5. A capacitor has a capacitive reactance of 50 2 when connected to a 60-Hz line. What will be the capacitive reactance if the capacitor is connected to a 1000-Hz line?

Q: 3. Calculate the net reproductive rate in a population with 3.0 billion people (in year 1),…

A:

Q: Fühd dy ldy bY Imelicít differeveti ration. 3

A:

Q: 9) Suppose a culture of bacteria starts with 60 bacteria and grows to 500 bacteria in 6 hours. Find…

A: ,

Q: According to estimates, the global emissions of CO2 in the energy sector will total about 36 billion…

A: Given that the amount of CO2 emissions in the energy sector in 2020 is about 36 billion metric tons.…

Q: II. Consider an object in a surrounding with constant temperature of 25°C. If the temperature of the…

A:

Q: 7. A 170kV 3 phase electric source delivers 200 MVA to a balanced load with pf of 90% lagging. What…

A:

Q: 3. A small metal bar, whose initial temperature was 20° C, is dropped into a large container of…

A: Let's find.

Q: 4. A tank contains initially 400 liters of brine holding 100 kg of salt in solution. Water…

A:

Q: Suppose a metal ball is heated in an oven at 195 °C for a very long time. After, it was removed and…

A: Let the temperature of metal ball at time t be:  y(t) Surrounding temperature is:  A = 25°C…

Q: (5) Suppose 2 mg of a drug is injected into a person's bloodstream. As it metabolizes, the amount of…

A: Initially 2 mg of drug is injected and it decreases at the rate of 4% each hourWhen must the person…

Q: 2. A body at 100°C warms at 120ºC after 5 minutes in a surrounding at 30°C. At what time will its…

A: Given- T0=100°C,Ts=30°C ,T=120°C To Find- The time at the temperature of the body will be double.…

Q: The ideal gas law pV = 0.082T shows the relationship among volume V, pressure p, and the temperature…

A:

Q: When time is measured in​ days, the decay constant for a particular radioactive isotope is 0.16.…

A: The equation for radioactive decay is N(t)=N0(e-λt), where N(t) is the new amount of isotope , N0is…

Q: 5. An apple pie with an initial temperature of 170 °C is removed from the oven and left to cool in a…

A:

Q: 2) A body temperature of 50 °F is placed in an oven whose temperature is kept at 150 °F. If after…

A: time required for the body to reach 100°F=?

Q: Suppose a metal ball is heated in an oven at 195 °C for a very long time. After, it was removed and…

A: follow the procedure given below.

Q: Calculate the time for 10 per cent of the sites on a (100) tungsten surface with a bec unit cell and…

A: The formula used for calculating time has some error. The actual formula for time is t= (number of…

Q: Suppose that poaching reduces the population of an endangered animal by 9% per year.  Further…

A: Given query is to find when will the endangered animal face the extinction.

Q: 2. A tank contains initially 400 liters of brine holding 100 kg of salt in solution. Water…

A:

Q: 2. A body at 100°C warms at 120°C after 5 minutes in a surrounding at 30°C. At what time will its…

A: Use the Newton's formula for finding the time. First use the Newton's formula for finding k then…

Q: 4. A well-circulated pond contains 1 million L of water that contains a pollutant at a concentration…

A: circulated pound contains 1 million litre of water that contain important at the separation of 0.01…

Q: 2.18: When brought to the emergency room, an accident victim has 3 liters of blood and is still…

A: Let x(t) gltr be the amount of antibiotic drug.  rate in = 0.5 ltrhr0.5gltr=0.25ghrrate…

Q: A roast turkey is removed from an oven when its temperature has reached 185°F and is placed on a…

A: In the question it is asked to solve for the temperature, also for the time when it is cooled down…

Q: A body of an unknown temperature is placed in a room which is held at a constant temperature of 30 .…

A: Given that, A body of an unknown temperature is placed in a room which is held at a constant…

Q: Two tanks, A and B, each contain 10 L of salt water. Initially, 31 g of salt are found in A, and 27…

A: Given: To explain the given statement as follows, V = 10L, u(0) = 31, v(0) = 27

Q: The molarity of a solute in solution is defined to be the number of moles of solute per liter of…

A: The provided information is:

Q: The molarity of a solute in solution is defined to be the number of moles of solute per liter of…

A: The standard deviation of X and Y are 0.05 and 0.10, respectively.

Q: 4. The population of Lalaland is 600,000 currently and is expected to grow (continuously) at 3.5%…

A: The present population P =600,000 Growth rate r = 3.5 % per year To find population after time t =…

Q: 1. Formulate the mathematical model for the voltage rate vr(t) developed at the loops during…

A:

Q: S Sec ta

A: Solution is below

Q: capacitor is constructed with two parallel metal plates each with an area of 0.61 m2 and separated…

A:

Q: 2. The liquid base of an ice cream has an initial temperature of 210°F before it is placed in a…

A: Given : The liquid base of an ice cream has an initial temperature of    To find at what time will…

Q: It is projected that t years from now the population of a certain country will be changing at the…

A: We can solve this question as below

Q: 15. A ball drops from a height of 120 dm. If each time it strikes the ground it bounces 3/4 of the…

A:

Q: quantity with an initial value of 220 grows continuously at a rate of 9.5% per hour. What is the…

A:

Q: b. A spherical metal ball with initial temperature of 190°C is placed outside where the temperature…

A:

Q: 9. A patient weighing 70 kg should receive a dose of 1400 units of rabies immune globulin after…

A: Explained below

Q: It is estimated that t months from now, the population of a certain town will be changing at the…

A: This question is related to population growth, We will solve it using integration.

Q: 1. Between the years 2011-2019, which year had the fewest global cases of measles reported?…

A: According to given chart of World Health Organization, graph shows the results of the global measles…

Q: 2) A new bacteria strain called HK-203 has been discovered and will require a culture of at least…

A: Initial amount of bacteria is: x=400 For every interval of 52 minutes bacteria doubles. After 1st…

Q: Suppose that a bacteria population doubles every eleven hours.  If the initial population is 2,000…

A:

Q: Suppose the total money supply is $400bn, and the parameters r and c are the same as in question 3.…

A:

Q: 1. Suppose a culture of 300 bacteria at BIO Farm is put into Petri dish and the culture doubles…

A:

Q: A certain radioactive isotope has a half-life of 5 days. If one is to make a table showing the…

A:

Q: An RL circuit has an emf of 5 V, a resistance of 50 Q, an inductance of 1 H, and no initial current.…

A:

Q: 10. The mass of a radioactive substance is 1000mg and decreases by 7% per year. What is its mass…

A:

Q: 2. The number of transistors in a chip produced by Intel has been known to increase at a rate…

A: Let the number of transistors at time t is:  y(t)

Q: Device 2 is capable of detecting seismic changes up to a distance of 1.4 times that of device 1.…

A: In this we have to do the given instructions and approximate the value to the nearest 100,000 and…

Q: 8. Determine the half-life of the substance if an initial 150mg has decayed to 50mg in a an of 20…

A: Given query is to find half life and the time when 95% amount decayed.