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Questions Asked on October 3, 2013

Block 1, of mass m1 = 0.650kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, as shown.
1. 5 answers
2. asked by Joe
3. 18,401 views
A 100-kg box is placed on a ramp. As one end of the ramp is raised, the box begins to move downward just as the angle of
1. 2 answers
2. asked by Meme
3. 7,319 views
Jamal pulls a 150-N sled up a 28.0 degrees slope at constant speed by a force of 100 N. Near the top of the hill he releases the
1. 2 answers
2. asked by Meme
3. 6,317 views
Consider the curve given by y^2 = 2+xy(a) show that dy/dx= y/(2y-x) (b) Find all points (x,y) on the curve where the line
1. 2 answers
2. asked by Mathew
3. 5,973 views
2) Which of the following is a pure substance? (1point)Chocolate milk Orange juice Seawater*** Hydrogen peroxide (H2O2)
1. 7 answers
2. asked by Gabby
3. 5,215 views
Okay, so I think these are right, but I would appreciate if someone could check them and tell me if something is wrong and what
1. 4 answers
2. asked by Samantha
3. 4,524 views
The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than .4 ounces. Suppose that 800 jawbreakers
1. 4 answers
2. asked by Paul
3. 4,405 views
When might preserved remains of an entire organism form?A. When sediment buries the hard part of an organism. (this one) B. When
1. 18 answers
2. asked by Anonymous
3. 4,318 views
Could someone tell me if I'm right, and if not what the correct answer is? Thank you! I'd appreciate an explanation, too, if you
1. 2 answers
2. asked by Samantha
3. 4,268 views
In the apparatus shown in the figure (Figure 1) , m1 = 10kg and the coefficients of static and kinetic friction between m1 and
1. 1 answer
2. asked by tom
3. 4,081 views
A worker pulls a 200-N packing crate at constant velocity across a rough floor by exerting a force F = 55.0 N at an angle of
1. 1 answer
2. asked by Meme
3. 3,752 views
A solution contains an unknown amount of dissolved magnesium. Addition of 3.38×10−2mol of Na2CO3 causes complete
1. 2 answers
2. asked by Courtney
3. 3,399 views
1). Last week, the ratio of laptops to desktops sold at a computer store was 2:3. Eighteen desktop models were sold. How many
1. 4 answers
2. asked by Anonymous
3. 2,624 views
1. A transformer has a primary voltage of 115 V and a secondary voltage of 24 V. If the number of turns in the primary is 345,
1. 3 answers
2. asked by StarBuddy
3. 2,471 views
A scientist goes to a large international conference and hears about a new discovery. The scientist is very excited about these
1. 2 answers
2. asked by Anonymous
3. 2,432 views
For many years pellagra was believed to be an infectious disease promoted by unsanitary conditions. it was common in sanatoriums
1. 4 answers
2. asked by **anon**
3. 2,374 views
a number between 1000 and 9999, inclusive, is chosen at random. what is the probability that it contains a)no 9's? b) at least
1. 1 answer
2. asked by Taryn
3. 2,357 views
1) How did Connecticut, Rhode Island, and New Hampshire colonies begin? (1point)Founders of all three colonies strongly
1. 8 answers
2. asked by Gabby
3. 2,079 views
what is the minimum value for z=3x-1/2y over the feasibility region defined by the constraints?a.-4 b.-5 c.-3 d.-6
1. 3 answers
2. asked by ray
3. 2,009 views
A 1260-kg car starts from rest at the bottom of a drive way and has a speed of 3.00 m/s at a point where the drive way has risen
1. 1 answer
2. asked by Cheech
3. 1,930 views
1). Why were people able to say, "The sun never sets on the British Empire"?A: People were able to this because the British
1. 7 answers
2. asked by Anonymous
3. 1,919 views
The systems shown below are in equilibrium (with m = 4.80 kg and θ = 27.0°). If the spring scales are calibrated in newtons,
1. 1 answer
2. asked by Ashley
3. 1,906 views
the combustion of propane produces carbon dioxide and steam C3H8(g)+5O2(g) 3CO2(g)+4H2O(g)
1. 2 answers
2. asked by adriane
3. 1,864 views
A charged particle with a charge-to-mass ratio of |q|/m = 5.7 x 10^8 C/kg travels on a circular path that is perpendicular to a
1. 1 answer
2. asked by Anonymous
3. 1,855 views
Consider sin(x-360)sin(90-x)tan(-x)/cos(90+x)1.A.SIMPLIFY sin(x-360)sin(90-x)tan(-x)/cos(90+x) to a single trigonometric ratio
1. 2 answers
2. asked by katlego ratsoma
3. 1,824 views
How many moles are contained in 1.20 x 1024 molecules CO2?
