Which are dwarf planets? Choose the correct answer. Titan, Enceladus, Iapetus, Dione, Mimas

Ceres, Pluto, Haumea, Makemake, Eris

Europa, Io, Ganymede, Callisto, Amalthea

Miranda, Titania, Oberon, Setebos, Portia

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Which accurately compares concave and convex lenses?

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?