Two gerbils run in place with a linear speed of 0.50 m/s on an exercise wheel that is shaped like a hoop. find the angular momentum of the system if each gerbil has a mass of 0.22 kg and the exercise wheel has a radius of 8 cm and a mass of 4.5 g.

Explanation:

Angular speed and linear speed is related to each other as

here we know that

now we have

Now we know that moment of inertia of the system is given as

Now angular momentum of the system is given as

coil wire, increase current, put iron inside the coil

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation: