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A person stands on top of a cliff and throws a ball with a speed of 20 m/s at an angle of 10 degrees from above the horizontal into the sea. What is the height of the cliff to 1 decimal place?

I would begin by instructing them to draw a diagram of the problem. This would be of a cliff, labelled height s y , with an arrow representing the ball being thrown from the top. This should be labelled with...
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Answered by Archie C. • Physics tutor
2602 Views

how do you conjugate a regular verb in the present indicative tense?

To conjugate any verb you must first find the stem, ie the root of the verb from the infinitive form. In Spanish this means removing the AR/ER/IR ending from for example habl-AR (to talk) and thus as you can...
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Answered by Marianna M. • Spanish tutor
1440 Views

What is a negative externality and how can it be corrected?

A negative externality is a type of market failure that occurs when the consumption or production of a good has an external cost on a third party that is not involved in the transaction. This external cost i...
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Answered by Matthew L. • Economics tutor
3524 Views

How would you convert a recurring decimal to a fraction?

With this question, it is useful to work with a specific example, so let’s take the recurring decimal 0.27. The first step in converting it to a fraction is to set it equal to x, this will help us with our a...
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Answered by Matthew L. • Maths tutor
7241 Views

How do I find the co-ordinates and nature of the stationary points on a curve?

The stationary points on a curve are the exact point of a maximum, minimum or point of inflection. They can be defined as points where the gradient, dy/dx = 0. You can show this by drawing a tangent to the c...
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Answered by Matthew L. • Maths tutor
7213 Views