Carrot carrot carrot carrot
Answer : The energy gained by copper can be calculated by using the below formula :
Energy = Mass X Specific heat X Temperature change.
Solution : Given, Mass of Cu = 48.7
Specific heat = 0.385
Temperature change = 10 to x = (x-10)
On substituting the values we get,
Energy = 48.7 X 0.385 X (x-10) = 18.7495 X (x-10) KJ
Solid state of matter
- the atoms are tightly packed in orderly form, they slightly vibrate but are stuck in a fixed position. Solids cannot be compressed and they maintain their shape
Answer:James Watson and Francis Crick
Explanation:
18 g of silicon-32 will be present in 800 years.
A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and it's given by
where,
quantity of the substance remaining
the initial quantity of the substance
time elapsed
the half-life of the substance
From the given information we know:
The initial quantity of silicon-32 is 40 g.
The time elapsed is 800 years.
The half-life of silicone-32 is 710 years.
So, using the calculation above, we can determine how much silicon-32 is left.
Therefore,18 g of silicon-32 will be present in 800 years.
Learn more about half-life here:
brainly.com/question/25750315
#SPJ4