Using the information given in this description, explain whether the pulse will reflect as a trough or a crest under the followi
1 answer:
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Answer:
Explanation:
Given
mass of ethanol
mass of aluminium cup
both are at an initial temperature of
specific heat of ethanol
specific heat of aluminium
specific heat of ice
specific heat of water
Latent heat of fusion
suppose m is the mass of ice added
Heat loss by Al cup and ethanol after is reached
Heat gained by ice such that ice is melted and reached a temperature of
Comparing 1 and 2 we get
Thus 23.65 gm of ice is added
Answer:
Explanation:
Given that,
The mass of a bag of acorns, m = 8.5 kg
The force acting on the bag = 80 N
The force of friction = 32 N
We need to find the acceleration of the bag of acorns.
Net force acting on it is = 80 N - 32 N
= 48 N
Let a be the acceleration of the bag of acorns. So,
F = ma
So, the acceleration of the bag of acorns is .