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Sam
Questions (2,385)
A 50 kg cart rests on frictionless surface. A net force of 75 N acts on the carts over a distance of 2m. What maximum speed does
1 answer
623 views
A sample of sodium sulfate, Li2SO4, contains 6.78 x 10^23 formula units.
How many moles of Li2SO4 are there in the sample? How
3 answers
712 views
Determine the quantity of heat required to convert 1kg of ice at
−20 degrees Celsius to water at 100 degrees Celsius? Specific
1 answer
589 views
1) If a soil had a pH of 5.5, how many milli-equivalents of acids would it have per 100 grams?
2) How many milli-equivalents of
1 answer
547 views
In an experiment to verify Newton's law of cooling, the temperature of hot water in a calorimeter
T/oC is plotted against time
2 answers
807 views
Thoreau included the following sentence in Walden:
"There is some of the same fitness in a man's building his own house that
3 answers
1,395 views
Which term best describes the solution of the situation represented by the system of inequalities? (Assume that x >= 0 and y >=
1 answer
1,179 views
A block is placed on a frictionless ramp at a height of 14.5 m above the ground. Starting from rest, the block slides down the
1 answer
1,807 views
A plane element is subjected to a shear stress τ = 360MPa which results to a shear strain σ = 0.008rad.
a) determine the shear
0 answers
636 views
Brandon buys a radio for 43.99$ in a state where the sales tax is 7%
How much did he pay in taxes ? What is the total Brandon
7 answers
3,031 views
What positive four-digit integer has its thousands and hundreds digits add up to the tens digit.
Its hundreds and tens digits add
2 answers
1,614 views
I need help determining the intervals of increase, decrease and the intervals of upward and downward concavity given f prime.
f'(
1 answer
516 views
3. Which of the following techniques to arouse curiosity would work best with junior high students?
A. Set up a curiosity
2 answers
964 views
A 27.9 kg block (m1) is on a horizontal surface, connected to a 5.3 kg block (m2) by a massless string. The pulley is massless
0 answers
621 views
Starting from rest, a 98-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a
0 answers
861 views
A marble rolls off a lab table that is 0.92 m high. It rolls off the table with a velocity of 1.66 m/s. How far from the base of
1 answer
1,010 views
A toy gun uses a spring to shoot a ball with a mass of 5.0 g. The spring is “loaded” by compressing it 5.0 cm and
has a
0 answers
1,245 views
a) If the silty clay loam soil profile is 1 meter deep, how much plant available water (cm) can potentially be held in the upper
0 answers
372 views
You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the
0 answers
554 views
A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m = 5.3 kg.
A. If the tension
1 answer
2,169 views
a particle is moving in a straight line the particle starts with speed 5ms and accelerates at a constant rate of 2ms for 8s it
1 answer
643 views
A block of wood of mass 1.2kg initially at rest is free to slide on a horizontal surface. A bullet of mass 100g travelling at a
2 answers
778 views
A volume of 60.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What
2 answers
1,771 views
the points (1,4), (3,8) and (8,3) lie on the graph whose equation is of the form: y=a|x-b|+c where a,b and c are real numbers.
1 answer
375 views
What are some of the reasons why everyone does not have the same pulse rate at rest.
I think is would be your age,
1 answer
496 views
A 50 year old male who is not overweight and has normal blood cholesterol levels suffers a heart attack. Propose a possible
2 answers
643 views
Little confused on how to get part B.
A) if 3.00g of hydrosulfuric acid is reacted with 3.00g of silver nitrate, calculate the
2 answers
766 views
A map of Florida is an example of a(n) ________.
*I researched this a little bit and I thought it might be peninsula. Can someone
4 answers
1,247 views
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test,
0 answers
454 views
Scores on a marketing exam are known to be normally distribute with mean and standard deviation of 60 and 20, respectively. The
2 answers
1,514 views
(I think I'm supposed to use residence time?)
About 30,000 years ago, during the last glacial maximum, glaciers and ice sheets
1 answer
507 views
A student states that for any positive integer n is the sum of n successive integers is always divisible by n. Which of the
2 answers
562 views
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a
1 answer
991 views
How many grams of sodium carbonate are in a sodium carbonate sample that contains 1.773x10^17 carbon atoms? How do I work this
1 answer
2,719 views
How many protons are contained in a circular puddle of mercury that is 8.5 inches wide and .25 inches deep?
