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Evaluate :-5|1-3|+4|3-1| -5|-2|+4|2| -5 (2)+4 (2) -10+8 -2 Is this right?
1. 1 answer
2. 298 views
2: How might the Iroquois have been helpful in assisting the British troops in the surprise attack?a- the Iroquois likely had
1. 13 answers
2. 2,862 views
A flagpole at a right angle to the horizontal is located on a slope that makes an angle of 18° with the horizontal. The
1. 1 answer
2. 1,236 views
What is the change in ph after addition of 10.0 ml of 1.0 m sodium hydroxide to 90.0 ml of a 1.0 m nh3/1.0 m nh4+ buffer? [kb
1. 1 answer
2. 966 views
Methane (CH4) is the main component of natural gas. It is burned for fuel in a combustion reaction. The unbalanced combustion
1. 1 answer
2. 2,449 views
What is the pH of a weak acid solution that has an [H*] of 2.1×10^6 M?
1. 1 answer
2. 399 views
The sum of the interior angles of a regular polygon equals 1260 degrees. How many sides does a polygon have?
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2. 2,696 views
A person runs off a cliff. The person runs with a speed of 10 m/s and is moving to the right as he leaves the cliff. The cliff
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2. 649 views
What were the events in Germany, Russia, and Ireland after World War I?My history textbook does not discuss the question at all.
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2. 700 views
market competition pushed a price down toward its market-clearing level. Which of the following BEST describes they type of
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2. 660 views
explain the economic effects of a price floor at $8. Be sure to reference quantity, shortage or surplus, etc.
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2. 704 views
Popcorn and coke are complements because the are often enjoyed together. When the price of coke rises, what happens to the
1. 1 answer
2. 805 views
Analyze what happens to the market for cheeseburgers if the price of the cheese rises (cheese being the part of the cost of a
1. 1 answer
2. 1,086 views
Two blocks of identical mass are placed in water. One is made of aluminum, the other of wood. The wood block is noted and
1. 1 answer
2. 701 views
Two blocks of identical mass are placed in water. One is made of aluminum, the other of wood. The wood block is noted and
1. 1 answer
2. 877 views
A mass is attached to a horizontal spring and compresses the string by 10 cm (position A). when it is released, it bounces back
1. 1 answer
2. 469 views
A 10.0 kg box is placed on a ramp that is inclined at 30.0 degrees to the horizontal.Determine the force of friction required to
1. 1 answer
2. 1,675 views
A 12.0 kg object is on a surface that is inclined 30 degrees and the coefficient of friction is 0.65.Determine the force of
1. 2 answers
2. 823 views
two basketball players collide player 1 with a mass of 55.0 kg experiences a -15.6 m/s2 acceleration. if the player 2 has a mass
1. 1 answer
2. 595 views
1. What happens to the stack of books if the applied force exceeds the maximum static frictional force?2. What is the minimum
1. 1 answer
2. 836 views
Initially you have 204 g grams of solid thallium at is at its melting point of 304ºC .How many grams of liquid thallium will be
1. 1 answer
2. 578 views
A 34.0 kg block accelerates along a frictionless ramp that is inclined at 35 degrees.Determine the acceleration of the block.
1. 1 answer
2. 1,313 views
A 12.0 kg object is on a surface that is inclined 30 degrees and the coefficient of friction is 0.65.Determine the force of
1. 1 answer
2. 487 views
A plane with a mass of 4.50 x 10^3 kg accelerates on takeoff at 10.0 m/s2. What is the net force acting on the plane?
1. 1 answer
2. 1,099 views
Two basketball players collide. Player 1, with a mass of 55.0 kg, experience a -15.6 m/s2 acceleration. If player 2 has a mass
1. 1 answer
2. 642 views
(i can't upload an image so i have to explain the spectrum)My spectrum has peaks at 0.85 ppm (integration = 1.49) 1.2 ppm
1. 1 answer
2. 558 views
Temperature values are used to determine relative vapor pressure in compounds. Explain principles involved that allows
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2. 628 views
A lighthouse 2 miles offshore has a light that rotates once every 20 seconds. At what rate is the light traveling along the
1. 1 answer
2. 735 views
To determine the molecular weight of a liquid compound,1.56 grams of the compound is vaporized in a 0.555L container at 30ºC
1. 1 answer
2. 550 views
Question 16 options:A mixture of equal moles of He and Xe are in a plastic container at 25ºC and 874 mm pressure. If only He
1. 2 answers
2. 498 views
KClO3 decomposes according to the reaction below. How many grams of KClO3 are needed to produce 826ml of O2 at standard
1. 1 answer
2. 683 views
Please HelpSolve each equation for 0<x<2 pi 2cos^ 2 x +sins-1=0
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2. 422 views
Suppose k is a continuous function so that k(-2)=3 and k'(-2)= -4 .a. Use the given information to approximate the value of
1. 3 answers
2. 572 views
I am completely lost with this question. If 50 ml of 0.5M HCl is added to 800 ml of pure water, what will be the approximate pH
1. 2 answers
2. 404 views
10.1 Three uniform spheres with masses m1 = 6.0 kg, m2 = 2.0 kg ,and m3 = 4.0 kg are fixed at the positions shown in the
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2. 805 views
Choose four of the following questions to ask Moses, Jesus, and Muhammad:?Ok I choose the questions and I got the first and
1. 1 answer
2. 1,167 views
Assume the carrying capacity of the earth is 9 billion. Use the 1960s peak annual growth rate of 2.1% and population of 3
1. 1 answer
2. 2,327 views
What are some ways (at least two) that cells can increase their (Unicellular and multi-cellular organisms) surface area to
1. 0 answers
2. 537 views
What are some ways (at least two) that cells can increase their (Unicellular and multi-cellular organisms) surface area to
1. 0 answers
2. 487 views
If ln(x^2-15y)=x-5+5 and y(-4)=1 find Y prime(-4) by implicit differentiationthus the equation of the tangent line to the graph
1. 2 answers
2. 800 views
Determine the pH of a solution after 20.00 mL of 0.4963 M HI has been titrated with 12.64 mL of 0.5174 M NaOH.
