SOMEONE PLS PLS PLS HELP ME!!

give three examples of the types of materials that would be used when
building houses where their thermal conductivity would need to be
considered.

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

How do i solve this physics problem?