Answer:
The magnitude of the load can be computed because it is mandatory in order to produce the change in length ( elongation )
Explanation:
Yield strength = 275 Mpa
Tensile strength = 380 Mpa
elastic modulus = 103 GPa
The magnitude of the load can be computed because it is mandatory in order to produce the change in length ( elongation ) .
Given that the yield strength, elastic modulus and strain that is experienced by the test spectrum are given
strain = yield strength / elastic modulus
= 0.0027
Answer:
check the grammar and double check the work.Explanation:
sorry if its wrong :P
Answer:
Resistance of copper = 1.54 * 10^18 Ohms
Explanation:
<u>Given the following data;</u>
Length of copper, L = 3 kilometers to meters = 3 * 1000 = 3000 m
Resistivity, P = 1.7 * 10^8 Ωm
Diameter = 0.65 millimeters to meters = 0.65/1000 = 0.00065 m
Radius = 0.000325 m
To find the resistance;
Mathematically, resistance is given by the formula;

Where;
- P is the resistivity of the material.
- L is the length of the material.
- A is the cross-sectional area of the material.
First of all, we would find the cross-sectional area of copper.
Area of circle = πr²
Substituting into the equation, we have;
Area = 3.142 * (0.000325)²
Area = 3.142 * 1.05625 × 10^-7
Area = 3.32 × 10^-7 m²
Now, to find the resistance of copper;


<em>Resistance = 1.54 * 10^18 Ohms </em>
Answer:
C.Differential
Explanation:
While vehicle is moving in a curve track there there is a difference between the speed of inner and outer wheel of vehicle.The inner wheels move slowly while outer wheels move faster as compare two inner wheels.Because outer wheels have to cover more distance as compare to inner wheels in the sane time limit.
All above process is carried by using a differential .Differential is a speed changer unit and comes under the picture when vehicle is moving in a curve path.
<h3><u>The velocity of the car after 10 s is 78.95 km/hr</u></h3>
Explanation:
<h2>Given:</h2>
m = 1,250 kg
= 30 km/hr
F = 1,700 N
t = 10 s
<h2>Required:</h2>
Final velocity
<h2>Equation:</h2><h3>Force</h3>
F = ma
where: F - force
m - mass
a - acceleration
<h3>Acceleration</h3>
a = 
where: a - acceleration
- initial velocity
- final velocity
t - time elapsed
<h2>Solution:</h2><h3>Solve for acceleration using the formula for force</h3>
F = ma
Substitute the value of F and m
(1700 N) = (1250 kg)(a)
a = 
a = 1.36 m/s²
<h3>Solve for final velocity using the formula for acceleration</h3>
= 
= 
- Substitute the value of a,
and t
a = 


= 
= 
<h2>Final answer</h2><h3><u>The velocity of the car after 10 s is 78.95 km/hr</u></h3>