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Haley

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Calculate the increase in length of a 250.00 meter long concrete bridge if it's temperature increases from 10.0°C to 39.0 °C?
1. 1 answer
2. 480 views
Calculate the increase in length of a 250.00 meter long concrete bridge if it's temperature increases from 10.0°C to 39.0 °C?
1. 3 answers
2. 716 views
A 12,000 kg truck moving to the right at 22 m/s collides with and sticks to a 1200 kg car moving to the right at 16 m/s. What
1. 1 answer
2. 599 views
And Astronaut wearing an environment suit has a total mass of 130 kg. What is his weight on earth?What would his weight be on
1. 1 answer
2. 531 views
And Astronaut wearing an environment suit has a total mass of 130 kg. What is his weight on earth?What would his weight be on
1. 2 answers
2. 716 views
Calculate the increase in length of a 250.00 meter Long concrete bridge if its temperature increases from 10.0°C to 39.0°C?
1. 1 answer
2. 623 views
Dave needs to get groceries from the store, which is a distance of 1.7 km east of his house. Dave rides his bike to the store at
1. 2 answers
2. 6,522 views
The North American and European continents are moving apart at a rate of about 3.0 cm/yr. At this rate how many years will it
1. 1 answer
2. 1,312 views
(2y-3)(3y-2)A. 6y2-13y+6 B. 6y2-13y-6 C. 6y2+13y-6 * D. 6y2+13y+6 *my answer (btw the 2 next to 6y is an exponent) I think that
1. 3 answers
2. 1,961 views
A 1.76g sample of quinone, C6H4O2, is burned in a calorimeter whose total heat capacity is 7.854 kJ/C. The temperature of the
1. 1 answer
2. 763 views
What is the equation of the line that passes through the point (-2,3) and that is perpendicular to the line represented by
1. 3 answers
2. 1,130 views
In a chain mechanism, a reaction in which two free radicals combine to form a stable molecule would be called theA) initiation
1. 0 answers
2. 697 views
If the reaction 2NO + 2H2 --> N2 + 2H2O occurred in just a single step, the overall order of the reaction would beA) 1 B) 2 C) 3
1. 0 answers
2. 639 views
Explain why the solubility of KHTar in 0.100 M NaCl solution differs from that in pure water?Explain why the solubility of KHTar
1. 8 answers
2. 1,765 views
Two trains are traveling opposite directions. One train travels at a speed of 90 mph. The second train travels at a speed of 95
1. 2 answers
2. 759 views
This regular octagon has a side length 15.0cm. Determine the distance from one vertex to the opposite vertex, measured through
1. 2 answers
2. 2,113 views
Elephants communicate via infrasound, at frequencies as low as 11 Hz that can travel up to 9 km. The intensity of these sounds
1. 0 answers
2. 589 views
Assume that there is no friction between m2 and the incline, that m2 = 1.8 kg, m1 = 1.4 kg, the radius of the pulley is 0.10 m,
1. 0 answers
2. 521 views
In a constant-pressure calorimeter, 55.0 mL of 0.310 M Ba(OH)2 was added to 55.0 mL of 0.620 M HCl. The reaction caused the
1. 1 answer
2. 1,666 views
What are the answers for chapter 9? Final Check: Money Problems
1. 3 answers
2. 3,179 views
Will someone please check my answers as I need lots of help in science.1. Which of the following is an example of matter? A.
1. 6 answers
2. 1,159 views
Which of the following reactions have a positive ÄSrxn? Check all that apply.A(g) + B(g)--> C(g) 2A(g) + B(g)--> 4C(g) A(s) +
1. 4 answers
2. 692 views
Which of the following reactions have a positive ÄSrxn? Check all that apply.A(g) + B(g)--> C(g) 2A(g) + B(g)--> 4C(g) A(s) +
1. 0 answers
2. 567 views
Which of the following reactions have a positive ÄSrxn? Check all that apply.A(g) + B(g)--> C(g) 2A(g) + B(g)--> 4C(g) A(s) +
1. 1 answer
2. 876 views
A pair of blocks of the mass M =30.7 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of
1. 0 answers
2. 580 views
A pair of blocks of the mass M =30.7 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of
1. 0 answers
2. 663 views
A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush
1. 0 answers
2. 795 views
Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry,
1. 0 answers
2. 749 views
The three angles of a triangle are 105°,25°,50° .In what ratios are the sides?
1. 4 answers
2. 381 views
The three angles of a triangle are 105°,25°,50° .In what ratios are the sides?
1. 2 answers
2. 709 views
A $15,000 debt is to be amortized in 12 equal semiannual payments at an annual interest rate of 11% on the unpaid balance.
