A force is applied to an object of mass 7.23kg such that the object moves according to the equation r 8.45 t .23m) x ­ .23 t .71 t)y . → = ( s 2 m 2 + 5 ˆ + ( 9 s 2 m 2 + 4 s m ˆ (a) What is the magnitude and direction of the object’s velocity at t=5s? (b) What angle is the force being applied to the cart?

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?