1 answer
1,008 views
what is another path that a scientist might follow using the data from an experiment that did not support the hypothesis .
3 answers
448 views
On a certain hot summer's day, 300 people used the public swimming pool. The daily prices are $1.75 for children and $2.25 for
1 answer
577 views
Line through (0,b) and (10,-5) is perpendicular to the line through (a,0) and (-6,-3). If all ordered pairs (a,b) which make the
1 answer
572 views
A number and its absolute value are equal. if you subtract 2 from the number, the new number and its absolute value are not
3 answers
1,023 views
If the absolute value of a negative number is 2.78, what is the distance on the number line between the number and its absolute
15 answers
3,452 views
If the absolute value of a negative number is 2.78, what is the distance on the number line between the number and its absolute
4 answers
1,402 views
For all real numbers a and b, 2a • b = a^2 + b^2
5 answers
575 views
What types of problems can be solved using the greatest common factor? What types of problems can be solved using the least
39 answers
16,297 views
CAN SOMEONE CHECK MY ANSWERS PLEASE?
What types of problems can be solved using the greatest common factor? What types of
4 answers
1,615 views
Enter the sum of numbers as a product of their GCF.
27 + 36 The sum of the numbers as a product of their GCF is ____ * (____
5 answers
2,324 views
Enter the sum of numbers as a product of their GCF.
27 + 36 The sum of the numbers as a product of their GCF is ____ * (____
3 answers
679 views
Juanita runs every seventh day and swims every fifth day. If Juanita runs and swims today, in how many days will she run and
12 answers
2,519 views
Juanita runs every seventh day and swims every fifth day. If Juanita runs and swims today, in how many days will she run and
5 answers
930 views
An object starts from rest an under a constant acceleration has traveled a displacement of 30.5 meters when it reaches a certain
0 answers
533 views
Originalists often hold that it is incorrect to use the Equal Protection Clause of the Fourteenth Amendment to strike down laws
2 answers
659 views
How could you explain this statement "An ecosystem is constantly changing ,yet it remains the same."
1 answer
886 views
In general, if lim x->a m(x) does not exist and
lim x->a n(x) does not exist, is it true that lim x->a [m(x)+n(x)] does not
0 answers
465 views
my teacher gave me this question for review and i don't know how to do it!! HELP!!!
A ball is thrown upwards, from a building.
1 answer
727 views
A container is fabricated from steel having a thickness of 0.500 inch and an average density of 7.85 g/cm3. (You may assume that
3 answers
637 views
The inner planets- Mercury, Venus, Earth and Mars- were formed by
a. Supernovas b. repeated collisions of asteroid sized debris
5 answers
1,962 views
The equation of the line joining the complex numbers -5 + 4i and 7 + 2i can be expressed in the form az + b*overline{z} = 38 for
1 answer
1,774 views
1.In what ways did groups of natives change the environment they lived in? Use at least 3 examples of tribes in North America.
2.
3 answers
580 views
Consider the function (4)/(1-2^(1/x))
1. Estimate the right-hand limit, lim x->0+ f(x). Back up your answer by making an analytic
3 answers
579 views
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 5.3-L bulb, then filled
4 answers
6,644 views
Explain how nurse leaders can use professional organizations to stay
aware of political actions in the nursing and health care
1 answer
587 views
Select a professional organization in the nursing industry. Researching a current political issue addressed through the
2 answers
1,059 views
how would you prepare 250 ml of 0.69m al2(so4)3 solution from a 2.0 al2(so4)3 stock solution
1 answer
1,154 views
The command prompt found on Windows 7 and Windows 8 is very similar to the interface of what past operating system?
1 answer
695 views
Which of the following processes produces haploid gametes?
A. Meiosis B. Fertilization C. Mitosis D. Intion I think A
2 answers
926 views
Consider an ideal gas enclosed within a container with a moveable piston and a valve through which additional ideal gas can be
2 answers
831 views
An ideal gas is contained within closed box behind a removable wall. The walls of the container are insulated, so that no heat
2 answers
1,311 views
The drawing shows three cylinders that have the same length and cross-sectional areas, but each is made of different material.