1. 1 answer
2. 743 views
Trace the path of food from the mouth to the large intestine and what occurs at each structure.Anything would be helpful because
1. 1 answer
2. 625 views
When a cell is infected with a virus, what is produced for future protection?i thought it was good bacteria but i don't think a
1. 1 answer
2. 494 views
How do you find the excluded value if there is another variable or number in the denominator? Such as the equation 12(a) over a
1. 1 answer
2. 550 views
In a study about kindergarten readiness, which one of the following was true?A. Group participation skills were viewed as
1. 5 answers
2. 688 views
Teachers usually ask more of this type of question even if it is NOT recommended:convergent. B. divergent. C. open-ended. D.
1. 3 answers
2. 904 views
2 NO(g) + O2 (g) <==> 2 NO2 (g)Given that Kp=7.96×1012 for the reaction above and the following starting conditions: Initial
1. 1 answer
2. 669 views
Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above
1. 4 answers
2. 4,040 views
help with worksheets
1. 0 answers
2. 327 views
What number must be added to make a perfect square trinomialx^2+(8/5)x
1. 1 answer
2. 725 views
Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending $2.00. Write an equation in standard
1. 1 answer
2. 546 views
Write an equation for the amount of money, A, that we would have if we invested $25,000 at 6% per year for 5 years compounded
1. 1 answer
2. 396 views
Write an equation for the amount of money, A, that we would have if we invested $2000 at 8% interest for 10 years compounded
1. 1 answer
2. 452 views
Solve the System2x-8y=20 3x-12y=30
1. 1 answer
2. 609 views
A 50 gallon barrel plumb full of water springs a leak in the bottom and leaks at a constant rate of two gallons per minute.
1. 1 answer
2. 646 views
A company that bought a machine for $30,000 wants to depreciate its entire value equally over the next ten years. Write an
1. 1 answer
2. 553 views
Change the equation 5x+3y=60 to slope-intercept form.
1. 1 answer
2. 653 views
Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Write an equation
1. 3 answers
2. 477 views
what is the cube root of -125x^6
1. 1 answer
2. 724 views
Suppose 1.624g of salt FeSO4 is placed in a 250mL flask to which 50mL of water and 10 mL of 3M H2SO4 are added. How many mL of
1. 0 answers
2. 427 views
Suppose 1.624g of salt FeSO4 is placed in a 250mL flask to which 50mL of water and 10 mL of 3M H2SO4 are added. How many mL of
1. 3 answers
2. 414 views
if kelly gave 1/3 of a pizza to holly and 1/5 to diana, how much did she have left?
1. 4 answers
2. 1,158 views
write a numerical expression to represent the phrase Half a number increased by 34
1. 1 answer
2. 547 views
a carload of fraternity brothers leave their house for a long weekend trip. three hours later a second carload of brothers
1. 1 answer
2. 793 views
A person invested 20,000$ in stocks and bonds. Her investment in bonds is 5,000$ more than half her investment in stocks. How
1. 2 answers
2. 800 views
What is the physical journey like in the novel "Murder on the Orient Express" and how does it add to the meaning?
1. 1 answer
2. 1,163 views
if 500 g of mgcl2 are produced in the above reaction how many l of h2 are produced
1. 1 answer
2. 365 views
Why was the Fugitive Slave Act so controversial? (3 points)It required all Americans to return runaway slaves to their owners,
1. 6 answers
2. 2,413 views
Sorry, theres another one my son is stuck on.
1. 2 answers
2. 359 views
Can somebody help with my son's study guide? Thank you!What did the Supreme Court cases and the ultimate outcome for the
1. 7 answers
2. 668 views
what is .5 cubed?
1. 1 answer
2. 322 views
I have to write a 1 paragraph summary on how Alfred the Great defines, and explains irony, and how is Alfred the Great an
1. 0 answers
2. 485 views
Imagine that you are hosting a group of exchange students next term. You are responsible for welcoming the students to campus
1. 3 answers
2. 682 views
The lenght of each of the two sides of an isisceles triangle is 10 meters. The angle between the two congruent sides is x. find
1. 1 answer
2. 704 views
The lenght of each of the two sides of an isisceles triangle is 10 meters. The angle between the two congruent sides is x. find
1. 1 answer
2. 597 views
if someone could show me how to solve this problem1) cos(345°)
1. 1 answer
2. 436 views
#1 cos x+sec x=2#2 (1+tan x)^2= 2 tan x+2 #3 cos^2x-sin^2 x+1=cos x please show all work & thanks
1. 1 answer
2. 1,038 views
cos^2x-sin^2 x+1=cos x
1. 2 answers
2. 387 views
(1+tan x)^2= 2 tan x+2please show all work
1. 1 answer
2. 301 views
cos x+sec x=2if you could please show all work
1. 0 answers
2. 283 views
the average mass of a kernel of popcorn is 0.15g? what would be the mass of one mole of kernels ?
