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A negative charge of -2.0 10-4 C and a positive charge of 9.0 10-4 C are separated by 0.26 m. What is the force between the two charges?
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Urinary and Digestive Systems Describe the structure of the nephron and how it is related to the vasculature. Glomerular filtration rate is...
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A stone is thrown at an angle of 30.0 above the horizontal from the top edge of a cliff with an initial velocity of 17 m/s.
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what is disinfectants; ways controlling growth of microorganisms, dintinguish between disinfectants ,antiseptics and sterization.
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Laura, whose mass is 35 kg, jumps horizontally off a 55 kg canoe at 1.5 m/s relative to the canoe. What is the canoe's speed just after she jumps?
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For the reaction 2 H 2 O 2 (l) 2 H 2 O(l) + O 2 (g) G = -228.6 kJ and H = -196.0 kJ at 259 K and 1 atm.
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The sound intensity level at a rock concert is 103 dB, while that at a jazz fest is 72. Determine the ratio of the sound intensity at the rock...
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At insects from rotting cactus pads E Cactus Finches and Cactus Reproduction Finches can damage flowers by destroying stigmas Damaged stigmas cant be...
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In a proton linear accelerator, protons are accelerated to have a kinetic energy of 450 MeV. What is their relativistic momentum?
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Imagine the following scenario. You have a U-shaped tube with a selectively permeable membrane that allows water to pass but not solutes.
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Hi can someone please help me with this??
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A 200 , 47.0-cm-diameter turntable rotates on frictionless bearings at 70. A 24.0 block sits at the center of the turntable.
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Punnett Squares?
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How does complementary base pairing facilitate DNA replication and the processes of transcription and translation?
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How is this the exam from Fall 2013 if we have not taken it yet and he changed the textbook?
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The damage done to a host cell by a virus may include: Shutting down the cell's metabolism Destruction of the cell's membrane Production of toxins...
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Biologists have long been aware that the defunct kingdom Protista is paraphyletic. Which of these statements is both true and consistent with this
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An object is placed 23.6 cm in front of a convex mirror of focal length 50 cm. Note: Do convex mirrors have a positive or negative focal length? What...
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Please explain to me why muscles cannot sustain a contraction?
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In the electron configurations for Cr and Cu+, why is the 4s orbital not filled before going to the 3d?
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In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is...
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Which of the following is a strong acid?
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Which of the following is true of the intermolecular attractions in liquids?
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300-kg sample of nitrogen gas (diatomic molecules, mN2 = 4.652 1026 kg) in a chamber fitted with a piston undergoes an isothermal expansion from...
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Question 18.091 Chloroform, formerly used as an anaesthetic and now believed to be a carcinogen, has a heat of vaporization H vaporization = 31.4 kJ...
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In what form are the vitamins riboflavin, thiamine, niacin, and pantothenic acid needed by the pyruvate dehydrogenase complex?
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A wave traveling along the x axis is described mathematically by the equation y = 0.17sin(3.1t + 0.55x), where y is the displacement (in meters), t...
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The Abuse of ADHD Medications Among College Students Attention Deficit Hyperactivity Disorder is a condition that has its root cause in the nervous
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A 529.1-g sample of an element at 187C is dropped into an ice-water mixture; 115.1 g of ice melts and an ice-water mixture remains. Calculate the...
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Briefly explain the difference between E-LTP and L-LTP. What are the cellular events that differentiate them?
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Describe the presynaptic mechanism that underlies mossy fiber LTP?
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Describe the process of NMDA dependent LTP. Be sure to include both short and long term mechanisms mediating this phenomenon. Describe the three...
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How are the disease caused by Clostridium tetanus and Clostridium botulinum similar and how are they different?
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Use the bond dissociation energies in Table 8.
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the concentration of the appetite regulating hormone ghrelin is about 1.3 *10-10M,in a fasting person.How many molecules of ghrelin are in 1L of
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1. Compare and contrast class I and class II CRP-binding sites in promoters 11. True or False?
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Transcriptional control in which a repressor protein prevents a gene from being expressed is ___________ control. negative 16.
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East Asia can be described as the world's economic powerhouse. Undoubtedly, a good percentage of your personal items were manufactured in South...
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The engine weighs 4,500 newtons and it is lifted 1.5 meters up by the block and tackle system. 1) What is the work done by the block and tackle
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A confiscated white substance suspected of being cocaine was purified by a forensic chemist and subjected to elemental analysis. Combustion of a...
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When comparing results with your classmates, you find that the group assigned to test apple juice recorded a negative result for Benedict's test.
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A student standing on a stationary skateboard tosses a textbook with a mass of mb = 1.55 kg to a friend standing in front of him.
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Ethanol ({\rm C_2H_5OH}) boils at 78^\circ {\rm C}. Its density is 0.789 {\rm g/mL}. The enthalpy of vaporization is 38.56 {\rm kJ/mol}. The specific...
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What is the osmotic pressure of 0.1 M aqueous urea (CON2H4) at 30 C?
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Which of the following is NOT a biologically active polymer?
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//news.sciencemag.org/biology/2009/10/case-closed-famous-royals-suffered-hemophilia topic:
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Brett uses a rope and pulley to lift a 75 kg sack 2.0 m onto a truck. He pulls downward on the rope with a force of 2.5 x 10^3 N, what is the...
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Horn Sporophytes are horn-shaped. Horn Possess Gemmae. Can undergo sexual reproduction. Mosses What is the synapomorphy of hornworts, mosses and
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In the ionic compound with the general formula M 2 X 3 , the likely charge on X is?
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Assume your hybrid car gets 38.0 miles per gallon (mpg) and the current price per gallon of regular, unleaded gasoline is $2. The car's gas tank...
