Answer:
The crust and outer part of the mantle.
Explanation:
The crust and outer part of the mantle are the two top-most layers of Earth. The lithosphere is comprised of these two. Here's a picture for an example.
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Answer:
government have the power to tax, make and enforce laws, charter banks, and borrow money.
Explanation:
If you need an explanation for each brack well
The legislative branch drafts proposed laws, confirms or rejects presidential nominations for heads of federal agencies, federal judges, and the Supreme Court, and has the authority to declare war.
The executive branch carries out and enforces laws. It includes the president, vice president, the Cabinet, executive departments, independent agencies, and other boards, commissions, and committees.
The judicial branch of the U.S. government is the system of federal courts and judges that interprets laws made by the legislative branch and enforced by the executive branch. At the top of the judicial branch are the nine justices of the Supreme Court, the highest court in the United States.
Answer:
Bart can travel 130 miles in 2.5 hours with this rate
Explanation:
Bart travels 52 miles per hour
For 2.5 hours first find for two hours and then for half hour. finally add this two and half hour to get for 2.5 hours.
2.5 hours=2 hours + half hour
2 hours= 1 hour × 2
= 52 miles × 2 = 104 miles
half hour= 1 hour ÷ 2
=52 miles ÷ 2 = 26 miles
2.5 hours = 104 miles + 26 miles
= 130 miles
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