1. 2 answers
2. asked by Vince
3. 1,740 views
A hockey player hits a puck with his stick, giving the puck an initial speed of 5.8m/s .Part A If the puck slows uniformly and
1. 2 answers
2. asked by Joe
3. 1,581 views
which of the following situations describes an equilibrium? which does not? if the situation does not describe an eqilibrium,
1. 1 answer
2. asked by Dalia
3. 1,574 views
Find x-component of vector d=(110m , 46 degrees below + x-axis).Find y-component of vector d=(110m ,46 degrees below + x-axis).
1. 1 answer
2. asked by Anonymous
3. 1,527 views
You want to purchase a new condominium which costs $329,000. Your plan is to pay 20 percent down in cash and finance the balance
1. 1 answer
2. asked by selam
3. 1,449 views
The voltage at a receptor site has just changed from -70 millivolts to -75 millivolts as a result of an _______ and will
1. 1 answer
2. asked by Jesse
3. 1,424 views
A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The
1. 2 answers
2. asked by Hunter
3. 1,394 views
when 15.0g of steam drops in temperature from 275.0 celsius to 250.0 celsius, how much heat energy is released?
1. 2 answers
2. asked by lima
3. 1,391 views
An Olympic skier moving at 20.0 m/s down a 30.0 degrees slope encounters a region of wet snow, of coefficient of friction uk =
1. 1 answer
2. asked by Meme
3. 1,316 views
Use the concept of opportunity cost to explain the following.a. more people choose to get graduate degrees when the job market
1. 10 answers
2. asked by Dalia
3. 1,303 views
Explain what 4 raised to the fourth power means.
1. 2 answers
2. asked by Jared
3. 1,297 views
A flowerpot falls from a window sill 26.8 m above the sidewalk.What is the velocity of the flowerpot when it strikes the ground?
1. 2 answers
2. asked by Anonymous
3. 1,287 views
in the binomial expansion of (1+x/k)^n, where k is a constant and n is a positive integer, the coefficients of x and x^2 are
1. 1 answer
2. asked by mutinta
3. 1,260 views
A football is thrown toward a receiver withan initial speed of 15.4 m/s at an angle of 38.7 ◦ above the horizontal. At that
1. 1 answer
2. asked by sam
3. 1,192 views
when working with behavior disordered children in the classroom,the teacher aide can modify behaviorbyA)praising them when they
1. 1 answer
2. asked by cathy
3. 1,192 views
The figure shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless
1. 1 answer
2. asked by kristy
3. 1,175 views
1. What is an agreement that is entered into with an evil purpose in order to commit the crime of conspiracy?A. Non-motives
1. 2 answers
2. asked by Amy
3. 1,114 views
Solve each equation. Rewrite the equation as two cases.1). The absolute value of x - 2 minus 3 equals 5. A: I know one of the
1. 1 answer
2. asked by Anonymous
3. 1,107 views
The initial state consists of a closed system containing one mole of water (liquid) at 85°C and 1 atmosphere pressure. The
1. 0 answers
2. asked by Elaine
3. 1,089 views
1. If I had studied hard, I could have gotten a higher score.2. If I had studied hard, I could have gotten a better result. 3.
1. 3 answers
2. asked by rfvv
3. 1,051 views
As you look out of your dorm window, a flower pot suddenly falls past. The pot is visible for a time t, and the vertical length
1. 0 answers
2. asked by koram
3. 1,045 views
An object (mass 3.2kg ) slides upward on a vertical wall at constant velocity when a force F of 54N acts on it at an angle of
1. 1 answer
2. asked by Cheech
3. 1,026 views
1. Which of the following is one way to prevent the corrosion of iron?A. Paint exposed iron parts with protective paint. B.
