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If a ball of mass 5kg is dropped from rest, how far will it travel in the 3 seconds after it reaches 150m from it's original position? Write down the change in it's total energy after the 3 seconds. (ignoring air resistance)

Calculate the speed the ball is travelling at when it reaches 150m using v 2 = u 2 + 2ax. 2) Calculate the distance travelled in 3 seconds by an object with a speed of that found in 1) and an acceleration of...
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Answered by Dafydd O. • Physics tutor
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How could I include the metaphor of Atticus as a moral compass in my essay on To Kill a Mockingbird?

Atticus Finch could be viewed as a moral compass within To Kill A Mockingbird, as exemplified when he tells Scout " You never really understand a person until you consider things from his point of view ...
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The same mass of large, medium and small marbles where reacted separately with diluted HCl. This is and exothermic reaction. Will the rise in temperature for each reaction differ? If yes than why?

The smallest marbles will give the highest rise in temperature, than the medium and lastly the largest marbles will give the lovest rise in temperature. The smaller the beeds the larger the surface area that...
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Answered by Ines R. • Chemistry tutor
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Solve 3x – 5 < 16

The question is asking you to isolate, or find out what 'x' is in relation to the equation. Don't be confused by the less than sign '&lt;'. Treat it like an equals sign '='. 3x - 5 =16. So let's get the x by...
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Answered by Judith O. • Maths tutor
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Which component of the vaccine stimulates an immune defence? How do they prevent people from catching the disease e.g. mumps?

inactive pathogens white blood cells produce antibodies these antibodies can be then quickly released whrn the immune system comes into contact with the live pathogen and destoy it
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Answered by Ines R. • Biology tutor
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