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Questions Asked on January 31, 2011

During the first 18 minutes of a 1.0-hour trip, a car has an average speed of 11 m/s. What must the average speed of the car be
1. 3 answers
2. asked by thaokieu
3. 10,201 views
The components of vector A are Ax and Ay (both positive), and the angle that it makes with respect to the positive x axis is θ.
1. 4 answers
2. asked by thaokieu
3. 7,835 views
A person going for a morning jog on the deck of a cruise ship is running toward the bow (front) of the ship at 2.2 while the
1. 4 answers
2. asked by Tess
3. 5,347 views
How does Western Europe's physical geography affect its settlement patterns, economy, and culture?I've looked in the lesson and
1. 11 answers
2. asked by Katy
3. 5,043 views
The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table.
1. 2 answers
2. asked by thaokieu
3. 4,963 views
A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s. Neglecting air resistance, two seconds later the
1. 1 answer
2. asked by susan
3. 4,336 views
a .50 kg ball traveling at 6.0 m/s collides head on with a 1.0 kg ball moving in the opposite direction at a velocity of -12.0
1. 2 answers
2. asked by willy n
3. 3,798 views
A study draws triangle with a perimeter 36cm.the study says that the longest side measures 18cm. how do you know that the
1. 1 answer
2. asked by JUn
3. 3,649 views
High-performance race cars can accelerate from 0 m/s to 27 m/s (60 mi/h) in about 4 s. To see how large the acceleration due to
1. 2 answers
2. asked by thaokieu
3. 3,359 views
Which one of the following situations is not possible?A body travels with a constant acceleration and a time-varying velocity. A
1. 3 answers
2. asked by thaokieu
3. 3,219 views
A pole tilts 12 degrees from the vertical, away from the sun, casts a 34 foot long shadow on level ground. The angle of
1. 2 answers
2. asked by Chloe Mack
3. 3,114 views
A lighthouse keeper 100 feet above the water sees a boat sailing in a straight line directly toward her. As watches, the angle
1. 1 answer
2. asked by Chloe Mack
3. 2,919 views
two campers dock a canoe. one camper steps onto the dock. this camper has a mass of 80 kg and moves forward at 4 m/s. with what
1. 3 answers
2. asked by sabeen
3. 2,832 views
1) A charge of 80nC is uniformly distributed along the x-axis from x= 0 to x= 2.0m. Determine the magnitude of the electric
1. 1 answer
2. asked by Allan
3. 2,720 views
A man is 6ft tall is standing 10 feet from the base of a lamp post. The mans shadow has a lenght of 4ft . How tal is he lamp
1. 1 answer
2. asked by jake
3. 2,675 views
When solid CO2 (dry ice) is allowed to come to equilibrium in a closed constant volume container at room temperature (300K),1.
1. 6 answers
2. asked by Douglas
3. 2,587 views
a compact car has mass 725 kg and is moving at 100 km/h.a) find its momentum b) at what velocity is the momentum of a larger
1. 3 answers
2. asked by skhan
3. 2,484 views
The moon is 384,000 km from the earth and makes 1 revolution in 27.3 days. Find its angular and linear speeds in its orbit.
1. 3 answers
2. asked by Art
3. 2,449 views
you will be making hanging flower baskets. the plants you have picked out are blooming annuals and non-blooming annuals. the
1. 9 answers
2. asked by Bri
3. 2,356 views
A dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force
1. 2 answers
2. asked by Jake
3. 2,344 views
What factors account for the resurgence of interest in Operation and Supply Chain Management (OSCM) today?
1. 2 answers
2. asked by Jaison
3. 2,308 views
A mass M is initially at rest on a horizontal surface, μs=0.30 and μk=0.20 . A horizontal string then pulls M with a tension
1. 5 answers
2. asked by Megan
3. 2,241 views
A journey consists of two displacements: the first is 500m in a northerly direction and the second is 200m in an easterly
1. 4 answers
2. asked by olive
3. 2,234 views
a basket of fruit has 3 apples, 2 pears, and 4 bananas. what fraction of the fruit are bananas?
