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Physics, Chemistry and Biology: Post your doubts here!
- Thread starter semsemhosam
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q24) C, the angle is smaller than the critical angle so it is refracted but not totally refracted some is reflected.
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why not totally refracted ?
hmmm......ok....thanku soo much!
yh.....is it a rule?
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for the voltage to show on the voltmeter the voltmeter must be connected to both sides of the battery at r it is only connected to the positive because the resistor stops its connection to the negative so the reading is zero while at s it is connected to both terminals so it shows the voltage of the battery
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no problem glad i can help
I read it in my book so I memorized it.
No problem.
ok
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water in lake applies equal pressure everywhere. pressure is equally distributed on both the areas. only if the 2 areas are separated area will affect the pressure.
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Answer to this question is A as the force is not dependent by area which can also be found by looking at the formula F=ma
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that is what i thought but the answer is C
What ?
It's not even related to pressure 0.o
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Liquids transmits pressure equally in all directions
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http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_11.pdf
Q7 why is the answer C option B also has two forces acting in the same direction
Q11 no idea
Q31 why and how is the answer C
Q38 donot know at all
Q7 why is the answer C option B also has two forces acting in the same direction
Q11 no idea
Q31 why and how is the answer C
Q38 donot know at all
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Pressure = Force / Area
We know that the pressure is the same because the water will apply the same pressure, so there is no way the force is the same because the area's are different. Force and area are inversely proportional so with different area the force cannot be the same.
Yes, but this guy is saying F=ma. How is that related ?