For resistance we have R=ρ l/a
thus for conductance we have K=σ a/l
conductance,K=1/R
conductivity,σ =1/ρ
σ = .80 Ω-1 cm-1
l =9 cm
a = 3 cm²
K=.80 ×3/9
=0.26 Ω-1
Answer:
Explanation:
The electric field is given by
mass of electron, m = 9.1 x 10^-31 kg
Let a be the acceleration.
u = 2.10 m/s along X axis
time, t = 1.8 s
charge of electron, q = 1.6 x 10^-19 C
Force on electron, F = q E
a = F / m
Use second equation of motion
s = ut + 1/2 at²
s = (9.48, - 3.43) m
Answer:d.Radioactive decay
Explanation:The energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum
The final speed of the car is 2) 150 m/s
Explanation:
Since the motion of the car is a uniformly accelerated motion, we can solve the problem by using the following suvat equation:
where
v is the final velocity
u is the initial velocity
a is the acceleration
s is the distance covered
For the car in this problem, we have
u = 10 m/s
s = 7,467 m
Solving for v, we find the final velocity (and speed) of the car:
Learn more about accelerated motion:
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