Answer:
The external stimulus of fear.
Explanation:
The zebras would most likely be scared of the lions, due to the fact that the lions want to eat the zebra. Thus leading to the zebra's running away from the lions.
Answer:
τ ≈ 0.90 N•m
F =
Explanation:
I = ½mR² = ½(10)0.5² = 1.25 kg•m²
α = ω²/2θ = 3.0² / 4π = 0.716... rad/s²
τ = Iα = 1.25(0.716) = 0.8952... ≈ 0.90 N•m
τ = FR
Now we have the unanswered question of reference frame.
80° from what?
If it's 80° from the radial
F = τ/Rsinθ = 0.90/0.5sin80 = 1.818... ≈ 1.8 N
If it's If it's 80° from the tangential
F = τ/Rcosθ = 0.90/0.5cos80 = 10.311... ≈ 10 N
There are an infinite number of other potential solutions
Answer:
Explanation:
To calculate the force we need to use this equation
where L is the total length of the wire
So in this case the small element of current is
Because x is the direction of the current flow.
As is said in the problem B is such that
so to use the equation above we first calculate the following cross product:
so the force:
So here we use the fact that B=0 in any point of the x axis that is not , that means that we only need to do the integration between a very short distant behind the point and a very short distant after that point, meaning:
so is the same as evaluating at
that is:
Answer:
Yes it is true saying that 2nd applience use more power than first one
FORMULA:
V = IR, where V = P.D ; I = Current; R = Resistance.
ANSWER:
Total Resistance(Req) in parallel circuit,
1/R = 1/R1 + 1/R2 + 1/R3
- 1/R = 1/40 + 1/20 + 1/10
- 1/R = 2 + 4 + 8/80
- 1/R = 14/80
- R = 80/14Ω
Now, I = V/R
- I = 60/80 × 14
- I = 21/2
- I = 10.5ampere.