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How do scientists explain the fact that some landforms that are far apartand separated by oceans appear to be related?
1. 9 answers
2. 1,653 views
Consider two equally sized balloons at room temperature, one filled with oxygen gas and one filled with an unknown gas. If the
1. 1 answer
2. 1,144 views
If 2.00 g of element G reacts with 5.00 g of element M to produce 7.00 g of a compound with the formula G3M2, what is the atomic
1. 2 answers
2. 579 views
How do I solved=ut+(1/2)at^2
1. 1 answer
2. 403 views
a board of 4 members is going to be formed from the 30 students of a class. The board is formed of a president a vice president
1. 1 answer
2. 511 views
four girls bought each a swimsuit and decided to borrow among themselves. How many possible ways can they dress up knowing that
1. 1 answer
2. 582 views
an anagram of a word is obtained by permuting its letters.a-how many anagrams does the word "MAIRE" have b-Same question for the
1. 1 answer
2. 638 views
in how many different ways can 3 boys and 2 girls sit on a bench?in how many different ways can they sit knowing that the boys
1. 1 answer
2. 785 views
find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made and each
1. 2 answers
2. 1,219 views
will a heavy metal spring launch a baseball 7 feet in the air with 5 pounds of preasure
1. 1 answer
2. 381 views
Math club purchased 3 adult tickets and 12 student tickets for $262.50. Physics club purchased 4 adult tickets and 8 student
1. 2 answers
2. 528 views
A bird watcher meanders through the woods, walking 0.744 km due east, 0.925 km due south, and 3.97 km in a direction 18.3 °
1. 1 answer
2. 770 views
A bird watcher meanders through the woods, walking 0.544 km due east, 0.925 km due south, and 3.58 km in a direction 17.3 °
1. 1 answer
2. 730 views
A rectangular piece of carpet is place on the floor of a rectangular room leaving a margin of 1 m around it. If the room
1. 5 answers
2. 2,341 views
Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the
1. 2 answers
2. 867 views
You set your stationary bike on a high 80 N friction like resistive force and cycle for 30 min at speed of 8 m/s. Your body is
1. 1 answer
2. 1,276 views
A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water
1. 2 answers
2. 3,427 views
A 75 kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5 m starting
1. 1 answer
2. 1,288 views
A student wearing frictionless in-line skates on a horizontal surface is pushed, from rest, by a friend with a constant force of
1. 2 answers
2. 1,236 views
How much work is required to accelerate a 0.145 kg baseball from rest, to a speed of 38.7 m/s?
1. 0 answers
2. 449 views
10.55 Consider an experiment with four groups, with eightvalues in each. For the ANOVA summary table below, fill in all the
1. 0 answers
2. 1,203 views
A bee flies to a flower 583 m due south of itshive. The bee’s speed in still air is 0.68 m/s, and there is a wind blowing
1. 0 answers
2. 943 views
Rubber tires and wet blacktop have a coefficient of kinetic friction of 0.5. A pickup truck with a mass 750 kg traveling 30.0
1. 0 answers
2. 988 views
A plane cruising at 247 m/s accelerates at28 m/s 2 for 8.7 s.How far will it have traveled in that time?
1. 2 answers
2. 850 views
A car travels in a straight line for 2.8 h at aconstant speed of 53 km/h . What is its acceleration? Answer in units of m/s 2
1. 2 answers
2. 1,107 views
Water is poured into a container that has a leak.Themass 'm' of the water is given as a function of time 't' by, m=5t^0.8 -3t +
1. 1 answer
2. 1,569 views
The space shuttle, with an initial mass M = 2.41×106 kg, is launched from the surface of the earth with an initial net
1. 0 answers
2. 790 views
A space probe is to be put into a circular orbit of radius 42.00 km about an asteroid. At this radius the magnitude of the
1. 1 answer
2. 689 views
Student Calamity reported a final yield of 50%. List four things she might have done wrong to account for this yield.Student
1. 2 answers
2. 671 views
you have not added enough sodium hydroxide to precipitate all the copper as copper hydroxide. How could you tell that not all
1. 1 answer
2. 635 views
A mass m = 6.0 kg is attached to the lower end of a massless string of length L = 27.0 cm. The upper end of the string is held
1. 0 answers
2. 889 views
have 10 boxes each box contains 50 peices and we're selling for 8.00 per box. If I had to repackag them into 20 pieces each how
1. 1 answer
2. 408 views
If a took a loan of $12000 for one year at 9.5% simple interest what would be my interest
1. 1 answer
2. 478 views
if a took a loan out for $12000 for one year at 10% simple discount what would be my interest
1. 1 answer
2. 405 views
In your own words, describe the meaning of marginal cost. You normally buy a crate of wine for $75. One crate has 6 bottles of
1. 1 answer
2. 886 views
if there is no oxygen for the glycolysis what process would that be called?