1. 4 answers
2. asked by StarBuddy
3. 1,005 views
if y=e^(3x) sin 4x. Show that (d^2y/dx^2)-(6dy/dx)+25y=0(b) for the curve with equation y=(x^2+1)/(x^2-4), find (i) the
1. 1 answer
2. asked by masuzyo
3. 1,005 views
The original 10 ml (KIO3) solution is 0.020M is mixed with 10 mL of 0.0020M NaHSO3 which give a total volume of 20 mL. Calculate
1. 1 answer
2. asked by Raj
3. 989 views
A piece of copper wire has a resistance per unit length of 5.50 x 10^-3 Ω/m. The wire is wound into a thin, flat coil of many
1. 1 answer
2. asked by Anonymous
3. 973 views
1. If a minor female agrees to break into a home with the intent to use the bed in the house for sexual intercourse with her
1. 2 answers
2. asked by Amy
3. 954 views
Find x-component of vector d=(110m , 46 degrees below + x-axis).Find y-component of vector d=(110m ,46 degrees below + x-axis).
1. 1 answer
2. asked by john
3. 930 views
A "swing" ride at a carnival consists of chairs that are swung in a circle by 19.8 m cables attached to a vertical rotating
1. 0 answers
2. asked by Tyler
3. 913 views
1. If you're driving towards the sun late in the afternoon, you can reduce the glare from the road by wearing sunglasses that
1. 2 answers
2. asked by StarBuddy
3. 886 views
A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The
1. 1 answer
2. asked by Hunter
3. 881 views
This problem is based on the specific factors model. Consider the economy of the Shire that produces cereals and swords. Each
1. 1 answer
2. asked by Joy
3. 796 views
For this assignment, you will write an editorial about an issue that confronts your school or community. What does this mean?
1. 3 answers
2. asked by vickie
3. 789 views
. Parliament passed the Coercive Acts, known in America as the Intolerable Acts, in response toA. Patrick Henry's Resolves. B.
1. 2 answers
2. asked by tiffany
3. 782 views
Car a with a mass of 1250kg is travelling at 30m/s to the east. Car b is a truck with a mass of 2000kg, travelling to the west
1. 0 answers
2. asked by David
3. 777 views
A block of mass 2.40 kg is pushed 2.09 m along a frictionless horizontal table by a constant 18.6 N force directed 23.7o below
1. 1 answer
2. asked by beccs
3. 770 views
Two flip-flops are connected as shown below. The delay represents wiring delay between the two clock inputs, which results in
1. 0 answers
2. asked by Mohamed
3. 741 views
compute the unit price for products sold the program should input the name and price of an item and its weight in pounds and
1. 0 answers
2. asked by Anonymous
3. 736 views
Find the area bounded by {y=x2−4y=4−x2 • sketch the region described • determine any intersection point(s) for the
1. 1 answer
2. asked by Will
3. 736 views
the sides of a triangle are (x+2),(3x+1), and (x+7) find the value of x if the perimeter is 140cm
1. 1 answer
2. asked by bella
3. 722 views
What career can I take
1. 7 answers
2. asked by william
3. 719 views
Ahmad throws a ball straight up. For which situation is the vertical velocity zero?[Note: Neglect the air resistance] Answer at
1. 2 answers
2. asked by Maryam
3. 718 views
Julie has been offered two jobs. The 1st one pays $400 per week. The 2nd job pays $175 per week plus 15% commision of her sales.
1. 4 answers
2. asked by Jenny
3. 718 views
1. If I had brought an umbrella, I would not have gotten wet.2. If I had brought an umbrella, I would not have been wet. 3. If I
1. 1 answer
2. asked by rfvv
3. 717 views
Find the derivatives of:1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!?
