Answer:
9.801 m/s²
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity = 39 ft/s
s = Displacement = 720 cm = 7.2 m
a = Acceleration
Converting to m/s
Equation of motion
Acceleration of the ball is 9.801 m/s²
Most of the time the towns get flooded and many people die and lose their homes and their jobs, businesses by the floods and the natural environment is destroyed ,air pollution is produced, the ecosystem could be disrupted and dams are known to fall over and dams are really expensive to build, The dams also cause geological damage, example earthquakes and spills happen.
(a) work=Fd
<span>345x24=8280J </span>
<span>(b) work=Force of friction*d </span>
<span>Force of friction =coefficient*normal force=.22x1.5x10^3=330 </span>
<span>330*d=7920J </span>
<span>(c) net work =8280-7920=360J</span>
Answer:
The temperature is (-19.67) degrees Celsius.
Explanation:
It is required to find the temperature if the speed of sound through air is measure to be 319 m/s.
The speed of sound in terms of temperature is given by :
T is temperature and v = 319 m/s
So, the temperature is (-19.67) degrees Celsius.