False. What actually determines the properties of elements are the electrons, or aka valence electrons. They are used to bond, which determines its properties.
Answer:
there are two main type of root systems.
Answer: 45 A
Explanation:
Primary only protection 3-phase
I = 3 phase kVA / ( 1.723 * V)
I = 30000 / ( 1.732 * 480 ) = 36.085 A
Table 450.3(B)
Currents of 9A or more column
primary only protection = 125%
Max OCPD pri = 125% of I = 1.25 * 36.085 = 45.11 A
Table 450.3(B) Note 1 does not apply, use next smaller Table 240.6(A)
Next smaller = 45 A
There are many things you have to do but a quick run down would be keep notes, share their information, take many tests, always be safe when testing something, etc.
Answer:
a)5mm
b)3.3%
Explanation:
first note down the what's given
Area=
Mass of the runner=
=70kg
Fmax= 8 F (since tendon can stretch 8 times of runner's weight)
= 8 g=8 x 70 x 9.8=> 5488N
L=15cm=> 0.15m
a)
/AΔL
YAΔL=Fmax. L
ΔL=
ΔL=
=> 5mm
b) L=15cm= 150mm
Fractional change can be determined by,
(ΔL/L) *100
=
=3.33%
