PLEASE HELP ASAP! THANKS! Why is it a rare occasion to see a solar eclipse from your home?
1 answer:
You might be interested in
Answer:
Explanation:
Given
Width of river=200 m
Speed of river=2 m/s
Speed of Boat relative to river=8 m/s
Boat leaves the bank west of north
Therefore velocity of boat w.r.t ground
Magnitude of boat speed
For direction
w.r.t to west
to cross the river its north component will help so
time taken
Answer:
R = 0.14 Ω
Explanation:
The resistance of a metal is given by the relation
R =
where ρ the resistivity is 5.6 10-8 Ω m, they also give the length and the cross section (area)
Let's reduce the magnitudes to the SI system
L = 200cm (1m / 100cm) = 2.00m
A = 8.0 10⁻⁷ m²
let's calculate
R = 5.6 10⁻⁸
R = 1.4 10⁻¹ Ω
R = 0.14 Ω