Most stars spend the majority of their lifetimes as which type of star?
a. giant
b. dwarf
c. protostar
d. main sequence user: a star's spectral class is related to which of these characteristics? select all that apply.
a. mass
b. radius
c. chemistry
d. temperature
e. distance to the center of its galaxy

Aflower pot weighing 3 newtons is sitting on a windowsill 30 meters from the ground is the energy of the flower pot potential or kinetic? how many joules is this

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.