Firstly, I would like to mention the concepts that I … Read More...
A certain sum of money being invested in stocks on simple interest, trebled in 20 years, what is the rate of interest?

## A certain sum of money being invested in stocks on simple interest, trebled in 20 years, what is the rate of interest?

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Out of forty students, there are 14 who are taking Physics and 29 who are taking Calculus. What is the probability that a randomly chosen student from this group is taking only the Calculus class?

## Out of forty students, there are 14 who are taking Physics and 29 who are taking Calculus. What is the probability that a randomly chosen student from this group is taking only the Calculus class?

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A box contains six red balls and four green balls .Four balls are selected at random from the box. Find Probability for (a) two of selected ball will be red and two will be green, (b) no more than two of the balls are red, (c) no more than three of the balls are red

## A box contains six red balls and four green balls .Four balls are selected at random from the box. Find Probability for (a) two of selected ball will be red and two will be green, (b) no more than two of the balls are red, (c) no more than three of the balls are red

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Explain why a Ti atom is larger than a Cu atom

## Explain why a Ti atom is larger than a Cu atom

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Determine the bonding type between the following types of atoms: Al-Ni, Si-Ge, C-O, Fe-O, Ne-Ar

## Determine the bonding type between the following types of atoms: Al-Ni, Si-Ge, C-O, Fe-O, Ne-Ar

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2) For question 1, explain the changes in performance of the automobile in terms of : a) acceleration (faster, same, slower) b) braking (faster, same, slower) – remember braking involves friction of car’s wheels with the road c) handling under high winds (better, same, worse) Hint: think in terms of freshman physics (F=ma, and frictional force depends on the load applied)

## 2) For question 1, explain the changes in performance of the automobile in terms of : a) acceleration (faster, same, slower) b) braking (faster, same, slower) – remember braking involves friction of car’s wheels with the road c) handling under high winds (better, same, worse) Hint: think in terms of freshman physics (F=ma, and frictional force depends on the load applied)

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1) Estimate the weight savings if a typical automobile engine (100 kg) is made of aluminum instead of cast iron. Assume the total volume required is the same. (The density of iron is 7.86 g/cm3, the density of aluminum is 2.70 g/cm3). Hint: density = mass/volume

## 1) Estimate the weight savings if a typical automobile engine (100 kg) is made of aluminum instead of cast iron. Assume the total volume required is the same. (The density of iron is 7.86 g/cm3, the density of aluminum is 2.70 g/cm3). Hint: density = mass/volume

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