No
Motorhomes are often bought and sold at brick and mortar dealerships and are not typically done online. However, there are sometimes listings on craigslist, but those are usually sparse.
Yes, work is done when you lift a brick against gravity because you are exerting a force over a distance in the direction of the force of gravity. Work is defined as force multiplied by distance in the direction of the force, so lifting the brick requires work to be done.
1 year-not done yet brick brick brick
Murphy beds are a style of bed, and there are many companies that make them. From what I can tell, there are few brick-and-mortar stores. Most business is done online. That being said, there are several websites, since each company would have its own.
University of Phoenix offers an online medical degree, so does Kaplan and The College network. However, some of these places may require an internship or other coursework done in brick and mortar buildings.
There are a variety of options for one to book flights to holiday destinations. This can be done from a brick and mortar travel agency or on many online travel sites. Some sites where one can book these holidays are Expedia, Kayak and Hotwire.
The brick wall is crumbling due to weathering and age, which weakens the structure over time. To prevent further deterioration, the wall can be repaired by replacing damaged bricks, repointing mortar joints, and applying a protective sealant to shield it from the elements. Regular maintenance and inspections can also help identify and address issues before they worsen.
The saber saw can be adapted to do just about anycutting job. I have used it for cutting steel, Timber, ceramics, brick, mortar, branches etc. There are a large variety of different blades available for reciprocal saws at most hardware and tool stores.
In the construction business, brick siding refers to the faux siding placed on houses to add a more decorative look. This can be done with real brick or veneer coverings.
No work is done on the brick wall by the force of 500N because the wall does not move in the direction of the force. Work is only done when a force causes a displacement in the direction of the force.
Salt may need to separated from sand so the sand can be used to make mortar for construction applications (like a brick wall). Salt in sand will "kill" the strength and resilience of brick or block mortar, and no one with any sense will use sand with salt in it to mix up cement. Bad idea. There may be other reasons for separating salt from sand. And it is probably best done by "washing out" that salt. Salt will, as you probably realize, dissolve in water and sand will not. A continuous wash with fresh water will remove most all the salt hiding in the sand.
The mechanical work done in holding a brick 1 meter above the floor is zero, as work is defined as the force applied over a distance. While you exert an upward force equal to the weight of the brick to keep it suspended, there is no displacement in the direction of the force since you are not moving the brick. Thus, even though you are applying force, the lack of movement means no mechanical work is done.