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Questions (46)
If the speed of the skateboarder at point A is v=1.2m/s, what is her speed at point B? Assume that friction is negligible. Point
1 answer
146 views
If the speed of the skateboarder at point A is v=1.2m/s, what is her speed at point B? Assume that friction is negligible.
Point
1 answer
181 views
A conical water tank with vertex down has a radius of 13 feet at the top and is 27 feet high. If water flows into the tank at a
1 answer
643 views
Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats.
2 answers
802 views
A group of 10 students are on
a field trip when their bus breaks down 40 miles away from the school. A teacher takes 5 of them
2 answers
1,465 views
1+2= 5
3+ 4 = 11 5+6 = 17 7+8=? i think 23?
1 answer
281 views
A bike costs £186. The price is to be reduced by 33 1/3% in a sale.
A) calculate how much you would save by buying the bike in
2 answers
767 views
Think of three things you can see in the sky (nouns). Add two adjectives to each one. Use a thesaurus to help you if you are
1 answer
510 views
Mr and Mrs Boyden take their 3 children to a leisure park.
They buy tickets for the whole family. The cost of an adult ticket is
2 answers
2,640 views
The pattern 234562345623456.... is continued to form a number with one hundred digits. What is the sum of all one hundred
1 answer
478 views
please help me to revise this paragraph
I’m fed up with the mistakes that our current accounting firm makes. I run a small
5 answers
3,144 views
please help me to revise this paragraph
I’m contacting you about your recent email request for technical support on your cable
5 answers
885 views
1.In which temperature of water did the food coloring diffuse faster?
2.Using your knowledge of the motion of molecules, explain
4 answers
5,957 views
The force of gravity on an object on the surface of Mars is less than the force of gravity on an identical object on the surface
8 answers
1,046 views
What factors contributed to the expansion of railroads in the United States during the 19th century?
0 answers
3,852 views
Scenario:
Write a program that will determine the average mark of each student. The average is dependent on the subjects which
2 answers
747 views
the hundred thousands digits of a six digit number is 3 more than the thousands digit which is twice the ones digit give at
2 answers
525 views
On a 100000 dollars mortgage loan for 10 years at 4.5% interest rate what would be the monthly payment (including principal)
1 answer
551 views
A solution is prepared by adding 1g of sugar mannitol (MW 182.2g/g-mole) in 100g of water at 20◦C. (a) Assuming that mannitol
1 answer
726 views
identify and explain at least one real-world application of mathematical concepts covered in the text, your job or daily life,
1 answer
1,192 views
One ship is 20 miles due North of another ship, and is sailing South at the rate of 10 miles per hour. The second ship sails
0 answers
725 views
An airplane is flying horizontally with a constant velocity of 160 m/s at an altitude of 5100 m when it releases a package.
a.
1 answer
723 views
A 2kg hallow sphere of a radius 6cm starts from rest and rolls without slipping down a 10 degree incline. if the length of the
1 answer
669 views
The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the
2 answers
608 views
Car travels up hill at a constant speed of 50 km/h and returns down the hill at a constant speed of 65 km/h. Calculate the avg
1 answer
1,022 views
Highway speed limit increased from 55 mi/h to 65 mi/h, how much time is saved on a 435 mile trip if you travel at the new speed
1 answer
618 views
A tortoise can run at a speed of 20 cm/s and a hare can run exactly 20 times as fast. In a race, they both start at the same
1 answer
1,524 views
Stan takes a trip, driving with a constant velocity of 81.5 km/h to the north except for a 22 min rest stop. If Stan's avg
1 answer
849 views
An antelope has traveled 1.60 km at avg speed of 67.0 km/h. The antelope speed during the first half of the distance is 88km/h.
1 answer
1,452 views
According to the experiment
procedure, given that the NaOH solution has a concentration of 0.100M, and that the vinegar (acetic
0 answers
617 views
2 birds fly from their nest to get to a certain spot(food) in a straight line,from opposite directions (east-west) Both fly 60
0 answers
512 views
Consider the evaporation of methanol at 25.0 c: CH3OH(l)-- CH3OH(g)
I figured out that Delta G is 4.3 kJ. Find the Delta G at 25
1 answer
3,978 views
Maximize P = 16x + 80y subject to these constraints:
2x + 20y ≤ 430 4x + 70y ≤ 1400 8x + 30y ≤ 980 10x + 10y ≤ 1000 4x +
0 answers
663 views
Delta Software is considering a new project whose data are shown below. The equipment that would be used has a 3-year tax life,
1 answer
729 views
Why did New France have a hard time attracting settlers? (B) What economic activities were profitable in New France?
0 answers
477 views
A 74 kg adult sits at one end of a 8.5 m long board. His 35 kg child sits on the other end.Where should the pivot be placed so
3 answers
1,636 views
The demand and supply curves for an import-competing industry in a country are given by: D = 500 – 10P, S = 100 + 10P.
0 answers
745 views
If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take
1 answer
678 views
Please help in unscrambling the following math vocabulary:
TSREECVI DYNRCEIL YESHENOTUP Thanks!
1 answer
519 views
A 0.370mol sample of a metal oxide (M2O3) weighs 55.4g.
How many moles of O? How many grams of M? And what is the unknown element
1 answer
2,707 views
1) Solve for x and check
Radical (x^2-10x)=3i 2) Simplify (5+ Radical 2)/(5-Radical 2) 3)describe the nature of the roots
3 answers
660 views
Question Details:
A crate of mass1 on a frictionless inclined plane is attached to another crate, mass2 by a massless rope. The
2 answers
1,861 views
The rotor is an amusement park ride where people stand against the inside of a cylinder. Once the cylinder is spinning fast
2 answers
2,027 views
I need help with a question to do with ratios and electron dot diagrams. Can anyone help me? PLEASE
1 answer
503 views
The equilibrium constant Kc equals 5.90 for the reaction
CH3COOH + C2H5OH <==> CH3COOC2H5 + H2O Find the molar concentrations of
0 answers
940 views
Carbonyl fluoride, COF2, is an important intermediate for organic fluorine compounds. It can be prepared by the following
0 answers
1,355 views
Answers (29)
We were
Very
1 all above 2 facial expressions and body movement 3 I SICK shake head from side to side 4 raising your eyebrows
Thx tempest
Actually both are physical changes because in 1, there is no chemical change and in 2, it is a metallic bond which I think is a physical change.
I think number 1 is physical and 2 is chemical.
I've got the answer now
Thank you so much. I asked one of my friends to explain it to me the other day but I was so confused. Thank you.
I don't know the answers yet putting them later Use math papa equation solver!
Just 2
this link was literally no help you narc
more concise please
less negative and formal. thanks
In a recent study, 25 males used a new weight-loss supplement, and all but 6 of them experienced weight loss after two weeks. In the same study, 100 females used the same supplement, and all but 31 of them experienced weight loss after two weeks. