The time, t, required to drive a fixed distance varies inversely as the speed, r. It takes 9 hr at a speed of 20 km/h to driv
1 answer:
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Explanation:
It is given that,
Height above which the stone was thrown, h = 10 m
Initial velocity of the stone, u = 8 m/s
Angle above the horizontal,
The horizontal component of velocity is,
The vertical component of velocity is,
Let t is the time of flight in vertical motion. The second equation of motion is :
t = 0.34 seconds
Let s is the range of the stone. It can be calculated as :
s = 2.46 meters
So, the range of the stone is 2.46 meters. Hence, this is the required solution.
Answer:
12 cm
Explanation:
= Initial pressure =
= Final pressure =
h = Depth of cylinder = 36 cm
g = Acceleration due to gravity = 10 m/s²
= Density of water = 1000 kg/m³
= Depth of lake = 20 m
From the ideal gas relation we have
The height of the cylinder of air in the bucket when the bucket is at the given depth is 12 cm