The standard deviation of scores on a certain scale is 4. Thevariance would be
1. Does the strength of the gravitational force of the Earth pulling an object toward the ground depend on the object's mass? What evidence supports your answer?2. If the 6kg and 2kg carts were dropped from the same height at the same time, they would reach the ground together. How could you explain such a result in terms of their masses and the relative strengths of the gravitational forces pulling the carts downward?3. Draw force diagrams for both carts as they are falling side-by-side. Be sure to include both force and speed arrows of appropriate lengths.
This is a lab question : Assuming all Mg reacts and no H2 gasescapes, using balanced equation and moles of Mg reacted calculatethe number of moles of H2 produced. Mg + 2HCl---> H2 + MgCl2Mass of Mg (g) - 0.0398Concentration of HCL (M) - 5.819Vol of gas collected (mL) - 0.0408Moles H2 produced - ?
how many ways you can arrange a deck of cards
Is it necessary to compute the real range to construct a frequency distribution for:ungrouped data?grouped data?
A certain person had a brain that weighed 1.45 kg and contained4.12 × 1010 cells. Assuming that each cell was completely filledwith water (density = 1.00 g/mL), calculate the length in cm of oneside of such a cell if it were a cube.If the cells were spread out into a thin layer that was a singlecell thick, what would be the total surface area (in square meters)for one side of the cell layer?
