Answer:
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Explanation:
Using a free body diagram, it is proved that when the object starts to slide, the tangent of the angle of inclination is equal to the coefficient of static friction:
Hence, you can use that formula directly:
Rounding to the nearest degree that is 31º.
Answer:
2.771208%
Explanation:
= Change of volume
= Initial volume
= Change in temperature = (0.3-1050)
= Volumetric coefficient of thermal expansion =
Volumetric expansion of heat is given by
Finding percentage
The ratio of change of volume to initial volume is 2.771208%
Answer:
A. using a weak hydrochloric acid solution and whole pieces of chalk
Explanation:
The higher the concentration, and the greater the surface area, the faster the reaction.
Therefore, a weak acid with whole pieces of chalk is going to have the slowest rate.