1. 1 answer
2. asked by Daisy
3. 708 views
Orthodontic braces can be painful, this is due in part to placing mechanical stress on the ____________ (joint type), causing
1. 2 answers
2. asked by Elaine
3. 701 views
the perimeter of a rectangle is 72. the base is 3 times the height find the area of the rectangle
1. 1 answer
2. asked by w
3. 700 views
A ________ are designed to alleviate friction that may be caused by accessory structures, like a tendon, during movement of a
1. 0 answers
2. asked by Elaine
3. 697 views
The acceleration due to the moon's gravity at its surface is less than what it is here on the surface of the earth. The computed
1. 1 answer
2. asked by becca
3. 695 views
A 50mL solution of Histidine-HCl (Histidine: pKa1=1.8, pKa2=9.2, pKa3=6.0)is titrated with 0.500M NaOH. What is the expected pH
1. 1 answer
2. asked by Drew
3. 685 views
way safety engineers build soft barriersso that cars hitting them will slow down at a safe rate. A person wearing a safety belt
1. 1 answer
2. asked by Harmonie
3. 683 views
Locate a scholarly, peer-reviewed journal article in the Ashford University Library. This article must be an original research
1. 1 answer
2. asked by hah
3. 683 views
According to the permanent income hypothesis, households will tend to react to a temporary tax cut by?A) assuming the new tax
1. 1 answer
2. asked by Tim
3. 669 views
Book works out integral of sqtr(a^2-x^2)dx as a^2/2*arcsin(x/a)+x/2*sqrt(a^2-x^2) by taking x=a sin theta, and advises to work
1. 2 answers
2. asked by ms
3. 668 views
Airplane staring from airport a flies 300 km east then 395 km 26.5 degrees west of north, and then 150 km north to arrive at
1. 1 answer
2. asked by Travis
3. 664 views
In research, several principles have been shown to affect the strength of association between stimuli. Based on your own
1. 2 answers
2. asked by hah
3. 661 views
discribe three of the trials and tribulations that native americans endure during the settlement of the west
1. 7 answers
2. asked by loli
3. 654 views
4. Chlorine and bromine react by the equationCl2(g) + Br2(g) D 2BrCl(g)Kc = 1.2 x 102 at 150oC. What are the equilibrium
1. 0 answers
2. asked by Abay
3. 641 views
A student took 100 mL of a solution of Mg(OH)2 and reacted it with HCl (aq) to calculate the concentration of hydroxide ions in
1. 1 answer
2. asked by Donna
3. 632 views
when the depth of liquid in a container is x cm, the volume of the liquid is x(x^2+25) cm^3. Liquid is added to the container at
1. 4 answers
2. asked by tasha
3. 631 views
Question8: Using the Present Value Table on page 358 of your text to compute the present value (principal) for an investment
1. 2 answers
2. asked by Erica Walden
3. 629 views
1) Pilgrims who came to the Americas in the 1600’s were mainly seeking________.(1point)God, gold, and glory A colony solely
1. 6 answers
2. asked by Gabby
3. 626 views
y = ½ x^2 – x +3 for 1≤x≤6(b) Calculate the mid- ordinates for 5 strips between x = 1 and x= 6, and hence use the
1. 1 answer
2. asked by Kg
3. 624 views
need help with comma and semi colon.
1. 2 answers
2. asked by felicia
3. 621 views
The ______ of the knee not only provide cushioning but assist with stability and improving fit between the articulating surfaces
1. 2 answers
2. asked by Elaine
3. 618 views
Rob has a balance of 1695$ in his bank account The account pays 2.9% interest per year, compounded annually. The compound
1. 1 answer
2. asked by sam
3. 616 views
Consider the following scenario:Mr. Smith was admitted to the hospital for surgery on his left knee. When Mr. Smith woke up from
1. 1 answer
2. asked by Queen Sanchez
3. 610 views
The ______ ______ (two words), a syndesmosis, which provides a pivot point where two parallel-aligned bones, like the tibia and
1. 0 answers
2. asked by Elaine
3. 601 views
I'm not sure what I am supposed to do hereI am to write a Bibliographic essay on my sources for my final research essay - what
1. 1 answer
2. asked by Sara
3. 600 views
Find dy/dx by implicit differentiation1. x^3 -xy+ y^2= 7 The given answer is (y-3x^2)/ (2y-x), but I'm not getting it. 2. How
1. 2 answers
2. asked by Anonymous
3. 598 views
Briefly describe a desalination process.What can make desalination expensive? Name 2 renewable energy sources that can be used
1. 1 answer
2. asked by Jake
3. 569 views
a 100g mass of cookie dough hits inelastically with a 300g mass of cookie dough and they stick. the 100 g mass was moving to the
1. 0 answers
2. asked by Dee
3. 568 views
A person wearing a safety belt canwithstand an acceleration of 300 m/s 2 . How thick should barriers be to safely stop a car
1. 0 answers
2. asked by Harmonie
3. 565 views
An influenza epidemic has an infection rate modeled by I ' (t)=30 e0.04 t , where t is timemeasured in days since the start of
1. 1 answer
2. asked by Mia
3. 564 views
if john spent $130 and matt spent $480, john will have three times as much money left as matt. both boy's started with the same
1. 1 answer
2. asked by Ron
3. 555 views

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