1. 1 answer
2. 446 views
Consider the titration of 20.00 mL of 0.1728 M Ascorbic acid (Ka = 7.9 x 10-5) with 0.4329 M NaOH.Match the following regions in
1. 2 answers
2. 1,000 views
Determine the pH of a solution after 20.00 mL of 0.4963 M HI has been titrated with 12.64 mL of 0.5174 M NaOH.
1. 1 answer
2. 498 views
Suppose a student obtained a 0.15g of cruse salicylic acid. How much water would be needed to just dissolve it at 75 degrees
1. 1 answer
2. 845 views
All things considered, it seems reasonable that injecting a small dosage of drugs in animals is acceptable. This practice could
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2. 463 views
All things considered, it seems reasonable to accept that injecting a small dosage of drugs in animals as it could help and
1. 16 answers
2. 479 views
A biologist found that 20% of a population of bats are brown, which is recessive. assuming the population shows Hardy-Weinberg
1. 0 answers
2. 614 views
The femoral artery carries blood to the leg and has a diameter of 12.5 mm.What is the resistance in a column of blood that is
1. 1 answer
2. 1,452 views
A Gallup poll asked two questions:1. Do you favor a tax cut or “increased spending on other government programs”? Result:
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2. 583 views
When 0.010 moles of Zn(s) reacts with 30.0 mL of 1.0 M HCl, the H2 gas produced is collected in a 1.0 L flask at a temperature
1. 3 answers
2. 851 views
When 0.010 moles of Zn(s) reacts with 30.0 mL of 1.0 M HCl, the H2 gas produced is collected in a 1.0 L flask at a temperature
1. 1 answer
2. 853 views
An object is given two initial velocities, one that has a magnitude of 60.0 ms-1 and points along a direction that is 35.0°
1. 2 answers
2. 523 views
A plane travels 3 km due north, then 5 km due northeast. Represent these two displacements graphically and determine the
1. 1 answer
2. 1,245 views
Calculate the mass of solid AgNo3 that can be added to 2.0 L of 0.10M K2CrO4 solution in order to just start precipitation?
1. 2 answers
2. 1,067 views
The box is being pulled by a roope across a level floor as shown in the diagram. The box is accelerating at 1 m/s2, the
1. 3 answers
2. 1,521 views
you are skiing down a slope angled at 30 degrees to the horizontal. Your acceleration is 2m/s^2. what is the coefficient of
1. 2 answers
2. 719 views
A toy store has found that 30% of its customers spend more than $40 each visit. What is the probability that the next two
1. 1 answer
2. 549 views
Last one! Thankyou for the help thus far...calculate the KE in kJ of 9.100 x 10^5 atoms of silver moving at 1800. km/hr. ... the
1. 3 answers
2. 399 views
I'm not sure with this conversion...getting 9.843x10^4 ft/min to m/s ? How do I get to m/s using a specification conversion
1. 1 answer
2. 425 views
calculate K.E in Joules of a baseball w/ a mass of 237.2 cg moving at 85.00 mph
1. 3 answers
2. 415 views
The dipole moment of a water molecule is 6.37E-30 Cm. What is the electric potential's magnitude 1.58 nm from a water molecule
1. 0 answers
2. 669 views
What can people do to reduce global warming?
1. 1 answer
2. 627 views
what causes clouds to form?
1. 1 answer
2. 696 views
Which of the following statements cannot be assumed for the vapourization of a liquid?A)Enthalpy is positive B)Entropy is
1. 1 answer
2. 435 views
Specify the concentration of each ion in solution for the following:.10 M AlCl3 (aq) and .15 M (NH4)2SO4 (aq)
1. 3 answers
2. 489 views
21.7 mL of 1.15 M KOH (aq) was required to titrate 25 mL of H2SO4 (aq) as follows:H2SO4 (aq) + 2KOH (aq) --arrow-- K2SO4 (aq) +
1. 1 answer
2. 469 views
a periscope is an optical instrument made of two plane mirrors inclined at an angle 45 with respect to the axis of the tube. an
1. 2 answers
2. 628 views
I have some answers for my spanish class. I was hoping the grammar could be checked.Antes de estudiar esponal había dormido.
