A sloped line means the object is returning to the starting point. A Upward B Backwar C Missing D Downward

An object has a weight of 500 on earth what is the mass of this object

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?