Answer:
Explanation:
Let Torque due to friction be
F
Net torque
= 46 - F
Angular impulse = change in angular momentum
=( 46 - F ) x 17 = I X 580
When external torque is removed , only friction creates torque reducing its speed to zero in 120 s so
Angular impulse = change in angular momentum
F x 120 = I X 580
( 46 - F ) x 17 = F x 120
137 F = 46 x 17
F = 5.7 Nm
b )
Putting this value in first equation
5.7 x 120 = I x 580
I = 1.18 kg m²
Conductors, type SIS, for switchboard wiring, have a maximum operating temperature of: 194 degree Fahrenheit.
<u>Explanation:</u>
A Panelboard or Switchboard wire is known as SIS.This type of SIS, have tin coating and it is manufactured with a copper conductor insulation. It is helpful for facilitating solder and also it will be easy to fix them in tighter spaces because for their flexible nature.
As they are insulated with XLPE they can be used at a voltage operating at 600 V and can be used at a temperature of 194 degree Fahrenheit or 90 degree Celsius. of The XLPE(Cross-Linked Polyethylene) insulation is rated for use at 90°C in either wet or dry locations at an operating voltage of 600 V. They can be used for distribution, panel and switch board wiring.
The correct answer is the Golden Gate Bridge
Answer:
15,569,653.3 Joules(J)
Explanation:
The equation used to find Kinetic Energy (KE) is
KE = 
m 
You have been given
m = 450kg
v = 947km/h
KE = ???
Firstly, we need to convert the km/h into m/s as this is the unit used in the KE equation
This can be done by dividing by 3.6
947km/h = 263.056m/s
Substitute you values into the equation
KE = m
KE = * 450 * 
KE = 15,569,653.3 Joules(J)
Round your answer as appropriate
Answer:
Length of the arc of this sector, l = 14 cm
Explanation:
It is given that, the perimeter of a sector of a circle is the sum of the two sides formed by the radii and the length of the included arc.
Perimeter of sector, P = 28 cm
Area of sector, 
According to figure,
2r + l = 28 ............(1)
Area of sector, 
Where, 
is in radian and 
Since, 
Put the value of r in equation (1) so,
On solving above equation for l we get, l = 14 cm. So, the length of the arc of this sector is 14 cm. Hence, this is the required solution.
