solution:
The formula to calculate Avagadro’s number(N) from density the following formula is used
N=Avagadro number
M=molar mass of copper
N=number of copper atoms occupying one unit cell of copper
Delta=Density of copper
A= length of edge of unit cell of copper.
Hence from the given option (a),(b),(c) are required. Only atomic number of copper is not needed.
Hence the correct answer is atomic number of copper
Pounds of force pressing on a rectangle : F = 173.86 lbs
<h3>Further explanation</h3>
Given
P at sea level = 14.7 lbs/in²
Area of rectangle : A = 76.3 cm²
Required
Pounds of force
Solution
P = F/A
F= P.A
Conversion :
1 cm² = 0.155 in²
76.3 cm² = 11.827 in²
Input the value :
F = 14.7 lbs/in² x 11.827 in²
F = 173.86 lbs
Answer:
Newton's first law is a object at rest stays at rest unless acted by and outside force
Explanation:
say there is a ball sitting still it is at rest well say a kid comes over and kicks the ball the kid is the outside force that puts the ball in motion so the ball goes from sitting still to moving by the outside force also known as the kid
Answer:
61.994 g
Explanation:
first of all the result is not balanced but here is tje answer anyways
To find the weight we have to add their molar mass
12.011+(15.99×2)+(1.002×2) +15.999=61.994
Phase transition is when a substance changes from a solid, liquid, or gas state to a different state. Every element and substance can transition from one phase to another at a specific combination of temperature and pressure.