1 answer
910 views
Three spheres are made from the same material, but each has a different size and temperature. The radii of spheres A, B, and C
0 answers
623 views
How do I find x for this equation? I think I should get e^(something).
Thanks in advance! 3x^2+4lnx+4=0
2 answers
389 views
The ratio of the distances a pitching wedge and an 8-iron will drive a golf ball is 4 to 5. If a golfer averages 140 yards with
3 answers
905 views
The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office
1 answer
994 views
The mean cost of domestic airfares in the United States rose to an all-time high of $385 per ticket. Airfares were based on the
5 answers
12,085 views
fine the slope intercept equation of the tangent line to the curve by the relation 5x^3+10y^2=8x^5+2y at points (1,1)
0 answers
390 views
find the derivative
f(x)= (2^x-e^x)/(2^x+e^x)
0 answers
298 views
find the derivative
F(x)=tan(ln(5x))
0 answers
319 views
he drawing shows a steel ball rolling along a flat surface at constant velocity from point A to point B. A magnet exerts an
0 answers
558 views
Two satellites are orbiting the Earth in stable circular orbits. Satellite A has a mass m and is located at a distance 2r from
0 answers
1,730 views
A box containing supplies is vertically lowered at constant speed by a rope from a hovering helicopter. Consider the following
0 answers
1,098 views
The drawing shows a steel ball rolling along a flat surface at constant velocity from point A to point B. A magnet exerts an
0 answers
598 views
A model airplane is flying in a horizontal circle with a constant speed. The initial radius of the circle is R. The boy holding
0 answers
887 views
A model airplane is flying in a horizontal circle with a constant speed. The initial radius of the circle is R. The boy holding
0 answers
1,011 views
0.145258-0.145258x = x
1 answer
225 views
Gradually increase the angle of the incline, but keep the angle low enough that the block does not slide. Select all the phrases
2 answers
1,796 views
Joe pushes horizontally on a heavy box across a rough surface at constant speed. Which one of the following statements
2 answers
1,356 views
A ball is sitting in a child's wagon and a child is holding the wagon's handle. The ball then rolls to the back of the wagon
1 answer
1,046 views
What are the differences between hypothesis testing regarding population means drawn from small and large samples
1 answer
515 views
i have a question on thin lens equation
how do i know when di is positive or negative? also i have an example: A convex lens has
0 answers
581 views
A 50kg mass and a 85kg mass are hung over a frictionless pulley what is the acceleration of the system
0 answers
430 views
Calculate the equilibrium position of a third charge of 6.79 x 10^-9 C that is positioned between an 8 x 10^-9 C charge and a 12
0 answers
629 views
Calculate the gravity on a planet using a pendulum that has a period of 2.45 s having a length of 1.25 m.
1 answer
485 views
What's a good introduction on this topic?
Should the Canadian health-care system be privatized?
2 answers
487 views
In triangle RST, angle S is a right angle and cdc R=13/12. What is Tan T?
answers: 13/5, 12/13, 12/5, 5/12
1 answer
2,354 views
-2x-2y=4 2y=-2x-4 Identify the solution
1 answer
366 views
Consider the observable M that corresponds to a measurement in the sign basis where the measurement value is 3 if the outcome is
2 answers
622 views
Determine whether the given series converges or diverges, and find the sum if it converges. I don't understand, help!! Thnx!
1)
1 answer
1,083 views
The gravitational field strength at 35700km above earth is .225N/kg. what is the tangental velocity of a 100000kg communication
0 answers
491 views
a 2000kg car approaches a 1000m radius curve. If the amount of friction is 1800 N and it have velocity of 30m/sec will the car
0 answers
451 views
how fast must a .11kg toy car travel at the top of a loop in toy track not to fall off if the radius of the loop is .15m?
1 answer
409 views
Given the equation y=3sin(3x-180)-2 state the domain, range, amplitude, period, and phase shift of the cycle.
1 answer
914 views
The average depth of the water in a port on a tidal river is 4m. At low tide, the depth of the water is 2m. One cycle is
0 answers
764 views
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