Answer:
The correct answer is B
Explanation:
On a multiple lane roadway that has a speed limit of 50 mph (that is 80.5kmh) or greater, a driver is legally required to signal his or her intention to change lanes at least 300 feet in advance of making the change.
This rule like other traffic rules is design to ensure the safety of other road users by preventing accidents which may stem from reckless driving.
Cheers!
Answer:
<em>a) 42 mm</em>
<em>b) 144.4 MPa</em>
<em></em>
Explanation:
Load P = 200 kN = 200 x 10^3 N
Torque T = 1.5 kN-m = 1.5 x 10^3 N-m
maximum shear stress τ = 100 Mpa = 100 x 10^6 Pa
diameter of shaft d = ?
From T = τ * 
* 
substituting values, we have
1.5 x 10^3 = 100 x 10^6 x 
x
= 7.638 x 10^-5
d = ![\sqrt[3]{7.638 * 10^-5}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B7.638%20%2A%2010%5E-5%7D)
= 0.042 m = <em>42 mm</em>
b) Normal stress = P/A
where A is the area
A = 
= 
= 1.385 x 10^-3
Normal stress = (200 x 10^3)/(1.385 x 10^-3) = 144.4 x 10^6 Pa = <em>144.4 MPa</em>
Answer:
what are the answers expect what?
Explanation:
Polycarbonate is commonly used in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally indicate the use of glass, but require much higher impact-resistance. Polycarbonate lenses also protect the eye from UV light.
<h3>
Option A</h3>
In a Series circuit with two identical loads, the voltage across each load will be: the same
<h3><u>
Explanation:</u></h3>
A series circuit is one with total the loads in a row. There is barely ONE path for electricity to pass. If this circuit was a series of flashbulbs, and one left out, the left bulbs would switch off. T
he current in a series circuit is universally the same and the voltage over the circuit is the amount of the unique voltage drops over each component. The voltage referred to as a series circuit is equivalent to the amount of the individual voltage drops.
