Answer:
Maybe when there is a fire there can be fire drones that can take it out. and it can also resuce people who are stuck there.
Explanation:
Answer:
I think you should make sure that the circuit is closed
Explanation:
The protection that must be provided when installing a cable in a notched stud or joist are:
- A steel "kick" plate
- bushings or grommets
<h3>What protection must be provided when installing a cable in a notched stud or joist?</h3>
If a nonmetallic cables is said to pass through holes or slots in metal framing members, the cable that need to ]be protected is through bushings or grommets and it is used to cover all metal edges and rightly fastened in the opening before one can install the cable.
Hence, The protection that must be provided when installing a cable in a notched stud or joist are:
- A steel "kick" plate
- bushings or grommets
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Answer:
The speed of transverse wave will be 28.2842 m/sec
Explanation:
We have given length of the card = 75 cm = 0.75 m
Tension on the card = 320 N
Mass of the card = 120 gram = 0.12 kg
So linear density ![=\frac{mass}{length}=\frac{0.12}{0.75}=0.4kg/m](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bmass%7D%7Blength%7D%3D%5Cfrac%7B0.12%7D%7B0.75%7D%3D0.4kg%2Fm)
We have to find the speed of the transverse wave
Speed is given by ![v=\sqrt{\frac{T}{linear\ density}}](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7BT%7D%7Blinear%5C%20density%7D%7D)
![v=\sqrt{\frac{320}{0.4}}=28.2842m/sec](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7B320%7D%7B0.4%7D%7D%3D28.2842m%2Fsec)
So the speed of transverse wave will be 28.2842 m/sec
Answer:
A) Upper bound modulus of elasticity; E = 165.6 GPa
B) Lower bound modulus of elasticity; E = 83.09 GPa
Explanation:
A) Formula for upper bound modulus is given as;
E = E_m(1 - V_f) + E_f•V_f
We are given;
E_m = 60 GPa
E_f = 380 GPa
V_f = 33% = 0.33
Thus,
E = 60(1 - 0.33) + 380(0.33)
E = (60 x 0.67) + 125.4
E = 165.6 GPa
B) Formula for lower bound modulus is given as;
E = 1/[(V_f/E_f) + ((1 – V_f)/E_m)]
E = 1/[(0.33/380) + ((1 – 0.33)/60)]
E = 1/(0.0008684 + 0.01116667)
E = 1/0.01203507
E = 83.09 GPa