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The intake to a hydraulic turbine installed in a flood control dam is located at an elevation of 10 m above the turbine exit. what is the mass flow rate fo water, in kg/s
Viruses are the ultimate scavenger-a necessary consequence of their small genomes. Wherever possible they make use of the cell's machinery to accomplish the steps involved in their own reproductions
a. a mutation that makes it impossible to deoxyribonucleotides to bind to the polymerase active site of DNA polymerase I b. a mutation in the coding sequence of DnaA in E. coli.
A species of tree has a very large genome consisting of 2.0x10^10 base pairs of DNA per diploid genome. Assume that each diploid cell contains 10 chromosomes of similar length.
In mapping a large plasmid you notice that EcoRI yields 3 bands, HindIII yields four bands and you can detect at least 6 bands on the gel for HindIII/EcoRI digestion.
A 2.8-cm-diameter parallel-plate capacitor has a 2.4mm spacing. The electric field strength inside the capacitor is 1.4×105V/m. How much charge is on each plate
A car is traveling along a straight road at a velocity of +39.0 m/s when its engine cuts out. For the next ten seconds the car slows down, Find the velocity of the car at the end of the initial ten-s
A uniform ladder of length l an weight 100 N rests against a smooth vertical wall. The coefficient of static friction between the bottom of t ladder and the floor is 0.5.
A beam of 16MeV deuterons (m=2mp) from a cyclotron falls on a copper block. The beam is equivalent to a current of 15 microA, At what rate do deuterons strike the block
For the design include the independent variable, the dependent variable, two possible controls, and 2 units of measurement the researcher should use and what the unit should be used to measure.
A basketball is thrown horizontally with an initial speed of 4.90 m/s. A straight line drawn from the release point to the landing point makes an angle ? = 27.0° with the horizontal. What was th
A ball rolls off a table and falls 0.81 m to the floor, landing with a speed of 5.5 m/s. What initial speed must the ball have if it is to land with a speed of 6.3 m/s
A mouse breeder has a strain of black mice that normally breed true and produce only black mice. Occasionally, however, a brown mouse or two has appeared in litters of some of the mice.
TFIID (In reference to TBP-associated factors, RNA pol II)is a complex of multiple proteins. It is considered a basal factor and is pretty much always going to be binding to initiate transcription i
On a hot summer day a young girl swings on a rope above the local swimming hole. how high above the water was she when she let go of the rope
A soccer ball is kicked with an initial speed of 9.8 m/s. After 0.200 s it is at its highest point. What was its initial direction of motion
A hot air balloon decends toward the ground with a velocity of (1.6 m/s)y hat. A champagne bottle is opened to celebrate takeoff, How long does the cork remain in the air
A seed shoots out from the pod with the speed of 2.8 m/s but with a direction of motion 30° below the horizontal. What horizontal distance does it cover during its flight
A uniform magnetic field passes through a horizontal circular wire loop at an angle 15.1° from the normal to plane of the loop. Find the magnetic flux through the loop
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 4.40 104 s. What is the speed at which the satellite travels
What is the term for organisms that obtain energy and nutrients (building blocks for new molecules) by consuming organic material produced by other organisms
A patient looses 1 liter of blood and is waiting for a blood transfusion to arrive from the blood bank. Would it be better to administer 5% dextrose or 0.9% sodium chloride to the patient. Why.
Anemometers (pictured) are used to measure wind speeds. Wind striking the cups causes the assembly to rotate; a gauge measures the frequency of this rotation and translates the data into wind speed.
A lamp that plugs into a 120V wall socket can use either a 60W or 100W bulb. Which bulb has the higher resistance
There are three main types of coat protein associated with transport vesicles. What is the general purpose of these coat proteins? and where would each of the three types be found in the exocytotic