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irinina [24]
3 years ago
7

An average skater averages 11 m/s over the first 5 seconds of a race. find the average speed required over next 10 seconds to av

erage 12 m/s overall. ​
Physics
1 answer:
Gelneren [198K]3 years ago
6 0

Answer:

usa

Explanation:

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Consider two waves X and Y traveling in the same medium. The two carry the same amount of energy per unit time, but X has one-se
RideAnS [48]

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Calculate the pressure exerted on the heel of a boy’s foot if the boy weighs 80 N and he lands on one heel,which has an area of
cricket20 [7]

Pressure at a given surface is given as ratio of normal force and area

so here force due to heel of the shoes is given as 80 N

and the area of the heel is given as 16 cm^2

so we can say

P = \frac{F}{A}

here we have

F = 80 N

A = 16 cm^2 = 16 * 10^{-4} m^2

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