Chemistry
16.10.2021 12:40
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A box has a length of 4 cm, a width of 10 cm, and a height of 2 cm. The volume of
A box has a length of 4 cm, a width of 10 cm, and a height of 2 cm. The volume of the box is:
18 cm
18 cm3
80 cm
80 cm3
Show Answers
18 cm3
80 cm
80 cm3
cayleemiller02
4,9(27 marks)
80cm^3
Explanation:
Volume is calculated by L*W*H
So, 4*10*2= 80 cm^3
You would put cm cubed because volume unit is always cubes
Explanation:
Volume is calculated by L*W*H
So, 4*10*2= 80 cm^3
You would put cm cubed because volume unit is always cubes
meganldale15
4,5(80 marks)
Mark me brill plz
Explanation:
you have E= mv^2 /2
so v^2 = 2E/m m of neutron =1.67 10^(-27) kg
so v^2 = 2E/m E = kT = 1.38 10^-23*300 =4.14 10^(-21) J
v^2 = 2*4.14 10^(-21)/1.67 10^(-27) =4.96 10^6 m^2s^-2
v=2.227 10^3 m/s
And
lambda = 6.6210^(-34)/(2.22710*3)*1.67 10^(-27)
lambda=1.78 10^(-10)m =0.178 nm
please verify the calculus
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