The count in a bacteria culture was 200 after 15 minutes and 1600 after 30 minutes. Assuming the count grows exponentially, What was the initial size of the culture? Preview

Q: There are five microns per cell and a total of 100,000 cells in a spore. Given this information,…

A: Given: Cell dimension = 5×10-6 m 100,000 cells in a spore. Spore dimension = 5×10-6×100,000 = 0.5 m

Q: Find the number of ways of putting 3 particles in 5 boxes according to the three kinds of…

A: 3 particles in 5 boxes

Q: A bottle of liquid medication contains 300mL and cost $15.00. If the usual dose is 1.5…

A: Given A bottle of liquid medicine contains 300mL and costs $15.00. Dosage Amount =1.5 tablespoon 1…

Q: What is the mass number of an alpha particle?

A: Mass number is the total number of nucleons. It is the sum of number of protons and neutrons.

Q: The number of viruses (V , measured in trillions or 10¹²) that infect a person is a function of the…

A: Fever as a function of immunosuppression F(I) =37+2*I^2 If immunosuppression is complete then fever…

Q: After the first covid-19 case found in Olde town, a group of volunteers started counting the number…

A: Required : Meaning of the number 0.2

Q: In quantitative and qualitative research samples usually are random in the first, while purposeful…

A: Answer In quantitative research the sample used are in randomly. It is also called probability…

Q: Figure 1 and Figure 2 show a procedure for the industrial ergonomics Explain the effect for the…

A: Given:- In the figure, two way is given for doing the work by the worker.  in figure 1  the worker…

Q: A certain chemical reaction requires of 4.82 X104 Jenergy input for it to go. What is the increase…

A: Energy, E = 4.82 X104 J

Q: Graphs that show the relationship between radiation received and the organism's response are called:…

A: A graph shows the relation ship between radiation received and the organisms response are known as…

Q: The size of a bacteria is 0.25 micrometer. This size is same as О а. 250 nm O b. 25 nm O c. 2.5 nm O…

A: 1 micrometer = 10-6 m 1 nm = 10-9 m

Q: A colony of bacteria originally contains 700 bacteria. It doubles in size every 40 minutes. How many…

A: Given : Original Population of bacteria=700 Time taken to double up once=40 minutes We have to find…

Q: 4. Cobalt-60 has a half-life of approximately 5 years. If 53 g of the material was stored for 20…

A:

Q: If cell size does not change and we reduce N, then the capacity increases. How?

A: Yes, If cell size does not change and we reduce N, then the capacityincreases.

Q: Differentiate the following as related to measurements: resolution, precision, and accuracy a)…

A: In all experiments in science, measurement is a important part. We need to measure different…

Q: If the delta variant  death rate per day (Po) peaked at 2000 in late September and declined at the…

A:

Q: The mass of a substance, which follows a continuous exponential growth model, is being studied in a…

A:

Q: Cite and discuss a specific example on the role of physics in biology.

A: As we know, physics is the study of the laws of nature. After finding the laws we use them for…

Q: What is a longitudinal study?

A: There are two types of study of data in physics, 1. Longitudinal study 2. cross-sectional study   In…

Q: A GM counter has dead time of 250s,it records 20,000 counts per minute,what is the actual count rate

A: Actual count rate=?

Q: How many 6.60 × 10−6 m long red blood cells stack up to be the thickness of a single sheet of 1.0 ×…

A: Thickness of 1 Red Blood Cell(RBC) = 6.6 × 10-6 meter. Thickness of paper = 1 × 10-4 meter. Number…

Q: In a quasi-esperimental design, how are participants assigned to groups? A. Participants are…

A: Quasi-experimental designs are more practical and workable to carryout research studies hence they…

Q: Sarah observed her water intake per day. Find her average water intake and the its variance. Day…

A:

Q: If 60% of U.S. petroleum use goes for transportation, and 1% of this goes for buses, how much oil…

A: The amount of petroleum used in US is 60%, and x2 be the amount of petroleum used in buses 1%.The…

Q: the minimum sample size n needed to estimate μ for the given values of​ c, σ​, and E.

A: σ= 7.4 c= 0.90and E = 2  Find:- Find the minimum sample size n needed to estimate

Q: A culture of the bacterium Salmonella enteritidis initially contains 50 cells. When introduced into…

A:

Q: Explain why it is necessary to perform 20 trials and use the mean value for calculating the reaction…

A: Since in each trial we get different results so we cannot determine the exact value but by averaging…

Q: A sample of a gold nugget was measured and ha a mass of 2.94 lbm. if the gold is drawn into a wire…

A: The mass of the gold nugget is, m=2.94 lbm454 g1 lbm=1334.8 g Find the volume of the gold.…

Q: what is the percentage of mass of CI in MgCI2 if it is 25.5 percent Mg by mass

A:

Q: This type of error is manifested by values either consistently higher or lower than the accepted…

A: Systematic error. Systematic errors are biases in measurement which lead to a situation wherein the…

Q: -3 gram is

A:

Q: What is said to be the main difference between cohort studies and experimental studies?

A: Experimental studies involve active manipulation of exposure (treatment/alternative treatment)…

Q: A GM counter has dead time of 250 s. It records 20.000 counts per minute. What is the actual count…

A: SOlution: Given that dead time T = 250 micro s = 250x10-6 s measured counting rate n = 20.000 counts…

Q: The heights of every person in a population have a bimodal distribution with a mean of 62 inches and…

A: (a) Write the given data. Bimodal distributionμ=62 inchesσ=3 inchesN=25

Q: In an experiment similar to Perrin's, you counted the concentration of suspenc particles in a…

A: We know that we have given that  When observing the suspension at a depth of 9 mm from the bottom of…

Q: The population of bacteria in cultures grows at a rate proportional to the number of bacteria…

A: The growth rate of the population of bacteria is, Here, N denotes the number of bacteria and k…

Q: The cell-survival data in the table below fit a multitarget, single-hit survival curve. A)Find the…

A: The plot of the given data comes out to be as follows:

Q: If 10 kg of rock salt is placed in water, it dissolves at a rate proportional to theamount of salt…

A: Let the x be the amount of dissolved salt in the water. The undissolved amount of salt can be…