1. 3 answers
2. asked by keke
3. 2,034 views
a 4 kg model rocket is launched, shooting 50 kg of burned fuel from its exhaust at an average velocity of 625 m/s. What is the
1. 1 answer
2. asked by collin
3. 1,857 views
In a third grade class 2/5 of the students wear glasses. What fraction of the students do not wear glasses?If 16 students wear
1. 2 answers
2. asked by Brandyn
3. 1,846 views
a group of students go out for lunch. if two have hamburgers and five have hotdogs, the bill will be $8.00. if five have
1. 3 answers
2. asked by Anonymous
3. 1,691 views
Max area - A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the
1. 2 answers
2. asked by Gabriel
3. 1,678 views
A runner X ran the mile race in 4.25 sec. Another runner Y requires 4.55 sec to run the distance. If they start out together and
1. 2 answers
2. asked by Art
3. 1,624 views
What was the role of Social Darwinism in American imperialism? Are there implications of race underneath a belief in Social
1. 2 answers
2. asked by Johnathan
3. 1,571 views
A dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force
1. 2 answers
2. asked by Jake
3. 1,567 views
Before starting this problem, review Conceptual Example 7. The force vector A has a magnitude of 79.0 newtons (N) and points due
1. 2 answers
2. asked by thaokieu
3. 1,558 views
A random sample of 12 joggers was asked to keep track and report the number of miles they ran last week the responses are:5.5
1. 2 answers
2. asked by qui
3. 1,474 views
a)why do chemist prefer to read/ record the absorbance, rather that the percent transmittance, of light when analyzing a sample
1. 2 answers
2. asked by joe
3. 1,416 views
find the number z such that the proportion of observations are less than z in a standard normal distribution is 0.8
1. 2 answers
2. asked by Vicky
3. 1,371 views
Which is true about all points in the second quadrant?
1. 1 answer
2. asked by foo
3. 1,345 views
In this problem you will determine the average velocity of a moving object from the graph of its position as a function of time
1. 0 answers
2. asked by Bre
3. 1,323 views
Can someone help me? I have a quiz on Direct object pronouns and direct object pronouns replacing direct object nouns. I've
1. 3 answers
2. asked by Clorissa
3. 1,322 views
a 35 kg bullet strikes a 5 kg wooden block and embeds itself in the block. the block and bullet slide off together at 8.6 m/s.
1. 1 answer
2. asked by maximillion
3. 1,316 views
An object is moving along a straight line. The graph shows the object's velocity as a function of time.. What is the
1. 0 answers
2. asked by thaokieu
3. 1,309 views
When you freeze water, 80 calories of heat are released into the surroundings for every gram of water that freezes. This is
1. 1 answer
2. asked by Elizabeth
3. 1,307 views
Calculate the mass for:A gold sample that absorbs 225 J to change its temperature form 15 degrees celsius to 47 degrees celsius.
1. 2 answers
2. asked by Beth
3. 1,291 views
A boat travels for 8 kilometers in a straight line from the dock. It is then sighted from a lighthouse which is 6.5 kilometers
1. 1 answer
2. asked by Chloe Mack
3. 1,280 views
a block , mass .10 kg, slides from rest without friction down an inclined plane 2m long which makes an angle of 20 degrees with
1. 0 answers
2. asked by james
3. 1,274 views
For the reaction H2+I2, Kc=55.3 at 700K. In a 2. L flask containing an equilibrium mixture of three gases, there are .056g H2
1. 0 answers
2. asked by Jeff
3. 1,262 views
For a population with u=50 and o=8, find the z-score for x=54, x=42, x=62 ,x=48 ,x=52 ,x=34
1. 1 answer
2. asked by Dana
3. 1,260 views
A mass M is initially at rest on a horizontal surface, μs=0.30 and μk=0.20 . A horizontal string then pulls M with a tension
1. 0 answers
2. asked by Megan
3. 1,183 views
i have 2 solve by elimination an i keep gettin fractions when the answer is (-3,-3)my teacher gave me the answer an problem but
1. 2 answers
2. asked by angel
3. 1,182 views
Find the derivative of f(x)=1/3 sqrt x.The 3 is little above the square root. I know that it is -1/3x^-4/3. Can this be written
1. 2 answers
2. asked by Hannah
3. 1,166 views
Moon is a natural satellite of the Earth, circling it with period (time of one revolution), T = 27,3 days. Radius of Moon’s
1. 1 answer
2. asked by Anonymous
3. 1,153 views
Enter the correct conjugation of the "-ar" verb for each sentence:1. Tú y yo _____ cuadernos nuevos. (necesitar) 2. ¿_____
1. 1 answer
2. asked by Isabella
3. 1,146 views
Compute taxable income.gross salary 46,660 interest earnings 225.00 dividend income 80.00 one personal exemption 3,400 itemized
1. 1 answer
2. asked by Marie
3. 1,124 views
A force vector has a magnitude of 576 newtons and points at an angle 43o of below the positive x axis. What are (a) the x scalar
1. 1 answer
2. asked by thaokieu
3. 1,122 views
a .105 kg hockey puck moving at 48 m/s is caught by a 75 kg goalie at rest. With what speed does the slide on the ice?
