# Posts by Jud

Total # Posts: 4

**physics**

Ok. Thanks! Now I can have my starting point. Thank you.

**physics**

a 1.50 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.21 m/s, and at point B it has slowed to 1.25m/s. 1.) How much work was done on the book between A and B? 2.) If -0.750 J of work is done on the book from B to C, how fast is it moving at ...

**Data Management**

Two cards are drawn from a standard 52 card deck. a) what is the probability that both cards drawn are black? b) what is the probability that one card is red and the other is black? c) what is the probability that a two face cards are drawn? d)what is the probability that two ...

**geography**

I am trying to find this: how do we find the country's rank population such as upper class, lower class, and middle class?