Answer:
F = 0.0545 N
Explanation:
Let's use Newton's second law for rotational movement
τ = I α
The moment of inertia for a bar supported by some ends is
I = 1/3 m L²
Torque is
τ = F L
Let's replace
F L = 1/3 m L² α
F = 1/3 m L α
Let's reduce angular acceleration to SI units
Alf = 26º / s² (π rad / 180º) = 0.454 rad / s²
Let's calculate
F = 1/3 0.5 0.72 0.454
F = 0.0545 N
The same voltage will appear across all resistors in parallel.
It’s my guess but from my opinion i would say yes
Based on the calculations, the speed required for this satellite to stay in orbit is equal to 1.8 × 10³ m/s.
<u>Given the following data:</u>
- Gravitational constant = 6.67 × 10⁻¹¹ m/kg²
- Mass of Moon = 7.36 × 10²² kg
- Distance, r = 4.2 × 10⁶ m.
<h3>How to determine the speed of this satellite?</h3>
In order to determine the speed of this satellite to stay in orbit, the centripetal force acting on it must be sufficient to change its direction.
This ultimately implies that, the centripetal force must be equal to the gravitational force as shown below:
Fc = Fg
mv²/r = GmM/r²
<u>Where:</u>
- m is the mass of the satellite.
Making v the subject of formula, we have;
v = √(GM/r)
Substituting the given parameters into the formula, we have;
v = √(6.67 × 10⁻¹¹ × 7.36 × 10²²/4.2 × 10⁶)
v = √(1,168,838.095)
v = 1,081.13 m/s.
Speed, v = 1.8 × 10³ m/s.
Read more on speed here: brainly.com/question/20162935
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Onduction in gas is slower than in liquids and solids because the particles in a gas collide less often. Conduction in metals is faster because the electrons are free to move about
