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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Total answers42 questions answered
Total hours1 hours taught
Total resources2 resources uploaded

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Hi, I'm David

BSc Physics, University of Oxford I’ve worked with more than 50 students before, and I’m proud to have 90% A* to B success rate with my students.

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University of Oxford

Physics - 2:1 (1987 - 1990)

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Business
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David Mageller

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OtherPost money Safe with Valuation Cap - example

This is an example of a term sheet that early stage companies can use.

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English
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David Mageller

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My answers

Asked by Andreea

Maths 💯
What is 589 times 347?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

correction: 204,383 🙂

Asked by Andreea

Maths 💯
What is 589 times 769?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

this one is 452,941!

Asked by Andreea

Maths 💯
What is 589 times 347?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

It’s 452,941

Asked by Quacken

Business 👔
What colour hair am I allowed as a flight attendant?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Airlines generally require flight attendants to have a “groomed look that meets conventional standard”, as BA describes. “For women, you will need ...Learn more

Asked by Ajay

Maths 💯
How do you simplify surds? Helpp!?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

I can’t send pictures properly here so I thought I’d send you this link. It’s really helpful as a good intro to surds. Have a look! https://www.bbc...Learn more

Asked by Nikita

Economics 📈
How is a current account impacted by injections?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Injections into the circular flow are additions to investment, government spending or exports so boosting the circular flow of income leading to a m...Learn more

Asked by Edis

Economics 📈
What is the difference between internal and external economies of scale?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Internal economies of scale are firm-specific, or caused internally, while external economies of scale occur based on larger changes outside of the ...Learn more

Asked by Edis

Economics 📈
Which type of firm faces the most competition and why? Is this good for economic efficiency?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Technically, firms in 'perfect competition' have the most amount of competition because the goods are identical and there are zero barriers to entry...Learn more

Asked by Jeremy

History 🕌
Who started work war 1?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The simplest answer is that the immediate cause was the assassination of Franz Ferdinand, the archduke of Austria-Hungary. His death at the hands of...Learn more

Asked by Abas

Economics 📈
What is the meaning of the term economies of scale?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The text book definition is when "cost per unit falls as output rises." If Apple only produces one iPhone, it'll be pretty expensive as there are a...Learn more

Asked by Abas

Economics 📈
What is the meaning of the term diseconomies of scale?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The text book definition is when "cost per unit rises as output rises." I think there's an answer somewhere that explains economies of scale. The p...Learn more

Asked by Shakera

French 🇫🇷
How do you differentiate when to use the past imperfect and perfect tense?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

You would use the perfect to talk or write about something which took place once in the past: 'I went to France last year'. You would use the imper...Learn more

Asked by Nadine

Economics 📈
What are diseconomies of scale?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

I take it your queston is asking what diseconomies of scale means? Sorry if I've got it wrong. I think there's an answer somewhere that explains ec...Learn more

Asked by Nadine

Economics 📈
How do you show revenue gain and revenue loss on both an inelastic and elastic demand graph ?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

If I've understood your question correctly, you'd first need to understand how revenue could change: When demand is inelastic – a rise in price lea...Learn more

Asked by Selina

Maths 💯
Why is √a√b equal to √ab?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The simplest way to do this is to take both expressions and apply the exact same transformation to each of them. If both answers are equal, then we ...Learn more

Asked by Shahir

Economics 📈
If on the PPF diagram, a point is not on the curve, but yet is allocatively efficient because customer demand is met, is the point still considered allocatively efficient?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

If it’s within the curve, it cannot be allocatively efficient. Definitions are always really important for questions like this. Allocative Efficien...Learn more

Asked by Shahir

Economics 📈
If on the PPF diagram, a point is not on the curve, but yet is allocatively efficient because customer demand is met, is the point still considered allocatively efficient?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

If it’s within the curve, it cannot be allocatively efficient. Definitions are always really important for questions like this. Allocative Efficien...Learn more

Asked by Shahir

Economics 📈
If on the PPF diagram, a point is not on the curve, but yet is allocatively efficient because customer demand is met, is the point still considered allocatively efficient?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

If it’s within the curve, it cannot be allocatively efficient. Definitions are always really important for questions like this. Allocative Efficien...Learn more

Asked by Sammy

Science 🔬
Describe the difference between a reflex action and a voluntary action?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

A voluntary action is one that is consciously done. You want to pick something up, so you make the motion with your arm, hand (and even body) to rea...Learn more

Asked by Samiya

Science 🔬
Explain all the positive effects of reducing energy consumption on the environment?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

You can expand on these points in your answer, but here are some of the big things: 1. Reduces pollution 2. Fewer greenhouse gas emissions 3. Helps...Learn more

Asked by Samiya

Science 🔬
Explain all the positive effects of reducing energy consumption on the environment?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

You can expand on these points in your answer, but here are some of the big things: 1. Reduces pollution 2. Fewer greenhouse gas emissions 3. Helps...Learn more

