Answer:
Explanation:
# taking first number
low = int(input("Enter a number: "))
# if that is valid
if low >= 0:
# considering it as high, sum and input
high = low
sum = low
count = 1
inp = low
# breaking if negative number is entered
while True:
# taking user input of numbers
inp = int(input("Enter a number: "))
if inp >= 0:
# adding it to sum
sum = sum + inp
# checking for low
if low > inp:
low = inp
# checking for high
if high < inp:
high = inp
# tracking count
count = count + 1
else:
break
# printing output
print("\nSum =",sum)
print("count =",count)
print("Average =",round(sum/float(count),2))
print("Lowest =",low)
print("Highest =",high)
# no valid numbers
else:
print("no valid numbers entered")
Explanation:
The following evidence could be used by an engineer;
The study of areodynamics and the fact that there are four parameters lift, weight, thrust and drag can explain the flying of airplanes in sky
Lift is a force that pushes the plane to rise ad it is actually the design of wings and their movements that create this lifting force
Weight is the force necessary to consider to make the plane fly and land
Then comes thrust, developed via engines or propellers of an airplane.
Last force is drag which defines the force needed to keep the plane pass through air.
A well calculated combination of all four forces actually make a plan fly
Answer:
Weight of block is 191.424 Kg
Explanation:
The volume of rectangular block =
cubic meter
1/5th of its volume being out of water which means water of volume nearly 4/5 th of the volume of rectangular block is replaced
Volume of replaced water =
cubic meter
Weight of replaced water = weight of rectangular block =
Kg/M3
= 191.424 Kg
Classify orders of soil, Climate, Plant type, & Soil Composition.
Answer:
4.18 J/KgK
Explanation:
Equilibrium point is reached when
m₁*c₁(T₁-T) = m₂*c₂(T -t₂)
m1 = 20
c1 = 0.5
T1 = 450
m2 = 150 kg
c2 = 2.6
T2 = 50
putting these values into the formula
20*0.5 (450-T) = 150*2.6(T - 50)
4500 - 10T = 390T<em> - 19500</em>
4500 + 19500 = 390T + 10T
24,000 = 400T
T = 24000/400
= 60⁰C
ΔSmetal = m1*c1In[t + 273]/[T1+273]
= 20*0.5 In (60+273)/450+273
= 10 ln(333/723)
= 10 * -0.7752
= -7.752
ΔS/oil =
m2*s2(60 + 273)/50 + 273)
= 150*2.6ln(333/323)
= 390 * 0.03048
= 11.88j/KgK
Δ<em>total = -7.7+11.8</em>
<em>= </em><em>4.18J/KgK</em>
this is the enthropy change