Explanation:
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I believe the correct answer from the choices listed above is option B. Absolute threshold refers to the lowest intensity at which a person can detect stimuli. It <span>is the smallest level of energy required by an external stimulus to be detectable by the human senses. Hope this answers the question.</span>
Explanation:
12N by first law of newton is net force after colloision
Answer:
14 N
Explanation:
The tension in the second string is puling both the masses of 20 kg and 8 kg with acceleration of 0.5 m s⁻²
So tension in the second string = total mass x acceleration
= 28 x .5 = 14 N . Ans..
Answer:
85.1 m
Explanation:
The x and y coordinates are as follows
where d is distance travelled and is the slope of landing
The horizontal distance travelled is where t is time take to travel and v is the velocity
Making t the subject,
Also, the vertical distance
Therefore,
and making d the subject of the formula
Substituting v for 20 m/s, for and g for
d=85.06100825
Rounding off, d=85.1 m