You have an evacuated, iron spherical shell and want to know how thick the shell wall is. however, you cannot cut open the iron shell to measure the thickness of the wall. the ball just floats once completely submerged in water, and you measure the outer diameter to be 58.7 cm. if the density of iron is 7.87 g/cm3 , what is the thickness of the wall?

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

The softest and hardest minerals are: softest hardest