Asked by Danny

Art & Drama 🎨
What are the different types of stage directions?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

There are quite a few stage directions. Here's a few: Proscenium stage: A stage where the audience sits on one side only is called a proscenium sta...Learn more

Asked by Danny

Art & Drama 🎨
What are the different types of stage directions?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

There are quite a few stage directions. Here's a few: Proscenium stage: A stage where the audience sits on one side only is called a proscenium sta...Learn more

Asked by Hannah

Chemistry ⚛️
What is the percentage yield formula?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The percentage yield is a way of comparing the actual yield with the predicted yield. It's calculated using a formula: percentage yield = (actual y...Learn more

Asked by Hannah

Chemistry ⚛️
What is the percentage yield formula?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The percentage yield is a way of comparing the actual yield with the predicted yield. It's calculated using a formula: percentage yield = (actual y...Learn more

Asked by Noor

Chemistry ⚛️
Explain what makes transition metal ions coloured?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The partially full d-orbitals in transition metals have energy splittings that happen to lie in the visible range. Depending on the arrangement of s...Learn more

Asked by Noor

Chemistry ⚛️
What are d-orbitals?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Orbitals contain two electrons, one or more orbitals make up subshells, one or more subshells make up a shell At GCSE you are usually told that ele...Learn more

Asked by Abdalla

History 🕌
What are the key features of the New Economic Policy set in 1921 by Vladimir Lenin?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Though there a few different features, here's a few you can focus on: 1. The laws allowed the co-existence of private and public sectors. 2. The N...Learn more

Asked by Noor

Biology 🌱
If the dominant allele determines the phnotype, then how do people get different coloured eyes?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

If both parents' genes contain at least one allele which is recessive, it is possible for offspring of the parents to express a color determined by ...Learn more

Asked by Noor

Chemistry ⚛️
What is a dynamic equilibrium?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Some reactions are able to go in two directions; forward and reverse. They are known as reversible reactions. When the rate of the forward reaction...Learn more

Asked by Bakkar

Geography 🗺
What is the PAR model? Explain each step?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The Pressure and Release (PAR) model understands a disaster as the intersection between socio-economic pressure and physical exposure. It was develo...Learn more

Asked by Bakkar

Geography 🗺
What is the PAR model? Explain each step?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The Pressure and Release (PAR) model understands a disaster as the intersection between socio-economic pressure and physical exposure. It was develo...Learn more

Asked by Sammy

Maths 💯
How to calculate irrational Surds? (Steps of how to answer it)?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

A number is described as rational if it can be written as a fraction (one integer divided by another integer), e.g. 5/7. The decimal form of a ratio...Learn more

Asked by Hamza

Science 🔬
I have a question about gcse chemistry. How is an emulsion of water and oil formed?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Oil is hydrophobic (water-hating) and water is hydrophilic (waster-loving). Under normal circumstances it is not possible to mix the two as they wil...Learn more

Asked by Nasra

Spanish 🇪🇸
What is the imperfect and perfect tense and how would you use it?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Spanish has two past tenses: preterite and imperfect. Most verbs can be put into either tense, depending upon the meaning. The preterite is used f...Learn more

Asked by Omar

Maths 💯
A book has a font and a back and 400 pages.The front and back cover are each 0.9mm thick, measured to 1 decimal place. Each is 0.13mm thick measures to two decimal place. Calculate the minimum thickness of the book.Some working must be shown?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Since both the measurements are rounded, let’s first find out the smallest possible values they could have had before rounding. This would be findin...Learn more

Asked by Nasra

Sociology 🤝
What is the Marxist perspective of crime?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Marxists essentially see crime and deviance as defined by the ruling class and used as a means of social control – if you don’t conform then you wil...Learn more

Asked by Amar

Maths 💯
I need help on a maths question: A plane flies 300km from an airport, A, on a bearing of 240°.The plane turns and travels for 400km on a bearing of 050°. a) Using a scale of 1 cm to 50km, draw an accurate drawing of the flight path of the plane. b) What is the bearing that the plane must travel on to return to the airport?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

In my answer, I will be assuming the bearing is relative, i.e. we figure out the bearing based on the current direction. I cannot upload a picture ...Learn more

Asked by Selina

Computer Science 🖥
What is a serial bus?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

A bus connects components of a computer, such as the CPU (central processing unit) and memory. In serial communication, data is sent one bit at a ti...Learn more

Asked by Max

Physics 🚀
How do noise cancelling headphones work?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

Noise cancelling headphones convert analog signals (audio sound) to digital signals using a mathematical formula called Fourier Transforms. The di...Learn more

Asked by Selina

History 🕌
Which revolution lead to the abolition of slavery in Haiti?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

The Haitian Revolution

Asked by Selina

Chemistry ⚛️
Does red paint smell like blue paint?
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David Mageller

If you love what you do, you'll never work a day in your life - Someone

They smell different. Red paint is made of Iron Oxide which has a distinct metallic smell. Blue paint is made from Copper compounds, which has a dif...Learn more