1. 2 answers
2. asked by dana
3. 1,114 views
Max area - A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the
1. 1 answer
2. asked by Gabriel
3. 1,111 views
A car can travel 410 miles on 41 gallons of gasoline. How far can it travel on 19 gallons?
1. 1 answer
2. asked by Hailey
3. 1,105 views
A straight road slopes at an angle of 10 degrees with the horizontal. When the angle of elevation of the sun (from horizontal)
1. 2 answers
2. asked by Chloe Mack
3. 1,102 views
As promised, I'm posting you the sentences I'm really doubtful of. I hope you can help me with the rephrasing.1)He has devoted
1. 1 answer
2. asked by Franco
3. 1,082 views
Two trains depart simultaneously from the same station. The angle between the two tracks on which they leave is 120 degrees. One
1. 0 answers
2. asked by Chloe Mack
3. 1,080 views
Find the exact area below the curve (1-x)*x^9 and above the x axis
1. 3 answers
2. asked by Amanda
3. 1,076 views
How would you work, and solve this problem?Christa is a waitress and collects her tips at the table. At the end of the shift she
1. 1 answer
2. asked by Megan Brown
3. 1,065 views
A large merry-go-round completes one revolution every 10.5 s. Compute the acceleration of a child seated on it, a distance of
1. 1 answer
2. asked by Anonymous
3. 1,058 views
Assume that investors have recently become more risk averse, so the market risk premium has increased. Also, assume that the
1. 0 answers
2. asked by Alex
3. 1,051 views
I want to ensure I've done this problem correctly. Thanks!3. In one elementary school, 200 students are tested on the subject of
1. 1 answer
2. asked by Lauren
3. 1,043 views
The width of a rectangular prism is w centimeters. The height is 2 centimers less than the width. The length is 4 centimeters
1. 2 answers
2. asked by hjd
3. 1,040 views
Thanks for your help; I am still have a few problems, could you check my work:Given: Volume of vinegar analyzed-5mL Con'c of
1. 0 answers
2. asked by Adam
3. 1,039 views
Calculate the first, second, and third quartiles of the following samples.5 8 2 9 5 3 7 4 2 7 4 10 4 3 5 23
1. 1 answer
2. asked by James
3. 1,020 views
Suppose you wish to borrow 635.08 dollars today from a bank which charges interest at a rate of 4.14% per month. You promise to
1. 0 answers
2. asked by Roo Kun
3. 1,010 views
calculate the force exerted on a rocket given that the propelling gases are expelled at a rate of 1000 kg/s with a speed of
1. 2 answers
2. asked by kalli sarik
3. 1,008 views
a snowmobile has a mass of 2.5*10^2 kg. A constant force acts upon it for 60 seconds. The snowmobile's inital velocity is 6 m/s
1. 0 answers
2. asked by collin
3. 1,002 views
If you purchased a zero coupon bond today for $225 and it maturity value is $1,000 in 11 years, what rate of return will you
1. 1 answer
2. asked by Teresa
3. 972 views
You are the comissioner of a state lottery sytem that sponsers weekly drawings. Lottery ticjets have not been selling well over
1. 2 answers
2. asked by jdajaljk
3. 962 views
A dam 15 m high holds the water in reservoir . For safety reasons , the water level is maintained at a height 3 m below the top
1. 1 answer
2. asked by hussain
3. 955 views
Can you please explain to me how I can solve these problems?(3^ square root of3) ^square root of 3 (x^ square root of 2) ^square
1. 1 answer
2. asked by Juan
3. 945 views
A charity fund-raiser consisted of a spaghetti dinner where a total of 387 people were fed. They charged $6.80 for adults and
1. 1 answer
2. asked by Megan Brown
3. 936 views
In this writing assessment, you are going to use vocabulary from this section to talk about your house. Answer the questions you
1. 2 answers
2. asked by NEEDS HELP!!
