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A conical pendulum is a mass suspended from a point that traces out a horizontal circle. By balancing the weight with the tension in the string, determine the speed of the bob.

Draw a free-body diagram for the mass with the pendulum suspended at an angle θ to the vertical. The tension in the rope is T and the radius of the circle is r. Firstly, resolve horizontal forces and equate ...
DS
Answered by Daniel S. • Physics tutor
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What's the difference between an ionic bond and a covalent bond?

They're both similar but form between different types of elements. An ionic bond will form between a metal and a non-metal. The metal will donate electrons and the non-metal will accept the electrons, formin...
GS
Answered by George S. • Chemistry tutor
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Round 4 and 3/8 to the nearest whole number.

Here we know the lower option will be 4, and that as our numerator is smaller than our denominator, or higher whole number to round to will be 5. Between 4 and 5 the halfway point is 4/8 as 4 is half of eigh...
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Answered by Deepali D. • Maths tutor
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Quantitative and qualitative testing are important aspects to consider when selecting a material or materials for a specific product. Explain what you understand by each of these terms.

Quantitative testing is objective and can often be judged numerically. For example, 'The material must weigh no more than ......' is an example of a quantitative specification point. Qualitative testing is u...
DD
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A portable space saving football goal has been launched to promote sport and activities for 3 to 5 year old children. Describe the properties of ABS that make it a suitable material for the football goal.

It is strong and lightweight, and so can be taken apart and stored in a car boot etc. for transport. ABS has a glossy finish which means it requires not protection for indoor or outdoor use. It is a hard pol...
DD
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