When a 57-gram piece of aluminum at 100oC is placed in water, it loses 735 calories of heat while cooling to 30oC. Calculate the
2 answers:
Answer:
specific heat capacity of aluminium is 0.184 Calroie/ gram-K.
Explanation:
As we know that heat transferred to a given material to change its temperature is given as
here we know
Q = heat given = 735 calorie
m = mass = 57 gram
initial temperature = 100 degree C
final temperature = 30 degree C
now by above formula we will have
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The formula for velocity vf = vi + at
First list your given information
2m/s Is your initial velocity (vi)
6m/s is you final velocity (vf)
2 seconds is your time (t)
Since you want the a for acceleration get a by itself
a = (vf-vi)/t
So a= (6-2)/2
a= 4/2
a=2
Now units
the units for acceleration are m/s
2m/s
First list your given information
2m/s Is your initial velocity (vi)
6m/s is you final velocity (vf)
2 seconds is your time (t)
Since you want the a for acceleration get a by itself
a = (vf-vi)/t
So a= (6-2)/2
a= 4/2
a=2
Now units
the units for acceleration are m/s
2m/s