Answer:
Distance travel s = 296.8 m
Explanation:
Given:
Initial velocity u = 6.5 m/s
Constant acceleration a = 2.1 m/s²
Time T = 14 s
Find:
Distance travel s
Computation:
s = ut + (1/2)at²
s = (6.5)(14) + (1/2)(2.1)(14)²
s = 91 + 205.8
Distance travel s = 296.8 m
The work and heat transfer isothermal internally reversible process.
An isothermal procedure is a thermodynamic procedure in which the temperature of a gadget stays consistent. The transfer of heat into or out of the gadget occurs so slowly that thermal equilibrium is maintained. The melting of ice at 0 diploma is an example of isothermal technique. The reaction in a warmth pump is an example of isothermal manner. In Isothermal manner temperature is constant for the duration of the procedure and follows Boyles regulation.
Given,
Gas at initially P1= 2.8 bar
P2 = 14 bar
isothermal reversible process,
Compressed pressure at 60°C
(a) R = 134a
For Refrigerant 134a R134a
At P1 = 14 bar T1 = 600C
S1 = 0.9389 KJ/Kg K
V1 = 264.64 KJ/kg
At
P2 = 2.8 bar T2 = 600C
S2 = 1.1142 KJ/Kg K
V2 = 278.56 KJ/kg
T = 60 + 273 = 333K
Q= 2 Tds
2 Q=T ſ ds
= T(S2-S1)
= 333 ( 1.1142 - 0.9389 )
= 58.3749 KJ/Kg
Heat transfer Q = 58.3749 KJ/Kg
(b) air as an ideal gas.
Q= 2 Tds
2 Q=T ſ ds
= T(S2-S1)
=T-R In P2 P1
= 333 * -0.287 In 2.8 14
= 153.81 KJ/Kg
Heat transfer Q = 153.81 KJ/Kg
W = Q - ΔV
= 28.3749 - (278.56-264.64)
= 14.4549 KJ/Kg
Work W = 14.4549 KJ/Kg
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Answer and Explanation:
The distinction between Endangered species and Extict species is Given as under:
Endangered Species:
Endangered species are categorized as those species of flora and fauna which are on the verge of extinction if not provided timely protection in order to save them from getting extinct.
Some of the endangered species are African Penguin, Bengal Tiger, Blue Whale, etc
Extinct Species:
Those species of Flora and Fauna which have vanished completely or either from the wild i.e., that individuals of that species are not alive any more and have completely disappear from the earth.
In practice, if a species is not seen for over a period of 50 years it is considered to be extinct.
Some of the extinct species are Dodo, Passenger Pigeon, Great Aulk, etc.
Answer:
61.4 s
Explanation:
The distance d₁ traveled by the asteroid:

The distance d₂ traveled by the space ship:

The total distance d:

Solving for time t:

Answer:
m1v1=m2v2, v2=4.3m/s KE=(0.5)(2.94)(4.3)=6.2J