Answer:
I’m sorry I don’t understand this is there more steps?♀️
Explanation:
Answer:
Area under the strain-stress curve up to fracture gives the toughness of the material.
Explanation:
When a material is loaded by external forces stresses are developed in the material which produce strains in the material.
The amount of strain that a given stress produces depends upon the Modulus of Elasticity of the material.
Toughness of a material is defined as the energy absorbed by the material when it is loaded until fracture. Hence a more tough material absorbs more energy until fracture and thus is excellent choice in machine parts that are loaded by large loads such as springs of trains, suspension of cars.
The toughness of a material is quantitatively obtained by finding the area under it's stress-strain curve until fracture.
Answer:
Explanation:
So therefore new Resistance R¹ = R/49
Resistance of a wire
R = ¶ * L/A
Where ¶ = resistivity of wire
L = length of wire
A = cross sectional area of wire
So therefore if the wire is cut into 7 equal lengths and joined together to form one with new Resistance R¹
So new length L¹ = 1L/7
New A¹ = 7A
So therefore R¹ = ¶ (L/7) /(7A)
So R¹ = ¶*L/A(49)
Since R = ¶L/A
So therefore R¹ = R/49
Answer:
diameter is 14.83 mm
Explanation:
given data
height = 2 mm
to find out
internal diameter
solution
we consider here material is glass and liquid is water and angle is zero if no capillary rise
we apply here capillary rise formula that is
Capillary rise h = 2T / [ r×ρ×g ] ....................1
put here r is radius and ρ = 1000 kg/m³, T = 72.7 ×
N/m all value in equation 1
Capillary rise h = 2T / [ r×ρ×g ]
r = 2T / [ h×ρ×g ]
d/2 = 2T / [ h×ρ×g ]
d/2 = 2( 72.7 ×) / [ 2××1000×9.8 ]
d = 0.0148336 m
so diameter is 14.83 mm
The answer & explanation for this question is given in the attachment below.
