The light right-angle boom which supports the 400 kg cylinder is supported by three cables and a ball and socket joint at o attached to the vertical x-y surface. determine the reactions at o and the cable tensions.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=

Select the three ways that the parallel-plate capacitor differs from a car battery.