May 23, 2015

Posts by zina

Total # Posts: 4

My son is struggling with ratios and Ploygons. The word problem is: Lydia wants to use a photocopier to increase the size of a small chart. The chart is 4 in. by 5 in. If she uses a scale factor of 5:11 will the chart fit on a 8 1/2 x 11 sheet of paper? Can some explain to me ...
January 28, 2013

This problem is derived from a video shown in class. A small cart is rolling down an inclined track and accelerating. It fires a ball perpendicular to the inclined track as it moves. The origin of the reference frame is located at the spot from where the ball is shot out. The ...
October 2, 2012

(a) One blade of a pair of scissors rotates clockwise in the xy plane. What is the direction of for the blade? into the xy plane out of the xy plane clockwise counterclockwise (b) What is the direction of if the magnitude of the angular velocity is increasing in time? into the...
October 2, 2012

A fair number cube is rolled twice. W aht is the probbability that the first roll will be even and the second roll will be odd number?
June 10, 2011

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