Answer:
transparent Prism
Explanation:
The device shown is a prism. It is used to study the refraction of light according with its wavelength as it transverses from a medium (air for example) to another (either glass, fluorite, plastic), and vice versa.
For that reason is also used to separate white light into its spectral wavelength components.
Answer:
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Newton’s Second Law
Unbalanced forces
When the forces acting on an object do not balance, the resultant force will cause the object to accelerate in the direction of the resultant force.
In other words, a resultant force on a body will cause it to change its velocity. This simply means that unbalanced forces will cause:
acceleration
deceleration
change in direction
Explanation:
According to Newton's 2nd Law of Motion, if a constant force acts on an object, the object will accelerate.
According to Newton’s law of universal gravitation, the gravitational attraction between the Earth and an object causes a constant force to act on the object.
So, because of that force, Falling objects accelerate as they approach the ground. <em> (B)</em>
The answer to this question is the random assignment to control experimeter BIAS. This is the method or the only way in order to control for experimeter BIAS as well as confounding variables such as the severity condition, the attitudes, the age and etc., The researchers or the person who conduct subjects to groups by random assignment.
