Whose research showed that atoms consist of small positively charged nuclear centers and lots of empty space populated by electr
1 answer:
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Answer:1.33 times
Explanation:
Given
A takes 30 sec to complete each length
While B takes 40 sec to complete each length
Let L be the Length of Swimming pool Length
and and
be the length of A & B
Thus after 5 minutes A traveled
so A is 2.5L units ahead of B
A has traveled 1.33 times than B in 5 mins
Answer:
Explanation:
It is given that,
Speed of one quoll around a curve, v = 3.2 m/s (maximum speed)
Radius of the curve, r = 1.4 m
On the curve, the centripetal force is balanced by the frictional force such that the coefficient of frictional is given by :
So, the coefficient of static friction between the quoll's feet and the ground in this trial is 0.74. Hence, this is the required solution.
Answer:
72.98 km
Explanation:
Her displacement is simply the distance from her final position to her initial position.
Now, I've drawn and attached a triangle diagram to depict this her movement.
Point O is her initial starting point.
Point A is the first point she gets to after travelling north while point B is the final point after travelling north east.
From the triangle, the displacement will be the distance OB which is denoted by x and can be solved from cosine rule.
Thus;
x² = 62² + 26² - 2(62 × 26)cos 120
x² = 4520 + 806
x² = 5326
x = √5326
x = 72.98 km
