A 1.5m wire carries a 7 A current when a potential difference of 87 V is applied. What is the resistance of the wire?
2 answers:
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Answer:
<h2>Work done by the gas is given as</h2><h2>Explanation:
As we know that the process is isothermal so here work done is given as
here we know that
now we have
so we have
Answer:
Explanation:
So:
(
5
⋅
1
)
+
(
1
⋅
−
4
)
=
(
5
+
1
)
v
5
−
4
=
6
v
v
=
1
6
=
0.17
m
s
The distance covered is 54.0 m
Explanation:
Since the motion of the car is a uniformly accelerated motion, we can use the following suvat equation:
where
u is the initial velocity
t is the time
a is the acceleration
s is the distance covered
For the car in this problem, we have
u = 0 (it starts from rest)
is the acceleration
t = 3.9 s is the time
Substituting, we find s:
Learn more about accelerated motion:
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