a lead block drops its temperature by 5.90 degrees celsius when 427 J of heat are removed from it. what is the mass of the block
1 answer:
Answer:
577g
Explanation:
Given parameters:
Temperature change = 5.9°C
Amount of heat lost = 427J
Unknown:
Mass of the block = ?
Solution:
The heat capacity of a body is the amount of heat required to change the temperature of that body by 1°C.
H = m c Ф
H is the heat capacity
m is the mass of the block
c is the specific heat capacity
Ф is the temperature change
Specific heat capacity of lead is 0.126J/g°C
m = H / m Ф
m = = 577g
Mass of the lead block is 577g
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However, according to Newton's second law, the force is the product between the mass particle, m, and its acceleration, a:
which can be rewritten as
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Answer:
Explanation:
The frequency of a wave can be found using the following formula.
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Therefore:
Substitute the values into the formula.
Divide and note that the meters (m) will cancel each other out.
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