A horizontal force of 0.80N is acquired to pull a 5kg block across a table top at a constant speed. With the block initially at rest, a20g bullet is assumed to be embedded in the rock

The slope of a velocity time graph over any interval of time gives the during that interval

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas