Determine what would be the intensity level
At Cape Canaveral, on blastoff a rocket generates an intensity level of 190 dB as measured 10m from the rocket.Determine what would be the intensity level at 100m away? (Suppose no energy is lost due to reflections, and so on).
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Determine how long after the switch is closed will it take for the current in the circuit to reach half of its greatest value?
A package of twelve Ping-Pong balls haves two defectives. An inspection procedure to check on the quality of the package is to select randomly two Ping-Pong balls for inspection and to reject the entire package if either of the two is defective.
Supposing that frictional forces might be avoided, determine the magnitude of the acceleration of the block of 28 kg?
In case of the lunar module an impact velocity of 3.0 m/s or less was necessary for a safe landing. Supposing this to be the case for Mars lander as well, at what maximum height could the pilot shut down the engines to make sure a safe landing?
A package of twelve Ping-Pong balls haves two defectives. An inspection procedure to check on the quality of the package is to select randomly two Ping-Pong balls for inspection and to reject the entire package if either of the two is defective. W
At the same time west bound train leaves Toronto to Vancouver travelling at about 70 km/h. How far from Toronto are trains when they pass each other? For how long have they been travelling?
What is the probability that on a randomly selected day during this period a unit of currency B was worth less than 1.227 units of currency A? (in percentage)
In the last quarter of the 2007, a group of 64 mutual funds had the mean return of 1.2% with a standard deviation of 6.5%. Suggest the Normal Model N (0.012, 0.065) for the returns of these mutual funds.
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