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An internet shopping company is planning to use drones to deliver packages.During a test the drone is hovering at a constant height above the ground.The mass of the drone is 5·50 kg. The mass of the package is 1·25 kg. See questions below

a) Determine the upward force produced by the droneWe can simplify the problem by drawing a free body diagram. This allows us to analyse the forces involved. We are told the drone is stationary, meaning t...

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Answered by Joe R. Physics tutor
3544 Views

How do I work out the exact value of a number which is expressed as an indice, for example 81^-1/4

Firstly, recall the indice rules which are applicable to the question, for example in this question we can use the rules:(x^a)^b = x^abx^-1 = 1/xx^1/2 = square root xSecondly, apply these rules to break d...

CH
Answered by Cameron H. Maths tutor
3324 Views

State and explain how the attraction between nuclei and outermost electrons varies across group 3 (2 marks)

Attraction between the nucleus and the outer electrons increases across a group because the proton number increases and the atomic radius decreases due to increased nuclear charge.Across a group shielding...

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Answered by Amy D. Chemistry tutor
10871 Views

To what extent was the legacy Treaty of Versailles the main cause of the Second World War?

Thesis - The legacy and impact of the Treaty of Versailles was the main cause of the WWII, since it set the precedent for a following conflict. Despite this, the failure of collective security, the econom...

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Answered by Vinicius S. History tutor
2002 Views

Why does anaerobic respiration have a lower ATP yield than aerobic respiration? (4 marks)

During anaerobic respiration only glycolysis can occur as oxygen is not present to act as the final electron acceptor in oxidative phosphorylation, therefore only substrate level phosphorylation can occur...

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Answered by Amy D. Biology tutor
10967 Views

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