1. 1 answer
2. 518 views
Consider a one step reaction. Which of the following does not describe the activation energy of the process?The minimum amount
1. 0 answers
2. 667 views
Benzene (C6H6) has a normal freezing point of 5.50oC and a density of 0.88 g/mL. When 1.28 g of naphthalene (C10H8) is dissolved
1. 1 answer
2. 1,601 views
If I have 2.5 amylase stock solution, 2.5 PBS Buffer, and final amylase concentration of 25 [ug/ml] , how do you calculate the
1. 1 answer
2. 543 views
A baseball is thrown at 40 m/s. Jose Bautista hit it back in the opposite direction at a speed of 65 m/s. The ball is in contact
1. 1 answer
2. 632 views
f(x+h)−f(x)=8hx^2+2hx+2h^2x−3h^2−4h^3.Find f′(x).
1. 1 answer
2. 438 views
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the
1. 2 answers
2. 930 views
A boy kicks a rock off a cliff with a speed of 15.5m/s at an angle of 53.5° above the horizontal. The rock hits the ground
1. 1 answer
2. 4,690 views
The density of water at 60 degrees C is 0.98338 g/mL. What is the mass of 37.48 mL of water in a graduated cylinder (not
1. 0 answers
2. 414 views
Explain the meanings of Mendel’s principle of segregation and principle of independent assortment. Under what circumstances
1. 0 answers
2. 744 views
Evaluate the expression given that cosine a=4/5 with 0<a<pi/2 and sin b=-15/17 with 3pi/2< b<2pi
1. 1 answer
2. 513 views
An auditorium measures 43.0m × 18.0m × 15.0m. The density of air is 1.20 kg/m3. What is the volume of the room in cubic feet?
1. 2 answers
2. 729 views
F(x, y) represents a velocity field of a fluid over a surface S defined by z = 6 − 3x − 2y. If the magnitude of the velocity
1. 0 answers
2. 443 views
a photocopier increase the sides of a square in a ratio of 5:4. what percentage has the size increased?
1. 2 answers
2. 737 views
Hi , I have this question and I do not know what steps to follow. Please help guide me. It will be really appreciated.Calculate
1. 0 answers
2. 442 views
Mr. Jones makes 3% commission on his sales of widgets. At a different company,Mr. Smith makes 5% commission selling the same
1. 1 answer
2. 569 views
If two pounds of meat will serve 5 people, how many pounds will be needed to serve 13 people?
1. 6 answers
2. 4,572 views
How do you find the constant rate of change?
1. 3 answers
2. 465 views
Under ideal conditions, a population of rabbits has an exponential growth rate of 11.8% per day. Consider an initial
1. 1 answer
2. 782 views
Okay so my lecturer has this in our slides and there are no notes just a heading saying speaciation, I have tried google and
1. 2 answers
2. 473 views
Juan has three rain sticks measuring 8 inches, 6 inches, and 12 inches each. what is the least common multiple of 8, 6, and 12?A
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2. 659 views
If y=tanu, u=v-(1/v), and v=lnx. What is the value of dy/dx at x=e?
1. 3 answers
2. 7,243 views
If x=t^3-t and y=√(3t+1), then dy/dx at t=1 is what?
1. 1 answer
2. 319 views
If f(x)=6x^3-4x then d/dx(f(lnx)) would be what equation?
1. 1 answer
2. 329 views
The tangent line to the graph of y=f(x) at both x=3 and x=4 is y=-x+5. Which of the following statements must be true?The
1. 1 answer
2. 2,464 views
What size volumetric flask do you need to dilute a 0.150M NaOH to 0.390M if you pipette 1500ml?
1. 1 answer
2. 349 views
In The Darkest Part Of The Mansion, Where The Winds Are Set To High, A Man Fears His Presents, Where The Cotton Lies, Where Am
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2. 298 views
In Cl2 + 2KBr -> 2KCl and Br2 produce that brown yellow effect?
1. 1 answer
2. 509 views
You are given five identical resistors each of resistance r. How can you arrange all these resistors (in series, in parallel, or
1. 2 answers
2. 1,422 views
The heights of women in a certain population have a Normal distribution with mean 64 inches and standard deviation 3.5 inches.
1. 1 answer
2. 1,503 views
Is T associated with E1 or E2? I think it is E2.
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2. 264 views
Sample A:Solid appearance:crystals, solids, white Solid Conductivity:no Solubility: soluble Solution appearance:substance
1. 0 answers
2. 590 views
When you try to leave your room you learn that the only door out is locked. Assuming there is no air flow into the room (air
1. 1 answer
2. 662 views

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