What differences would rutherford have observed if he used aluminum foil instead of gold foil?

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.)

What is the measure of a change in an objects velocity?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m