Answer:
c. 0.71 [s]
Explanation:
To solve this problem we must use the following equation of kinematics.
where:
Vf = final velocity = 0 (because when the ball reaches the top, there is no movement)
Vo = initial velocity = 7 [m/s]
g = gravity acceleration = 9.81 [m/s²]
t = time [s]
Note: The negative sign of the equation means that the movement is againts the direction of the gravity acceleration.
Answer:
Temperature reduces the wind speed on earth.
<u>Explanation:</u>
- Wind speed is an atmospheric quantity that causes the wind to flow from high to low level due to a change in temperature.
- Wind speed is controlled by the pressure gradient factor and it increases the wind speed with increase in pressure gradient.
- Wind speed decreases with an increase in temperature value as it absorbs the heat developed in the system and wind gets slowed down.
- Wind speed is measured in velocity and anemometer is used to measure the rate of wind speed.
One is for far distance the other is for close range
Answer:
smoking factories cars buildings
Explanation: