Mindblown: a blog about philosophy.
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The reusable booster rockets of the U.S. space shuttle employ a mixture of aluminum and ammonium perchlorate for fuel.
The reusable booster rockets of the U.S. space shuttle employ a mixture of aluminum and ammonium perchlorate for fuel. A possible equation for this reaction is What mass of NH4ClO4 should be used in the fuel mixture for every kilogram of Al?
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Choose correct form: During the 19th century, Charles Dickens ______ one of the most famous British novelists.
1.became 2. has become 3. becomes 4. had become 5. would became Answer:- 1. bacame The preceding phrase alludes to the past. As a result, it requires a past tense verb to finish it. “Became” is the most appropriate verb among the ones offered. The right response would have been “Had become” if the statement…
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The density of pure silver is 10.5 g/cm3 at 20C. If 5.25 g of pure silver pellets is added to a graduated cylinder containing 11.2 mL of water, to what volume level will the water in the cylinder rise?
Answer:- The mass of silver pellets is 5.25 g also the thickness of silver is 10.5 g/cm3. Consequently, the capacity of water in a cylinder that has been occupied with silver pellets will rise to 111.2 mL.
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A star is estimated to have a mass of 2 1036 kg. Assuming it to be a sphere of average radius 7.0 105 km,
A star is estimated to have a mass of 2 1036 kg. Assuming it to be a sphere of average radius 7.0 105 km, calculate the average density of the star in units of grams per cubic centimeter.
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Occasionally, warning flares of the type contained in most automobile emergency kits fail to ignite.
Occasionally, warning flares of the type contained in most automobile emergency kits fail to ignite. A consumer advocacy group wants to investigate a claim against a manufacturer of flares brought by a person who claims that the proportion of defective flares is much higher than the value of .1 claimed by the manufacturer. A large…
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The amount of time spent by a statistical consultant with a client at their first meeting is a random variable having a normal distribution
The amount of time spent by a statistical consultant with a client at their first meeting is a random variable having a normal distribution with a mean value of 60 min and a standard deviation of 10 min. a. What is the probability that more than 45 min is spent at the first meeting? b.…
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Thirty percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection.
Thirty percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection. a. Among 15 randomly selected cars, what is the probability that at most 5 fail the inspection? b. Among 15 randomly selected cars, what is the probability that between 5 and 10 (inclusive) fail to pass inspection? c.…
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Components of a certain type are shipped to a supplier in batches of 10. Components of a certain type are shipped to a supplier in batches of ten. Suppose that 50% of all such batches contain no defective components. 30% contain one defective component, and 20% contain two defective components. Two components from a batch are randomly selected and tested. What are the probabilities associated with 0, 1, and 2 defective components being in the batch under the condition that neither tested component is defective.
Answer:- Binomial Coefficient (nk)=n!k!(n−k)! Conditional Probability, P(β|δ)=P(β⋂δ)P(δ) If: the event that there are 0 defective components = β0, then probability that the batch contains 0 defective components = P(β0)=0.48
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A certain company sends 40% of its overnight mail parcels by means of express mail service A1.
A certain company sends 40% of its overnight mail parcels by means of express mail service A1. Of these parcels, 2% arrive after the guaranteed delivery time (use L to denote the event late delivery). If a record of an overnight mailing is randomly selected from the company’s files, what is the probability that the…
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An advertisement for the “30-in. Wonder” that appeared in the September 1983 issue of the journal Packaging claimed that the 30-in.
An advertisement for the “30-in. Wonder” that appeared in the September 1983 issue of the journal Packaging claimed that the 30-in. Wonder weighs cases and bags up to 110 lb and provides accuracy to within 0.25 oz. Suppose that a 50-oz weight was repeatedly weighed on this scale and the weight readings recorded. The mean…
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