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Biology; Chemistry; Physics: Post your doubts here!

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the resultant force is the sum of all the forces. Now the weight 200N of the load is cancelled out by the tension in the wire, and the object is at rest, or as we say, in equilibrium. Thus the answer should be A
hmm got it thnx :)
 
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Both have the answer A.
In 6, the motorcyclist is moving in circular motion hence a centripetal force acts on the motor cycle, since the motor cycle is leaning towards the left, the centripetal force of circular motion is A.

In 7, the force at P produces a clockwise moment, so, applying the principal of moments,
2*P + 2*4 = 3*6
Hence,
P = 5 N.
 
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Both have the answer A.
In 6, the motorcyclist is moving in circular motion hence a centripetal force acts on the motor cycle, since the motor cycle is leaning towards the left, the centripetal force of circular motion is A.

In 7, the force at P produces a clockwise moment, so, applying the principal of moments,
2*P + 2*4 = 3*6
Hence,
P = 5 N.
whats a centripetal force???
 
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Some water in a beaker is heated. For the first 100s, the increase in temperature is 50 C. For the next 100s, the increase in temperature is 25 C. Why is there a difference in the increase in temperature? Anyone help please?
 
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Some water in a beaker is heated. For the first 100s, the increase in temperature is 50 C. For the next 100s, the increase in temperature is 25 C. Why is there a difference in the increase in temperature? Anyone help please?
Can you tell the whole question? Maybe it's because more heat is lost to the surroundings as temperature of water increases?
 
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Can you tell the whole question? Maybe it's because more heat is lost to the surroundings as temperature of water increases?
that is what i was thinking, but the experiment conditions were the same. I don't know the question number :(
 
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