Which two technologies use the same range of radio wave frequencies?
O television broadcasting and AM radio broadcasting
O cell phones and space communication
O CB radios and submarine communication --
O AM and FM radio broadcasting

Acylindrical specimen of a nickel alloy having an elastic modulus of 207 gpa (30 × 106psi) and an original diameter of 10.2 mm (0.40 in.) experiences only elastic deformation when a tensile load of 8900 n (2000 lbf) is applied. compute the maximum length of the specimen before deformation if the maximum allowable elongation is 0.25 mm (0.010 in.)

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

Which object is most likely represented by a dot?