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Suppose you have been provided a urine sample from a patient and asked to perform standard plate count. You decide to serially dilute the urine sample six times and plate 0.1ml of the diluted samples on to corresponding six plates. Upon incubation, you find fourth plate with 200 colonies. Answer the following questions based on the given information:
-Give the dilution factor for each of the six tubes. -Give the dilution factor for the fourth plate you'll be using to count colonies. -Calculate the CFU based on the given information.
A stone is thrown with an initial speed of 12 m/s at an angle of 30 degrees above the horizontal from the top edge of a cliff. how far does the stone travel horizontally
The sun is in the sky at an angle of 22 degrees from vertical. You’ve built a column exactly 12.0 meters in height. You stand on the ground at the end of the column’s shadow. (THIS is where the concepts of sin, cos, and tan originally came from.....)..
A platinum resistance thermometer has resistances of 210 Ω when located in a 0oC ice bath and 240.8 Ω when immersed in a crucible containing a melting substance. Find what is the melting point of this substance
What everyday technology depends on understanding Einstein's Theory of Relativity? Explain how.
A rescue helicopter lifts a 85 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2, How much work is done by the person's weight
a projectile is fired with an initial velocity of 88ms at an angel of 42 degrees above horizontal. at the projectiles
A box with a mass of 8 kg is lifted (without acceleration) through a height of 9 m, in order to place it upon the shelf of the closet.
An underwater scuba diver sees the sun at an apparent angle of 45.0 degrees above the horizontal. What is the actual elevation angle of the sun above the horizontal
All atoms of an element have the same Select one: a. mass number b. atomic number c. number of isotopes d. number of neutrons Which particle is the least massive? Select one: a. proton b. electron c. nucleus d. neturon An electron is a particle with ..
a cylindrical container 1.39 m tall contains mercury to a certain depth d. the rest of the cylinder is filled with
Slamming on the brakes, a driver decelerates her car from 25.0 m/s to 15 m/s in 3.5 s. Find her average speed assuming the acceleration was unifrom.
A solid disk of mass M= 2.0 kg and radius R= 0.25 m rotates at an angular velocity of 0.50 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
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