Determinar la fuerza que recibe un cuerpo de 145 kg, la cual le produce una aceleracion cuya magnitud es de 3.5 m/s2

Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine