When its going from one medium to another.
Answer:
Explanation:
a = Δv/Δt = (v₁ - v₀) / (t₁ - t₀)
A a = (10 - 0) / (5 - 0) = 2 m/s²
B a = (10 - 10) / (15 - 5) = 0 m/s²
C a = (5 - 10) / (25 - 15) = - 0.5 m/s²
A camera is a motor.
A drill is a motor.
A hand-squeeze flashlight is a generator.
Hope this helped :)
Answer:
b
Explanation:
Bar magnets have two magnetic poles
We can see it as two movements: one on the north-south axis and one on the west-east axis.
On the north-south Axis, the hiker went 8 km north and 4 km south, so in total the hiker went 4 km north (we can subtract one for the other and the direction remains that which was bigger)
On the west-easth Axis, the hiker went 6 km east and 6 km west, so in total the hiker didn't move on this axis! or, he/she moved but then "came back"
So in total, the hiker only moved4 km north - answer B.
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