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A circular loop of wire of radius 0.25 cm is expected to an external
magnetic field that is perpendicular to the plane of the loop. For a time,
the magnetic field decreases at a rate of 0.0035 T/s. What is the
magnitude of the induced electromagnetic force in the loop?
Scott answered 18 out of 20 questions on his homework assignment correctly. What percent of the questions did he miss?
Work Interruptions Survey found that out of 300 workers, 245 said they were interrupted three or more times an hour by phone messages, faxes, etc. Find the 90% confidence interval of the population proportion of workers who are interrupted three or more times an hour.
A body of mass 10 kg and initially at rest is subjected to a force of 20N for a distance of 10m. Calculate the change in kinetic energy of the body
What mass of nitrogen is needed to react with 21.25 g of hydrogen?
According to the classical cash reserve system,
which of the following statements is/are true
regarding banks in South Africa?
(a) They are required to hold a minimum cash
reserve of 2,5% of their deposits.
(b) The level of the repo rate influences the interest
rate at which the banks provide credit to
individuals.
(c) The SARB provides cash reserves through
accommodation policy to the banks experiencing
liquidity shortage.
O a. (b)
O b. (a)
O c. (a) and (b)
O d. (c)
O e. (a), (b) and (c)
Exercise A: A hog raiser in a certain province uses two meth ods of pig-farming: intensive pig farming, where pigs are housedindoorsin group-housing or straw-lin essheds; andextensive pigfarming, where pigs are allowed to wander around the farm or fence. Test the hypothesis wheth er or not the mean weight of pigs in intensive farmingis better th an the extensive farming based from the mean weight of the pigs in the sample with data shown below. Use a one-tailed test at a = 1%. Inten sive farming: X, = 85 kg, si = 10 kg, and n = 55 Extensive farming: X, = 79 kg, s = 6 kg, and n, = 45
Two equal charges are placed 100m a part of the force of attraction between them is 0.2N,calculate the value of the two equal charges
Briefly discuss the relationship between increase on fuel taxes and public social welfare as well as economic growth in South Africa
Briefly discuss the relationship between increase on fuel taxes and public social welfare as well as economic growth in South Africa
