Right now (late 2015), the difference is about 256 miles.
The geographic north pole is the point where the north end of the
Earth's rotation axis sticks out of the ground. As long as the Earth
continues to spin on the same 'pencil', the geographic poles don't move.
The magnetic north pole is the point on Earth that magnetic compasses
point to. The magnetic poles are the result of the flowing, shifting liquid
iron in the Earth's core, and they move. The magnetic north pole is presently
somewhere in the Canadian Arctic territory, about 256 miles south of the
geographic pole, and moving westward towards Russia at about 35 miles a year.
change in velocity is 3m/s,the force exterted by bat on ball is 4.8N and the acceleration is 30m/s².
<h3>Give some difference between velocity and speed.</h3>
1) Speed is scalar quantity but velocity is vector quantity.
2) Speed is distance followed by an individual with respect to time and velocity is displacement with respect to time .
1) final velocity- intial velocity
25-22= 3m/s
2) The force is
F= ma
. 0.16×30= 4.8N
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Explanation:
a) The equivalent resistance for resistors in series is the sum:
R = R₁ + R₂ + R₃
R = 10 Ω + 20 Ω + 30 Ω
R = 60 Ω
b) The resistors are in series, so they have the same current.
I = V/R
I = 12 V / 60 Ω
I = 0.2 A
c) The voltage drop can be found with Ohm's law:
V₁ = I R₁ = (0.2 A) (10 Ω) = 2 V
V₂ = I R₂ = (0.2 A) (20 Ω) = 4 V
V₃ = I R₃ = (0.2 A) (30 Ω) = 6 V
d) The power lost in each resistor is current times voltage drop:
P₁ = I V₁ = (0.2 A) (2 V) = 0.4 W
P₂ = I V₂ = (0.2 A) (4 V) = 0.8 W
P₃ = I V₃ = (0.2 A) (6 V) = 1.2 W
The answer is A. Cones, as rods are not sensitive to color. :)