If a force of 200 pounds is exerted over an area of 10-square inches, what’s the psi?
Answer(s): C
You can calculate psi as Pressure = Force/Area. So, in this problem, P = 200/10 = 20.
In the figure above, if Cat A moves toward the middle of the seesaw to get a better look at the mouse, Cat B will __________.
Answer(s): B
The Cat B will move towards the ground
If a ramp measures 6 feet in length and 3 feet in height, an object weighing 200 pounds requires how much effort to move using the ramp?
The formula to determine mechanical advantage of an incline plane is Length of Ramp ÷ Height of Ramp = Weight of Object ÷ Effort.Plugging in the numbers gives you:6/3 = 200/E6E = 600E = 100
A micrometer is used to measure _______________.
Micrometers measure very small but not microscopic objects.
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