What is force is needed to accelerate a 55 kg shopping cart 2.0 m/s2

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out