Answer:
m
Explanation:
meaning that the way different people from around the world come together to play and converse brings about a universal language.we might not know their language but still through sports that we don't even need to know just play
Answer:
81.29 m/s
Explanation:
Given:
60°C = 333 K is cp = 1.007 kJ/kg·K.
at air inlet:
Pressure = 100 kPa
Temperature = 30°C
Velocity = 357 m/s
at air outlet:
Pressure = 200kPa
Temperature = 90°C
We can define the energy balance as:
- = Δ = 0
therefore, =
m + m =m + (taking m common and cancelling it)
4 + = +
The velocity at the exit of a diffuser:
= [ + 2 ( - )
= [ + 2 x 1000 x 1.007 x (30-90)
= 81.29 m/s
therefore, the velocity at the exit of a diffuser is 81.29 m/s
Answer:
Exit velocity = 498.3m/s
Explanation:
The energy balance for the system is given by:
Ein - Eout = ◇Esystem
Ein = Eout
Therefore
m' (h1 + V1^2/2) = m' (h2 + V2^2/2)
h1 + V1^2/2 = h2 + V2^2/2
The exit velocity will be:
V2 = [V1^2 + 2(h1 - h2)^0.5 = [V1^2 + 2(cp(T1 - T2)]^0.5
But cp = 1.007kJ/kg
V2 = [(357)^2 + 2(1.007)(90-30)(1000m^2/s^2)]^0.5
V2 = [127449 + 120840]^0.5
V2 = [248289]^0.5
V2 = 498.3m/s
The following list, which ranks stored energy from highest to lowest, also ranks spring constant from highest to lowest: X, W, Y, Z. Hence, option B is correct.
Potential energy is a form of stored energy that is dependent on the relationship among different components. When a spring is compressed or stretched, its potential energy increases. If a steel ball is raised above the floor as opposed to falling to the ground, it has more potential energy. It is capable of carrying out additional work when raised.
Potential energy is a feature of systems rather than of particular bodies or particles; for instance, the system created up of Earth and the elevated ball has more energy stored as they become further apart.
Potential energy develops in systems components whose configurations, or spatial arrangement, determine the amount of the forces they apply to one another.
The spring's potential elastic energy is stored as:
= (1/2) x (spring constant) x (distance compressed or stretched)²
So, the order from greatest to least will be:
X = 35
W = 24
Y = 22
Z = 15
To know more about Potential energy:
#SPJ6
Answer:
rapid diffusion of gas throughout the system
Explanation:
Answer:
J
b. Nuclear
c. Chemical
d. Electromagnetic
A wrecking ball on its way down before it hits a building is an example of ________ energy being converted into ________ energy.
a. kinetic, potential
b. potential, kinetic
c. potential, potential
d. kinetic, mechanical
A wrecking ball on its way down before it hits a building is an example of ________ energy being converted into ...
The answer to the first question is A. Heat, because in order to heat up or catch fire, the molecules have to vibrate quickly.
This wrecking ball is an example of potential energy being converted into kinetic energy, so your answer is B. potential, kinetic.
Source: I have had to answer both questions before.