Answer:
5
Explanation:
Given parameters:
Width of wedge = 2inches
Length of sloped side = 10inches
Unknown:
Mechanical advantage = ?
Solution:
A wedge is a simple machine used to split devices into two. It is a simple chisel.
The input force is through the width and the output wok done is through the length of the slope.
Mechanical advantage is the ratio of the output force to the input force;
M. A = 
therefore;
M.A = 
= 5
Mechanical advantage has no unit.
Answer:
c. 29 J
Explanation:
Step 1: Given data
- Specific heat capacity of Pb (c): 0.13 J/g.K (= 0.13 J/g.°C)
- Initial temperature: 22 °C
Step 2: Calculate the temperature change
ΔT = 37 °C - 22 °C = 15 °C
Step 3: Calculate the heat (Q) required to raise the temperature of the lead piece
We will use the following expression.
Q = c × m × ΔT
Q = 0.13 J/g.°C × 15 g × 15 °C = 29 J
Answer:
The valence electrons in the metal atom in the lattice structure can delocalize and move freely. The electrons are "loosely" connected with their parent atom in the metallic bond because most metals have excess electrons in their outer orbitals above the stable configuration.
Explanation:
Says google
Answer:
Ahhh! I had the same question
Explanation:
Answer:
Covalent
Explanation:
A molecule of C₂H₅OH has C-C, C-H, C-O, and O-H bonds.
A bond between A and B will be ionic if the difference between their electronegativities (ΔEN) is greater than 1.6.
No bond has a large enough ΔEN to be ionic.
C₂H₅OH is a covalent molecule.
