Question

Help me guys pls i'll mark as brainliest​

Answer 1

Answer:

• A mop (such as a floor mop) is a mass or bundle of coarse strings or yarn, etc., or a piece of cloth, sponge or other absorbent material, attached to a pole or stick. It is used to soak up liquid, for cleaning floors and other surfaces, to mop up dust, or for other cleaning purposes.
• Knobs, Spindle and Latch
• The latch bolt is connected to the latch, which protrudes from the edge of the door and engages the door frame, preventing the door from opening. When either knob turns, it rotates the spindle, and the spindle retracts the latch and allows the door to open.

• A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force. It is one of the six classical simple machines. The most common form consists of a cylindrical shaft with helical grooves or ridges called threads around the outside.

• The basic components of a staircase are the tread, the horizontal surface we walk on; the riser, the vertical part between each tread; and the stringer, a structural support that holds the treads in place and provides stability.

• Nails are typically driven into the workpiece by a hammer or pneumatic nail gun. A nail holds materials together by friction in the axial direction and shear strength laterally. The point of the nail is also sometimes bent over or clinched after driving to prevent pulling out.

• A fixed pulley changes the direction of the force on a rope or belt that moves along its circumference. Mechanical advantage is gained by combining a fixed pulley with a movable pulley or another fixed pulley of a different diameter. Movable: A movable pulley has an axle in a movable block.

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