Answer:
(i) 0.121 kg m²
(ii) 0.363 kg m²/s
(iii) 2 rad/s
Explanation:
(i) The moment of inertia of a rod about its end is:
I = 1/3 mr²
where m is the mass and r is the length.
Given m = 1.2 kg and r = 0.55 m:
I = 1/3 (1.2 kg) (0.55 m)²
I = 0.121 kg m²
(ii) Angular momentum is the moment of inertia times the angular velocity:
L = Iω
L = (0.121 kg m²) (3 rad/s)
L = 0.363 kg m²/s
(iii) This time, the moment of inertia of the putty is included.
I = 1/3 mr² + Mr²
I = 0.121 kg m² + (0.2 kg) (0.55 m)²
I = 0.1815 kg m²
Angular momentum is conserved:
L = Iω
0.363 kg m² = (0.1815 kg m²) ω
ω = 2 rad/s
2 because you would subtract 7 kilometers from 5 kilometers. And you would get 2 as your DP (displacement).
It always has changing velocity
Answer:
Rhinoceroses are odd-toed ungulates native to sub-Saharan Africa and southern Asia, though all five living species have hugely contracted in range and number due to the influence of humans. Despite their titanic, tank-like bulk, rhinos can be amazingly swift: The fastest may reach at least 50 kilometers per hour (31 mph).
Explanation:
sana makatulong
Answer:
D
Explanation:
If someone has to find the direction of the magnetic field lines, they would have to keep a compass near it, then it's north pole would show the direction.
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