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Newton's first law of motion states 'an object will only experience acceleration if a resultant force is acting on it'. This means that only unbalanced forces will cause a change in the speed of the objec...
distance = velocity*time= 180 km
Ultrasound is any frequency above that of human hearing - around 20 kilohertz. Ultrasound imaging works by emitting a known intensity of ultrasound at a speci...
Different exam boards may want a different format of answer, so before beginning this question, it would be worth thinking how other six mark questions are marked in other papers. Edexcel wan...
(Draw hydraulic jack diagram using Pen tool) Firstly, we need the quation for pressure. Pressure is measured in Nm^2 which tells us that P=F/A. Where P is the pressure, F is the force in Newtons and A is ...
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