3. 936 views
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a
1. 0 answers
2. asked by Paul
3. 914 views
A 5.0g silver spoon at 20.0C is placed in a cup of coffee at 90.0C. How much heat does the spoon absorb from the coffee to reach
1. 2 answers
2. asked by Leah
3. 913 views
Richard likes the car price of $10,000 but financing through the dealer is no bargain.He has $2,000 for a down payment,so he
1. 1 answer
2. asked by tina
3. 899 views
A 40 foot high flagpole sits on the side of a hill. The hillside makes a 17 degree angle with horizontal. How long is a wire
1. 0 answers
2. asked by Chloe Mack
3. 894 views
A road rises 140 feet per horizontal mile. What angle does the road make with the horizontal?
1. 1 answer
2. asked by Chloe Mack
3. 894 views
the rate constant (k) for a reaction was measured as a function of temperature. A plot of In k versus 1/T (in K ) is linear and
1. 0 answers
2. asked by sue
3. 887 views
a 35 kg bullet moving at 475 m/s. strikes a 2.5 kg wooden block. the bullet passes through the block, leaving at 275 m/s. the
1. 3 answers
2. asked by calab mikka
3. 872 views
A right triangle has a base that is 2 more than twice the height. Find the length of the base for the triangle. If the area is
1. 1 answer
2. asked by Raj
3. 869 views
A battleship simultaneously fires two shells toward two identical enemy ships. One shell hits ship A, which is close by, and the
1. 0 answers
2. asked by Tess
3. 845 views
what is radius and diameter in third grade math
1. 1 answer
2. asked by nea
3. 841 views
A woman on the top of a 448 foot high building spots a small plane. As she views the plane, its angle of elevation is 62
1. 3 answers
2. asked by Chloe Mack
3. 838 views
Two charged particles exert an electrostatic force of 8 N on each other. What will the magnitude of the electrostatic force be
1. 1 answer
2. asked by Kim
3. 833 views
Find the average velocity over the time interval from 1 to 3 seconds.Express your answer in meters per second to the nearest
1. 1 answer
2. asked by Whitney
3. 829 views
list the sides in order from shortest to longest in angle PQR,with P=45,Q=10x+30,and R=5x
1. 0 answers
2. asked by JUn
3. 828 views
Two surveyors, Joe and Alice, are 240 meters apart on a riverbank. Each sights a flagpole on the opposite bank. The angle from
1. 1 answer
2. asked by Chloe Mack
3. 820 views
the tennis ball may leave the racquet on the serve with a speed of 65 m/s. If the ball's mass is 60 g, and it is in contact with
1. 2 answers
2. asked by Sammy Palmisano
3. 818 views
A surveyor stakes out points A and B on sides of a building. Point C on the side of the building is 300 feet from A and 440 feet
1. 1 answer
2. asked by Chloe Mack
3. 807 views
1.Jenny (had) never (used) graphics software on the computer.2.She (was writing) a report about the Ohio River. 3.Jenny (wanted)
1. 4 answers
2. asked by Hayden
3. 805 views
A train is moving 50km/h east. A person is walking 5 km/h west on the train. How fast is the person on the train going relative
1. 2 answers
2. asked by Jenni
3. 805 views
A room is 12 feet by 16 feet. on a scale drawing the 12-foot wall is 4 inches long. how long will the 16-foot wall be?(explain
1. 2 answers
2. asked by rm
3. 800 views
1. If a gaseous sample contains 73% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C
1. 0 answers
2. asked by Ashley
3. 794 views
Each month the Speedy Dry Cleaning Company buys one barrel (0.160 m3)of dry cleaning fluid. Ninety percent of the fluid is lost
1. 1 answer
2. asked by Jazmin
3. 786 views
Calculate the individual torques produced by the weights of the girl and boy on the see-saw in the figure above, given that
1. 0 answers
2. asked by Anonymous
3. 781 views
I made a few changes to my previous sentences. That's why I'm posting them back to you. Can you see if everything is OK?1)It is
1. 1 answer
2. asked by Franco
3. 772 views

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