So use half the surface area formula: SA=2πr^2 and plug in what you already know
since you don't know the radius yet, solve for it using the circumference
C=2πr
514.96=3.14(2)r
82=r
SA=2π(82)^2
SA=6.28(6724)
SA=42,226.72
so your answer is 42,226.72 yards squared
Answer:
The scenarios in which it is not permissible to wear options are;
Cadet Hastings is attending a ceremony honoring veterans at a political rally
Cadet Vonning volunteered to "get out the vote" at his high school by passing out information about polling places and times
Explanation:
Junior Reserve Officers' Training Corps (JROTC) Cadets are barred from putting on Army uniform in the following scenarios
(1) To promote commercial or political activities or interests
(2) When taking part in public demonstrations, public rallies, public marches, picket lines, broadcasted or while being interviewed in public, without authorization
(3) When in attendance of an event or meeting sponsored by or related to an extremist organization.
Answer:
The correct answer is (A).
Protective systems are methods of protecting workers from cave-ins of material that can fall or roll into an excavation, or from the collapse of nearby structures. As mentioned in earlier chapters, if an excavation is less than 5 feet deep, OSHA does not require a protective systems unless the competent person sees signs of a potential cave-in. (It is important to remember that a wall collapse in a trench four and 1/2 feet deep can still have serious results!) For trenches between 5 feet and 20 feet deep, shoring and sheeting, shielding, sloping and benching are all acceptable protective measures. It is up to the planners of the construction project and the competent person on site to determine which systems will work best. If an excavation is greater than 20 feet deep, a registered professional engineer must design the protective system.
Shoring systems are structures of timber, mechanical, or hydraulic systems that support the sides of an excavation and which are designed to prevent cave-ins.Sheeting is a type of shoring system that keeps the earth in position. It can be driven into the ground or work in conjunction with a shoring system. Driven sheeting is most frequently used for excavations open for long periods of time. Another type of sheeting, in which plates or shoring grade plywood (sometimes called Finland form) is used in conjunction with strutted systems such as hydraulic or timber shoring. These strutted systems are also referred to as active systems. The most frequently used strutted system involves aluminum hydraulic shoreswhich are lightweight, re-usable and installed and removed completely from above
Cross section<span> is a cut at an angle perpendicular to its axis so its interior </span>structure can be viewed<span>.
</span>A structural section describes a house's foundation assembly. This structural section refers to the section of the assembly that is horizontal and it shows the basic shell of the house.
