Physics, 31.12.2019 02:31 kyleeeeee94
Abug zapper consists of two metal plates connected to a high-voltage power supply. the voltage between the plates is set to give an electric field slightly less than 1×10^6 v/m. when a bug flies between the two plates, it increases the field enough to initiate a spark that incinerates the bug.
if a bug zapper has a 7000 v power supply, what is the approximate separation between the plates?
(a) 7×10-2 cm
(b) 0.7 cm
(c) 7 cm
(d) 70 cm
Answers: 1
Physics, 21.06.2019 14:30, squawk1738
What is the approximate amplitude of this wave a.10 seconds b.15 centimeters c.30 centimeters d.15 seconds
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Physics, 21.06.2019 23:30, KKHeffner02
Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?
Answers: 1
Physics, 22.06.2019 13:10, jaeana
1. the materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. she knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. she also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four (4) days.2. at what point should resin be reordered? a. 0 kilograms remainingb. 50 kilograms remainingc. 200 kilograms remainingd. 400 kilograms remaininge. 500 kilograms remaining3. if order size was 1,000 kilograms of resin, what would be the length of an order cycle? a. 0.05 daysb. 4 daysc. 16 daysd. 20 dayse. 50 days4. if the order size was 1,000 kilograms of resin, what would be the average inventory level? a. 50 kilogramsb. 200 kilogramsc. 500 kilogramsd. 800 kilogramse. 1,000 kilograms5. if the order size was 1,000 kilograms of resin, what would be the daily total inventory costs, excluding the cost of the resin? a. $5b. $10c. $20d. $25e. $40
Answers: 3
Physics, 22.06.2019 13:30, Bra1nPowers
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
Abug zapper consists of two metal plates connected to a high-voltage power supply. the voltage betwe...
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