1. 1 answer
2. 781 views
I've had a major brain fart..How do you get the inverse function of:f(x)= (2x-3)/(x+1) i know the answer but i don't know how to
1. 1 answer
2. 378 views
1)tan^2x=3 ?2)tan x sin^2x=tan x ? 3)2cosx sinx - cos x=0
1. 1 answer
2. 595 views
two observers 3 miles apart and facing each other find that the angles of the elevation of a balloon in the same vertical plane
1. 1 answer
2. 1,522 views
a lifeguard sits on the lifeguard stand that is about eight feet high.he suddenly notices that a swimmer is struggling in the
1. 1 answer
2. 754 views
two lighthouses A and B are positioned along the coast.A ship is positioned 30 miles from lighthouse A and 40 miles from
1. 1 answer
2. 814 views
Your body's reaction to the stress you have been under for the past two weeks is that you have become more tired and now have a
1. 1 answer
2. 524 views
What kind of memory is involved in remembering how to tie shoes?Semantic Episodic Procedural Priming Prospective
1. 2 answers
2. 508 views
Your body's reaction to the stress you have been under for the past two weeks is that you have become more tired and now have a
1. 0 answers
2. 691 views
A ball rolls off a tabletop 0.900 m above the floor and lands on the floor 2.60 m away from a point that is directly under the
1. 1 answer
2. 738 views
8y+20/8 reduced to the lowest term
1. 1 answer
2. 338 views
A sample of helium occupies 1521 mL at 719 mmHg. Assume that the temperature is held constant and determinea) the volume of the
1. 2 answers
2. 984 views
A 1.8 tall basketball player attempts a goal11 from the basket that is 3.05 high.If he shoots the ball at a 54 ◦ angle, at
1. 1 answer
2. 740 views
If M is the mass of one body and m is the mass of another body, and their separation is d, then the gravitational force between
1. 0 answers
2. 425 views
A projectile is launched at an angle of 64.3 degrees with the horizontal (x axis) at some unknown velocity. After 4 seconds, the
1. 0 answers
2. 507 views
For adults, which ranges below reflect an accurate BMI category?A. If your BMI is 30 or higher, it falls within the overweight
1. 6 answers
2. 920 views
x^3 + 4x^2 - 3x - 2 = 0
1. 1 answer
2. 293 views
Prove algebraically that the line joining the midpoints of the nonparallel sides of a trapezoid is parallel to the bases of the
1. 1 answer
2. 566 views
A certain isotope has a half-life of 12 hrs. How long will it take for 100 ƒÝgr to decay into only 25 ƒÝgr?
1. 1 answer
2. 483 views
The element Niobium (Z=41) is a transitional metal. It has two valences 3+ and 5+. Using an orbital filling diagram, predict the
1. 1 answer
2. 634 views
An archer puts a 0.26-kg arrow to the bow-string. An average force of 200 N is exerted to draw the string back 1.4 m.(a)
1. 3 answers
2. 781 views
A 15.0-kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 1961 J by the time the
1. 1 answer
2. 7,117 views
A 4.00 103-kg car has a speed of 9 m/s. The car then hits a tree. The tree doesn't move and the car comes to rest.(a) Find the
1. 1 answer
2. 611 views
In the 1950s, an experimental train that had a mass of 3.30 104 kg was powered across level track by a jet engine that produced
1. 1 answer
2. 1,253 views
If 5.6 mol of CuCl2 reacts with 10.2 mol of NaNo3, what is the limiting reagent?
1. 1 answer
2. 489 views
A charge of 3.0 nC and a charge of 5.8 nC are separated by 53.40 cm. Find the equilibrium position for a -4.7 nC charge.
1. 1 answer
2. 574 views
I'm writing a poem and it requires me to list reasons on what you want your significant other to do to make you happy.SEEMS EASY
1. 6 answers
2. 434 views
It is found that an unknown gas has a density of 2.5 times that of Oxygen gas of the same Temperature and Pressure. What is its
1. 1 answer
2. 652 views
Suppose that 1.00 g of rubbing alcohol (C3H8O) evaporates from a 57.0g aluminum block If the aluminum block is initially at 25
1. 1 answer
2. 812 views
How much heat (in Kj ) is required to warm 10.0g of ice, initially at -11.0 C, to steam at 112.0 C?
1. 1 answer
2. 870 views

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