Answer:
3 sec
If you are driving a 30-foot vehicle at 55 mph, how many seconds of following distance should you allow? 30ft truck. = 3 sec. Since the truck is over 40 mph.
Explanation:
Answer:
(a) T₂ =747.5 and K= 474.5 °C (b) 330.178 kJ/kg
Explanation:
Solution
T₁ = 35°C = 308
the first step to take is to Use the Table A-17: Ideal gas properties for air:
Now,
At T₁ = 308 K
V₁ = 217.67 + [308-305/310-305] (221.25 -217.67)
So,
V₁ =219.818 kJ/kg
Thus,
Vr₁ = 596 + [308-305/310-305] (572.3 - 596)
= 581.78
so,
Vr₂/Vr₁ = 1/10
Vr₂ =58.178
Applying Table A-17, at Vr₂ = 58.178
Then,
(a) T₂ = 740 + [58.178 - 59.82/57.63 -59.82] (750 -740)
T₂ = 747.5 and K = 474.5 °C
V₂ =544.02 + [58.178 - 59.82/57.63 -59.82] (551.99 - 544.02)
so,
V₂ =549.996 kJ/kg
Hence,
(b) q - w = v₂ -v₁
= 0 -w = 549.996- 219.818
w = 330.178 kJ/kg
Answer:
Television's use 2 portions of the electromagnet spectrum and that is Visible light and radio waves.
Explanation:
Visible light helps us see the picture on the television and radio waves are used to send pictures to television's screen.
Answer:
total_cost = cost + tax
Explanation:
Step1) Let the 2 variable for take input from user e.g price and quantity
var price ;
var quantity ;
var cost ;
var tax ;
var total_cost ;
Step2) take input from user quantity of item 'A'
step3) cost = price * quantity
Step4) tax = 0.08 * cost
Step5) total_cost = cost + tax
Step6) print the total_cost
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