The CUSTOMARY/AMERICAN (not metric) unit for force is 3). Pounds
The METRIC unit for area is 3). Square Meters
The CUSTOMARY/AMERICAN (not metric) unit for pressure is 4). PSI
How to explain the informationThe METRIC unit for pressure is Pascal
Pressure equals Force÷Area
If you put more stuff into a container, but the container stays the same size, the pressure will Increase
If the size of the container increases but the amount of stuff inside stays the same, the pressure decrease
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. A spring was at its resting position where it is attached to a wall at its left side and a block at its right side as shown below. The spring constant is k=25.0 N/m. The block is moved leftwards and the spring's right end is displaced from the position of 0.250m to .200m. All positions are measured from the origin OOO of the wall. What is the spring force exerted on the block
The force of spring will be "3.75 N". The further explanation is given below.
How to explain the force.It should be noted that a force is an influence that causes the motion of an object with mass to change its velocity, i.e., to accelerate. It can be a push or a pull, always with magnitude and direction, making it a vector quantity.
The given values are:
Spring constant, K = 75.0 N/m
x₁ = 0.200 m
x₂ = 0.150 m
x = 0.200 - 0.15
= 0.05
Force will be:
= 75 × 0.05
= 3.75N
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What is a center punch used for?
Removing a bolt that cannot be loosened with standard tools, because the bolt head is severely damage.
Making a small indention in a material, to help start a drill bit in the exact location the hole is to be drilled.
Removing a damaged cotter pin that cannot be gripped with a pliers.
4
A center punch is used for B. Making a small indention in a material, to help start a drill bit in the exact location the hole is to be drilled.
What is a Center Punch?Utilized in metalworking, a center punch is employed to make slight indentations or marks into materials, notably metallic objects. Its fundamental purpose is to act as a guide for drill bits aligning them accurately over where the holes are needed to be drilled.
However, one must keep in mind that this tool does not have solely one function; despite being able to disentangle damaged cotter pins, it isn't explicitly designed for such activity.
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