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Answer: 20ms-1The gravitational potential energy before the ball is dropped is equal to mgh. This gives the ball a maximum gravitational potential energy of 5.0kg * 9.8N/kg 20m which is equ...
13cm. Using Pythagoras theorem a^2 +b^2 =c^2 we substitute our two known lengths into the equation to get 5^2 + 12^2=c^2.So now we have c^2= 25+144. So c^2 =169. So c=√169 = 13. Don't forget the un...
Underline key words, ie. if the question is 'What is the significance of women in Of Mice and Men?' you would underline 'what', 'significance', 'women' and 'Of Mice and Men'. This allows you to k...
Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane.
Step 1, find the gradient of line A: gradient = change in y/change in x = (y1 - y2) / (x1 - x2) = 9-3/4-2 = 6/2 = 3Step 2, find the gradient of line B: as the two lines are perpendicular, the gradient of ...
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