1. If an ideal spring constant k is cut in half, and the two parts are combined in parallel, what is the effective spring constant keff for the arrangement

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book.required: distance away from earth or moon

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?