When I throw a ball in the air at what point will it have the least kinetic energy
2 answers:
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The pressure increase at the bottom of the pool after they enter the pool and float is 106.103 Pa.
<h3>What is absolute pressure?</h3>Absolute pressure is the force that exists in a space when there is no matter present, or when there is a perfect vacuum. This absolute zero serves as the baseline for measurements in absolute pressure. The measurement of barometric pressure is the greatest illustration of an absolute referenced pressure. In order to determine absolute pressure, a complete vacuum is used. In contrast, gauge pressure is the amount of pressure that is measured in relation to atmospheric pressure, also referred to as barometric pressure.
given,
diameter = 6 m
depth = h = 1.5 m
Atmospheric pressure = P₀ = 10⁵ Pa
a) absolute pressure
P = P₀ + ρ g h
P = 10⁵ + 1000 x 10 x 1.5
P = 1.15 x 10⁵ Pa
b) When two person enters into the pool,
mass of the two person = 150 Kg
weight of water level displaced exists equal to the weight of person.
Area of pool
Height of the water rise
- Pressure increased
P = ρ g h
P = 1000 x 10 x 0.0106
P = 106.103 Pa
To learn more about absolute pressure refer to:
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Answer:
The time for the entire race is 11.39 sec.
Explanation:
Given that,
Distance = 15 m
Remainder distance = 100 m
Suppose A sprinter begins a race with an acceleration of 3.4 m/s².
We need to calculate the time
Using equation of motion
Put the value in the equation
We need to calculate the final velocity of sprinter
Using equation of motion again
Put the value into the formula
We need to calculate the distance covers by sprinter
The sprinter need to covers only 85 m.
We need to calculate the time
Using formula of time
Put the value into the formula
We need to calculate the time for the entire race
Put the value into the formula
Hence, The time for the entire race is 11.39 sec.