1. 0 answers
2. 411 views
If you have 10 lbs shrimp at 80 deg F how much ice would it take to reach 50 deg F in 10 minutes?
1. 1 answer
2. 1,055 views
5x-10/5 ?
1. 1 answer
2. 611 views
−(6p + 12
1. 1 answer
2. 284 views
A block is pressed against a vertical wall by a force , as the drawing shows. This force can either push the block upward at a
1. 1 answer
2. 1,564 views
Geosynchronous communications satellites are placed in a circular orbit that is 3.59 107m above the surface of the earth. What
1. 1 answer
2. 1,062 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 438 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 417 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 494 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 438 views
How many milliliters of 1.0 M NaOH must be added to 200. mL of 0.10 M NaH2PO4 to makea buffer solution with a pH of 7.50? (5
1. 0 answers
2. 1,092 views
A boy is pushing his sled up a snowy slope. The sled has a mass of 20.4 kg and weighs 200 N. The boy pushes with a constant
1. 3 answers
2. 2,303 views
What mass of F2 is needed to produce 116 g of PF3 if the reaction has a 77.4% yield?
1. 2 answers
2. 3,967 views
what word do these letters make
1. 1 answer
2. 514 views
a rectangle has a length of 17 inches more than twice its height. If the perimeter of a rectangle is 304 inches, find its
1. 1 answer
2. 1,360 views
(2,-7) is a point on the graph of y=f(x) . Find the corresponding point on the graph of y= 3f(5(x-1)+1 .
1. 1 answer
2. 825 views
A sample of a saturated hydrocarbon is placed in a 1.0L vessel at 107oC. The pressure of the sample at these conditions is .40
1. 1 answer
2. 539 views
A 20.0 gram sample is a mixture of sodium phosphate ,sodium mono-hydrogen phosphate,sodium dihydrogen phosphate and sodium
1. 3 answers
2. 700 views
A 20.0 gram sample is a mixture of sodium phosphate ,sodium mono-hydrogen phosphate,sodium dihydrogen phosphate and sodium
1. 0 answers
2. 586 views
m=4;(3,2)
1. 1 answer
2. 569 views
Managers should consider ethical aspects of their decisions because:
1. 0 answers
2. 359 views
x^2 +4x +9y^2 -36y +4=0
1. 1 answer
2. 545 views
1. x^2 + y^2 = 20x+y=6 2. y=x^2-2x+1 y-3=x How would I go about solving these?
1. 1 answer
2. 333 views
need formula to this. Carbon monoxide reacts with oxygen to produce carbon dioxide. If 3.0 Liters of carbon monoxide at STP, how
1. 1 answer
2. 1,091 views
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder
1. 3 answers
2. 1,015 views
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder
1. 1 answer
2. 1,043 views
The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of
1. 2 answers
2. 1,822 views
The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of
1. 1 answer
2. 818 views
Find the first derivative for,(e^(x)+ e^(-x))^2
1. 1 answer
2. 300 views
Consider a differentiable functionf having domain all positive real numbers, and for which it is known that f'(x)=(4-x)^-3 for
1. 3 answers
2. 1,089 views
E4-19 On December 31, the adjusted trial balance of Oslo Employment Agency shows the followingselected data. Accounts Receivable
1. 0 answers
2. 886 views
Today only a table is sold at a 28% discount. the sale price is now 666. what was the price yesterday?
1. 3 answers
2. 2,806 views
What is the total force on the bottom of a swimming pool 20.5 m by 8.0 m whose uniform depth is 2.1 m?
