Answer:
1. 80,000 Pa
2. 11.3 m/s
3. 12.5 m/s
Explanation:
<u>Question 1</u>
Pressure, 
Where h is the height that water is to reach, g is gravitational constant and 
is the density, in this case, we assume of pure water as 
Assuming 
P=8*10*1000=80000 Pa
<u>Question 2</u>
Pressure can also be found by the formula
where v is the velocity
Equating the new formula of pressure to the formula used in question 1 above
Notice that is common hence
Making V the subject of the formula
In this case, h=8-1.6=6.4m and taking g as 10 m/s^{2}
Rounding off to 1 decimal place
v=11.3 m/s
<u>Question 3</u>
As already illustrated
Taking g as 9.8 and h now is 8m
v=12.52198067
Rounding off to 1 decimal place
v=12.5 m/s
The Vapor Pressure of water increases by 5.1%. when the temperature increases by 1 °c from 14°c to 15°c.
The vapor pressure of a liquid, sometimes referred to as the equilibrium pressure of a vapor above its liquid, is the pressure of the vapor produced by the evaporation of a fluid (or solid) over a sample of the liquid (or solid) in such a closed container (or solid).
Vapor pressure is the term for the force that is produced as liquids evaporate. Three factors commonly have an effect on a vapor press: surface area, intermolecular forces, and temperature. The vapor pressures of molecules change with temperature.
To know more about Vapor Pressure visit : brainly.com/question/14718830
#SPJ4
Hooke's law is stated as: F = -kx
Where:
F = Force to compress or extend a spring (unit N)
k = Spring constant
x = displacement of spring
Or to help you in your native language:
<span>F = adalah gaya
</span><span>k = adalah konstante pegas
</span><span>x = adalah jarak pergerakan pegas dari posisi normalnya</span>
Answer:
The thermal power emitted by the body is 
The net power radiated is 
Explanation:
From the question we are told that
The length of the assumed hum
an body is L = 2.0 m
The circumference of the assumed human body is 
The Stefan-Boltzmann constant is 
The temperature of skin 
The temperature of the room is
The emissivity is e=0.6
The thermal power radiated by the body is mathematically represented as
substituting value
The net power radiated by the body is mathematically evaluated as
Where A is the surface area of the body which is mathematically evaluated as
substituting values
=> 
=> 
Answer:
It won't stop
Explanation:
If it is a frictionless surface ....the block will not stop until another force acts on it
