What are the SI units for distance and time?

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.