1. 1 answer
2. 1,162 views
if mary takes 3 hours to mow a lawn and sally takes 5 hours how long will it take them to mow it together
1. 1 answer
2. 662 views
In the bac of an old cupboard you discover a note signed by a pirate famous for his bizarre sense of humor and love of logical
1. 2 answers
2. 2,320 views
farmer fred had chickens and cows on his farm. he knows that together there are 108 legs and 30 heads. how many of each type of
1. 1 answer
2. 1,151 views
A 0.25 kg length of aluminum wire is warmed 10.0 degrees by an electric current. How much heat was generated by the current?
1. 1 answer
2. 911 views
A commuting student leaves home and drives to school at an average speed of 41.0 km/h. After 24.0 min she realizes that she has
1. 0 answers
2. 1,289 views
Revise the following sentences to remove all pronoun errors.41. When a police officer fires his gun, he must fill out a lot of
1. 2 answers
2. 1,005 views
i need help with just one question, and if i get it, ill be able to do the rest. Okay so its saying let height of a box be 4x+1,
1. 2 answers
2. 463 views
(4, 5)'(9, 5) and (5,1) are three of a quadrilateral whose opposite sides are equal and parallel.there are three possibilities
1. 0 answers
2. 627 views
Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent.
1. 1 answer
2. 612 views
Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent.
1. 0 answers
2. 513 views
The highest acceptable level of pesticide found in quail has been limited to 0.35 parts per million (ppm). A hunting
1. 1 answer
2. 592 views
need help with this Nominative Absolutes sentence"The town held a festival because the harvest had been so large.". is this
1. 10 answers
2. 2,704 views
after containment what would be considered the us foreign policy
1. 1 answer
2. 374 views
"A kite is flying 100ft off the ground, and its line is pulled taut. The angle of elevation of the kite is 43 degrees. Find the
1. 1 answer
2. 3,060 views
if the initial velocity is .05 m/s and its final is 1.3 m/s then how much energy is lost to friction
1. 1 answer
2. 621 views
the economic system advocated by margaret thatcher was?
1. 1 answer
2. 438 views
What is the freezing point of an aqueous solution of 10.0 g of glucose (C6H12O6) in 50.0g H2O? (kf=-1.86 C/m)
1. 1 answer
2. 2,994 views
a glider of length 10.00 cm slides down an air track. It passes through the lower photogate in .50 sec. A little later it passes
1. 1 answer
2. 438 views
how much force does 1000lbs have when drop from 36"
1. 1 answer
2. 314 views
There is a weight on a table, connected by a cord to another weight hanging over a pulley, as shownin the diagram below. The
1. 0 answers
2. 586 views
There is a weight on a table, connected by a cord to another weight hanging over a pulley, as shownin the diagram below. The
1. 2 answers
2. 622 views
Show that the equation x^3-15x+c=0 has at most one root in the interval [-2,2].
1. 3 answers
2. 6,222 views
How to determine the molarity of a 1.8% NaCl solution.
1. 0 answers
2. 446 views
Why are the Catskills not really mountains?a the catskills are lowlands b all mountains must be volcanic in origin c the
1. 0 answers
2. 598 views
add1 + 9 x+7 5x
1. 1 answer
2. 813 views
i need chapter summaries of the book The Quiet American by graham greene
1. 0 answers
2. 518 views
a 4.50 sample of LiCl at 25.0*C dissolves in 25.0 mL of water also at 25.0*C. The final equilibrium temperature of resulting
1. 0 answers
2. 508 views
a 4.50 sample of LiCl at 25.0*C dissolves in 25.0 mL of water also at 25.0*C. The final equilibrium temperature of resulting
1. 1 answer
2. 591 views
i need to know how to solve thisshark's teeth are shaped like triangles . the height of a tooth of a certain shark is 2cm longer
1. 1 answer
2. 604 views
The average time to sew a pair of pants is 4.2 hours with a standard deviation of 30 minutes and if the distribution is normal
1. 2 answers
2. 595 views
an object is released from rest on a planet that has no atmosphere.the object falls freely for 3.46 m in the first second.what
1. 1 answer
2. 1,089 views
what is the correct abc order for sister's sisters sisters'
1. 1 answer
2. 476 views

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