Homework Answers
Add Answer to:
Interconversion of prefixed and base SI units A cell biologist measures the volume of a bacteria...
Interconversion of prefed Sl units A crystallographer measures the horizontal spacing between molecules in a crystal....
Interconversion of prefed Sl units A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 19.38mm. What is the total width of a crystal in millimeters 10 molecules across? Write your answer as a decimal,
A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass...
A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 76.19 pg . What is the total mass in micrograms of cofactor A in a yeast colony containing 105 cells? Write your answer as a decimal.
A biologist recorded a count of 340 bacteria present in a culture after 9 minutes and...
A biologist recorded a count of 340 bacteria present in a culture after 9 minutes and 950 bacteria present after 22 minutes. A. To the nearest whole number, what was the initial population in the culture? B. Round to four decimal places, write an exponential equation representing this situation. C. To the nearest minute, how long did it take the population to double?
A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air...
A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spherical air tank that measures 60.0 cm wide. The biologist estimates she will need 8100. L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres. Be sure your answer has the correct number of significant digits. ? Check
Modeling Exponential Growth and Decay A biologist recorded a count of 360 bacteria present in a...
Modeling Exponential Growth and Decay A biologist recorded a count of 360 bacteria present in a culture after 7 minutes and 1200 bacteria present after 20 minutes. a. To the nearest whole number, what was the initial population in the culture? The initial population was around bacteria. b. Rounding to four decimal places, write an exponential equation representing this situation. B(t) = c. To the nearest minute, how long did it take the population to double? The doubling time of...
O GASES Solving applications of Boyle's Law Omar V A marine biologist is preparing a deep-sea...
O GASES Solving applications of Boyle's Law Omar V A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spherical air tank that measures 87.0 cm wide. The biologist estimates she will need 7100. L. of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres. Round your answer to...
Model Exponential Growth and Decay (4.7.38-39) A biologist recorded a count of 300 bacteria present in...
Model Exponential Growth and Decay (4.7.38-39) A biologist recorded a count of 300 bacteria present in a culture after 5 minutes and 1050 bacteria present after 28 minutes. a. To the nearest whole number, what was the initial population in the culture? The initial population was around 219 bacteria b. Rounding to four decimal places, write an exponential equation representing this situation. B(t) 10e 30t c. To the nearest minute, how long did it take the population to double? The...
A biologist places 4 thousand bacteria in a nutrient rich solution and monitors the rate of growt...
A biologist places 4 thousand bacteria in a nutrient rich solution and monitors the rate of growth of the bacteria every 15 minutes. Use the table to find the best possible overestimate for the total amount of change in bacteria from 1 hour to 2 hours. Make sure to include units. I. Time in hours 0 .25 0.5 0.7 10 125 15 175 2.0 2.25 2.5 2.75 Rate of growth of bacteria in units 119 14 168 199 236 282...
1. Urethane foam doubles in volume every 7 seconds after it is applied. a. What is...
1. Urethane foam doubles in volume every 7 seconds after it is applied. a. What is the growth rate? b. If you initially apply 2 cubic inches of urethane, what will the volume be after 31 seconds? c. How many seconds would you have to wait until two cubic inches of urethane fills a 12 oz soda can? (A soda can has a volume of 21.6 cubic inches) 2. A biologist is researching a newly-discovered species of bacteria. At time...
If the FOV measures 450 μm and the cell being observed occupies about 20% of the...
If the FOV measures 450 μm and the cell being observed occupies about 20% of the diameter of the field of view, what is the size of the cell in micrometers? (Do not write the units in your answer)
Interconversion of prefed Sl units A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 19.38mm. What is the total width of a crystal in millimeters 10 molecules across? Write your answer as a decimal,
A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spherical air tank that measures 60.0 cm wide. The biologist estimates she will need 8100. L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres. Be sure your answer has the correct number of significant digits. ? Check
Modeling Exponential Growth and Decay A biologist recorded a count of 360 bacteria present in a culture after 7 minutes and 1200 bacteria present after 20 minutes. a. To the nearest whole number, what was the initial population in the culture? The initial population was around bacteria. b. Rounding to four decimal places, write an exponential equation representing this situation. B(t) = c. To the nearest minute, how long did it take the population to double? The doubling time of...
O GASES Solving applications of Boyle's Law Omar V A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spherical air tank that measures 87.0 cm wide. The biologist estimates she will need 7100. L. of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres. Round your answer to...
Model Exponential Growth and Decay (4.7.38-39) A biologist recorded a count of 300 bacteria present in a culture after 5 minutes and 1050 bacteria present after 28 minutes. a. To the nearest whole number, what was the initial population in the culture? The initial population was around 219 bacteria b. Rounding to four decimal places, write an exponential equation representing this situation. B(t) 10e 30t c. To the nearest minute, how long did it take the population to double? The...
A biologist places 4 thousand bacteria in a nutrient rich solution and monitors the rate of growth of the bacteria every 15 minutes. Use the table to find the best possible overestimate for the total amount of change in bacteria from 1 hour to 2 hours. Make sure to include units. I. Time in hours 0 .25 0.5 0.7 10 125 15 175 2.0 2.25 2.5 2.75 Rate of growth of bacteria in units 119 14 168 199 236 282...
1. Urethane foam doubles in volume every 7 seconds after it is applied. a. What is the growth rate? b. If you initially apply 2 cubic inches of urethane, what will the volume be after 31 seconds? c. How many seconds would you have to wait until two cubic inches of urethane fills a 12 oz soda can? (A soda can has a volume of 21.6 cubic inches) 2. A biologist is researching a newly-discovered species of bacteria. At time...
Most questions answered within 3 hours.
-
A 10.000 g sample of water contains 11.19% H by mass. what
should be the %H...
asked 3 minutes ago -
Consider an investment game among 2 players. Each player can
either invest,
i, or not invest,-i....
asked 1 minute ago -
The time taken to complete a particular task is normally
distributed with a standard deviation of...
asked 11 minutes ago -
we have heteroskedasticity in a regression when:
When the variance of error terms changes when an...
asked 20 minutes ago -
Explain some different types of fungi. State the different
divisions undergo by fungi.
asked 33 minutes ago -
The shortest time that 120 C can flow through a 20 A circuit
breaker without tripping...
asked 34 minutes ago -
A software design pattern is a general, reusable solution to a
commonly occurring problem, acting as...
asked 37 minutes ago -
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order...
asked 53 minutes ago -
The pitch (p) of a helix is defined as p = dn, in which n is...
asked 55 minutes ago -
Do you agree that the declining stock of social capital is the
blame for the failure...
asked 59 minutes ago -
A researcher is interested in whether coffee consumption helps
with performance on reading comprehension tasks. The...
asked 1 hour ago -
it has been estimated since the beginning of the human race that
about 133 metric ton...
asked 1 hour ago