By Kirchoff's law in left side loop
similarly kirchoff's law in right side loop
also by junction law we know that
now by plug in all values we have
So by solving above equations we have
A physics experiment is done in which three masses are used to balance a bar on a fulcrum. Two masses (21 kg and 12 kg) are plac
1 answer:
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Answer:
1) Weight on Mercury
Explanation:
do the same to the rest and use your calculator to find the weight in N.
Answer:
The force exerted by the legs on the person's upper body 32.106 N.
Given:
Mass = 69 kg
Acceleration = 1.45
To find:
Force exerted by legs on the person's upper body = ?
Formula used:
Force = mass × acceleration
Solution:
Mass of legs = mass of body
Mass of legs = 22.08 kg
According to Newton's second law of motion,
Force = mass × acceleration
Force = 22.08 × 1.45
Force = 32.106 N
The force exerted by the legs on the person's upper body 32.106 N.
Answer:
The objects have the same altitude at the same time in the heights 22.4m and 36.6m.
Explanation:
The equation of the position of the hot air balloon with respect to time is:
And the equation of the position of the pellet with respect to time is:
As the altitude of the two objects must be equal, we can match these equations, so:
Solving this equation for t, we obtain:
Now, using the equation of the position of the balloon (we can use the other either, but the first one is easier) we can obtain the height of the places where the two objects have the same altitude at the same time:
In words, the hot air balloon and the pellet have the same altitude at the same time in the heights 22.4m and 36.6m.
When a parallel beam of light passes through a convex lens, the rays become farther from one another when the come out. This process of rays is called ''to diverge''. The concave lens makes rays of light diverge, so it is called diverging lens.
