , h20 and light
Impulse = Force * time
Impulse = 500N *0.5 s =250 N*s
This is a concept of momentum. In equation, momentum is the product of force and distance. When a ball is thrown, its force is constant all throughout unless disturbed by an external force. Therefore, force is the constant of proportionality that relates momentum with distance. When you block a ball from a given distance, you would feel the great force on your hand. In order to reduce the force, you have to follow the direction of the force in order to minimize the impact. By doing this, you gradually decrease the momentum of the ball.
Answer:
Explanation:
There are countless household appliances in every single house. One appliance with a low power rating would be a ceiling fan. On average ceiling fans consume roughly 60w and are found in the majority of houses. On the other side of the spectrum, we have a high power-rating appliance such as a microwave. Microwaves use anywhere between 1000w to 1800w of power in order to function correctly. This is very large power consumption and one of the highest power ratings found for appliances in a household.