Achild sits 6 m away from the center of the merry go round. the centripetal acceleration acting on the child’ is 3.6 m/s^2. what is the tangential velocity of the child?
a 4.65 m/s
b 21.6
c 0.6 m/s
d 1.67 m/s

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm