Question

#52 The Earth is I AU away from the Sun, and takes 1 year to complete an orbit. The distanie from the Sun is 120 Au use Kepless Law to estimate the orbital period (in years). U - Donald is swinging a(0.350 kg rock in I a horizontal circle with a radius of 1.2m. The tension is 550N. What is the tangential Velouty of the rock? I How much work will it take to stop a abd small runaway train? Mass of train is 150,000 kg speed is 27m/s, Report back in mega-joules. A 5kg bomb initially at rest exploded into two fragments. A 1.3kg fragments moves at 315 m/s What was the total Kinetic energy of the boab. Raport the total Kinetic as (kg A 0.027 kg bullet is of a gun to 480 m/s average force was exerted hot expending gases. accelerated in a time on the along the barrel of 2.9 ms. What bullet by the