Lina is late to science class and misses the very beginning of notes for the day. these are the notes that lina did copy down: –found within galaxies –have at least 1 star at the center –have objects orbiting the star –planets –moons –asteroids, comets, meteoroids, dwarf planets lina later copied the title of the notes from a friend. what title did lina most likely copy?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) determine the magnitude and direction of projectile velocity at t= 1.3s b) determine the magnitude and direction of projectile acceleration at t=1.3s

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Atomic nuclei of almost all elements consist of