Answer:
5
Explanation:
3/4of marble is blue
i.e,3/4 of 20
i.e, 15 are blue
then number of NOT blue is 20-15=5!
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Answer:
Prevent contact: The safeguard must prevent hands, arms, and any other part of a worker's body from making contact with dangerous moving parts. A good safeguarding system eliminates the possibility of the operator or another worker placing parts of their bodies near hazardous moving parts.
Solution :
Given :
d = diameter of the wire of the spring = 0.074 in
= 0.188 cm
R = mean radius of coil
= 1.08 cm
G = modulus of rigidity of carbon steel wire =
L = length of wire of spring = 2 inch
∴ L = 5.08 cm
k = spring constant
k = axial load/ axial deflection
..................(1)
This is taken from the Torsion equation,
∴ From equation (1)
So the axial compression is = 1.57 cm
Axial load required W= k x δ
= 11334 x 1.57
= 177.95 N
Answer:
Check the explanation
Explanation:
beam span = 25 ft
dead load = 0.6 kip/ft
live load = 2.1 kip/ft
factored load = 1.2*0.6 +1.6*2.1=4.08 kip/ft
moment in beam = 4.08*252/8=318.75 kip-ft = 3825 kip-in
design strength =0.9* 50 = 45 ksi
plastic section modulus required = 3825/45=85 in3
Moment in beam in ASD = (0.6+2.1)*252/8 = 210.9 kip-ft
lighest W section from LRFD = W21x44
lightest W section from ASD = W21x44
Answer:
The answer is 11.7 ft
Explanation:
You can use the combined gas law from Boyle's law, Charles's law, and Gay-Lussac's Law. Only because hydrogen behaves like an ideal gas for this conditions.
where the subscripts denote the pressure "p", volume "V" and the temperature "T" (in Kelvin) at two different times. Let's consider as the balloom at 150,000 ft so
and .
Then, is the moment when the balloon is on the ground.
and .
From the first equation,
, then
and the radius would be
.