Answer:
Power of a machine is defined as its rate of doing work. It is the rate of transfer of energy. The power of a machine is said to be one watt if it can work at the rate of one joule in one second.
Explanation:
Answer:
a) C_v = 1.005 KJ/kgK
b) C_v = 1005.000 J/kgC
c) C_v = 0.240 kcal/kgC
d) C_v = 0.240 Btu/lbmF
Explanation:
Given:
- constant-pressure specific heat C_v = 1.005 KJ/kgC
Find C_v in units of:
a) kJ/kg·K
b) J/g·°C
c) kcal/ kg·°C
d) Btu/lbm·°F
Solution:
a) C_v is Specific heat capacity is the quantity of heat needed to raise the temperature per unit mass. Usually, it's the heat in Joules needed to raise the temperature of 1 gram of sample 1 Kelvin or 1 degree Celsius. Hence,
C_v = 1.005 KJ/kgK
b)
C_v = 1.005 KJ/kgC * ( 1000 J / KJ)
C_v = 1005.000 J/kgC
c)
C_v = 1.005 KJ/kgC * ( 0.239006 kcal / KJ)
C_v = 0.240 kcal/kgC
d)
C_v = 1.005 KJ/kgC * ( 0.947817 Btu / KJ) * ( kg / 2.205 lbm)*(Δ1 C / Δ1.8 F)
C_v = 0.240 Btu/lbmF
Answer:
0.0432 m^3/s
Explanation:
Internal diameter of smaller pipes = 2.5 cm = 0.025 m
pipa wall thickness = 3 mm = 0.003 m
internal diameter of larger pipes = 8 cm = 0.8 m
velocity of region between smaller and larger pipe = 10 m/s
Calculate discharge in m^3/s
First we calculate the area of the smaller pipe
A =
=
= 0.00023571 m^2
next we calculate area of fluid between the smaller pipes and larger pipe
A = ![[\frac{\pi }{4} D^{2} _{L} ] - 3(A_{s})](https://tex.z-dn.net/?f=%5B%5Cfrac%7B%5Cpi%20%7D%7B4%7D%20D%5E%7B2%7D%20_%7BL%7D%20%20%5D%20-%203%28A_%7Bs%7D%29)
= ![[ \frac{\pi }{4} (0.08 )^2 - 3 ( 0.00023571 )]](https://tex.z-dn.net/?f=%5B%20%5Cfrac%7B%5Cpi%20%7D%7B4%7D%20%280.08%20%29%5E2%20-%203%20%28%200.00023571%20%29%5D)
= [ 0.00502857 - 0.00070713 ]
= 0.00432144 m^2
hence the discharge in m^3/s
Q = AV
= 0.00432144 * 10
= 0.0432 m^3/s
A) One gallon is the same as 3,800 microliters
select all the correct displays
A) one gallon is the same as 3800ukm
B)One gallon is the same 3,800 milimiters
C) one gallon is the same as 3800mL
D) One gallon is the same as 3,800 microliters (the initial sentence is correctly)
b) A gallon is the same as 3,800 cubic centimeters.
the initial sentence is false (it should say that a gallon equals 3,800 cubic inches) so all of the following are correct displays:
A) a gallon is the same as 3800 cubic millimeters.B) One gallon is the same as 3,800 cubic centimeters.C) A gallon is the same as 3,800 cubic inches.D) One gallon is the same as 3800 cubic inches.
c) A liter equals 2.1 U.S pints.
A) True (correct display would be 58-1/2 U.S fluid ounces)B) False
c) One gallon equals 3,800 cubic inches.A) True (correct display would be 58-1/2 U.S fluid ounces)B) False
d) There are 231 cubic inches in a gallon
A) TrueB) False
e) A liter is 1,000 milliliters.
A) True (correct display would be 2.1 U.S pints)B) False
e) A cubic centimeter is equal to 1 milliliter
A) TrueB) False
f) It takes 4 quarts to make a gallon.A) TrueB) False
g) There are 550 milliliters in a liter.
A) TrueB) False
h) A cubic inch is the same as 16 milliliters.A) TrueB) False
i) A liter is 1,000 cubic centimeters.
A) TrueB) False
j) There are 4 quarts in a gallon.
A) True (correct display would be 216 U.S fluid ounces)B) False
k) A milliliter is equal to 0.001 liter (the initial sentence will be correctly displayed as: a milliliter equals 0,001 liters).A) TrueB) False
l) There are 3 pints in a liter.
A) TrueB) False
m) A liter is 1,000 milliliters.
A) True (correct display would be 2.1 U.S pints)B) False
n) There are 231 cubic inches in a gallon.
A) True (correct display would be 58-1/2 U.S fluid ounces)B)