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A proton accelerates from rest through 1500 volts. the proton then enters a region of space where the magnetic field is 0.3 tesla (and this field is perpendicular to the velocity). calculate the rad
Logically, which of these should cast th emost doubt on the relationships depicted by an evolutionary tree?
The unicellular spores of the fern Ceratopteris richardii are about 100 um in diameter. Calculate the surface-area-to-volume ratio of a cube whose sides are 100 um in length to approximate the surface
Was the interior of the amoeba homogeneous or was there an indication of various organelles?
What is the name of the distance for the average amount of DNA per nucleosome in chromatin?
Why should microbiologists wait until a liquid medium containing agar has cooled to 45 degrees Celsius before pouring the medium into an empty Petri dish?
What condition is generate in the thylakoid space from the accumulation of hydrogen ions?
An electron moves at 2×106 m/s through a region in which there is a magnetic field of unspecified and magnitude 7.4×10-2T a)what is the largest possible magnitude of the acceleration of
A container has a vertical tube, whose inner radius is 12.00 mm, connected to it at its side. An unknown liquid reaches level A in the container and level B in the tube-level A being 5.0 cm higher t
Briefly describe how the process of translation is started.
A 0.25 harmonic oscillator has a total oscillation energy of 9.9 J. If the oscillation amplitude is 20.0 cm, what is the oscillation frequency?
How does the Environment Influences the Body Plans of Organisms. need a 500 word essay with this title
The process of what produces a new copy of an organism's genetic information, which is passed on to a new cell.
1. All genes are not "on" all the time. Using the metabolic needs of E. coli, explain why not.2. What are the two main ways of controlling metabolism in bacterial cells?
A mammal uses only 1 to 2 percent of its energy in ventilation (breathing air in and out) while a fish must spend about 15 percent of its energy to move water over its gills. Explain this huge differe
What is true about exergonic reactions? What is true about exergonic reactions?
Choose one part of the photo-electric experiment that cannot be explained by assuming that light is a wave. Why do we need the concept of light as a particle?
A test tube contains starch, pancreatic amylase, and water. The buriet is negative. After 30 minutes, the Benedict's test is positive. What substance is present?
You are going to collect data to represent the variation of current as a function of the total resistance of the circuit. To do that, you will remove the bulbs one at a time until there is onlyone
What are the 5 subfields of biological anthropology
Find Vertical Velocity in ft/min for an aircraft in a 200 KTAS climb with a climb angle of 10 deg (assume no wind)
Describe four organelles or structures that all eukaryotic cells have in common. In addition, describe two eukaryotic cell features that would be found only in autotrophic cells.
What is the difference between azygos and hemiazygos
A cylindrical container of inside diameter 0.6 m is filled with gasoline to a depth of 2 m. What is the mass of the gasoline?
What does it mean when a nerve cell is "at rest"?