Answer:
2500m
Explanation:
given,
initial velocity(u) = 5m/s
final velocity (v) = 0 m/s ( as he/she stopped riding after 1000 secs)
time = 1000 secs
distance(s)=?
now,
s=( u+v ) ×t /2
=(5+0)×1000/2
=2500 m
hence, he /she travels 2500m far
Answer:
PLS OPEN THE LINK FOR THE ANSWER
Explanation:
Explanation:
A crystalline solid that conducts current under certain conditions
As the distance increases, their magnetic force decreases....
Answer:
Explanation:
Original diameter = 5mm
d= 0.005m. r=0.0025m
True stress (σ) = 290MPa
Coefficient of annealing copper (n)=0.5
True stress is given as force/area
σ=F/A
Ao=πr^2
Ao=1.963×10^-5m2
F=σ ×A
F=290×10^6 ×π×(0.0025)^2
F= 5694.13N
Given that
σ=Kε^n
290=Kε^0.5
n=ε=0.5 at necking
Therefore
290=K×0.5^0.5
K=410.12MPa
ε=In(Ao/A)
0.5=In(π×0.0025^2/A)
exp(0.5)=1.96×10^-5/A
A=1.96×10^-5/exp(0.5)
A= 1.2×10^-5m2
This is the new area
Then the Ultimate Tensile Stress
σ=F/A
σ=5694.13/1.2×10^-5
σ=4.75×10^8Pa
σ=475MPa
Therefore,
The ultimate tensile stress is 475MPa.
The maximum tension is
Fo/Ao=F/A
F=(Fo/Ao) ×A
F=(5694.13/1963×10^-5)×1.2×10^-5
F= 3479.99
F=3480N.