Acompressive force of 2.7×104n is exerted on the end of a 23-cm-long bone of cross-sectional area 3.8 cm2 . the elastic modulus for bone is 1.5×1010n/m2, and the compessive strength for bone is 1.7×108n/m2.

How does convection affect our atmosphere? our layers of earth? our oceans?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Select the three ways that the parallel-plate capacitor differs from a car battery.