Answer:
axial stress in bar B = 25Mpa.
Deformation of bar A = 0.4mm.
Explanation:
PS: Kindly check the attached picture for the diagram showing the two bars that is to say the bar A and the bar B.
So, we are given the following data or information or parameters which we are going to use in solving this particular question or problem. Here they are;
The cross-sectional areas of Bars A and B = 400 mm2, the modulus of elasticity of bar A and bar B = 200 GPa, applied force = 10kN.
STEP ONE: The first step is to determine or calculate the axial stress in bar B. Therefore,
Axial stress in bar B = 10 × 10³ ÷ 400 × 10⁻⁶ = 25 Mpa.
STEP TWO: The second step here is to determine or calculate the deformation of bar A. Therefore,
The deformation of bar A = 20 × 10³ ×1.5 ÷ 400 × 10⁻⁶ × 200 × 10³ = 0.375 mm.
Answer:
B. $5.18
Explanation:
Cost of electricity per kWh = $0.09
Power consumption of refrigerator = 320W = 320/1000 = 0.32kW
In a month (30 days) the refrigerator works 1/4 × 30 days = 7.5 days = 7.5 × 24 hours = 180 hours
Energy consumed in 180 hours = 0.32kW × 180h = 57.6kWh
Cost of electricity of 57.6kWh energy consumed by the refrigerator = 57.6 × $0.09 = $5.18
Answer:
Polyethylene glycol (PEG) is a biocompatible, synthetic, hydrophilic polyether compound that has many applications, mostly in the medical industry, but also in the chemical and industrial sectors.
Explanation:
Answer:
Load sup[port by beam is 1040 lb/ft
Explanation:
Given data:
dead load of floor is 50 psf
live load of floor is 80 psf
load per meter can be determined as
Load/mt length = load intensity × effective width
total load = deal load + live load
= 50 + 80 = 130 psf
load /mt length = 130 × 8
= 1040 p/ft = 1.04 k /ft
hence load sup[port by beam is 1040 lb/ft
Answer:
KE= 687.21 BTU
Explanation:
Given that
Mass of car = 2500 lbm
We know that 1 lb=0.45 kg
So the mass of car m =1133.98 kg
Velocity of car= 80 mph
We know that 1 mph =0.44 m/s
So velocity of car = 35.76 m/s
As we know that kinetic energy (KE) is given as follows
Now by putting the values
KE=725.05 KJ
We know that 1 KJ = 0.94 BTU
So KE= 687.21 BTU
