D: 2400 kg/m³
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A micrometer is used to measure the diameter of a uniform wire. What is done to obtain an accurate answer?
The diagram shows a clinical thermometer. How does the diagram show that this is a sensitive thermometer?
A micrometer is used to measure the diameter of a uniform wire. What is done to obtain an accurate answer?
The graph shows how the pressure of a fixed mass of gas varies with volume at constant temperature. What is the volum…
A rocket of total mass M is travelling at a speed v. The engine of the rocket is fired and fuel is used up. The mass …
A builder lifts eight slabs from the ground on to the back of a lorry 1.5 m high. The total time taken is 48 s and ea…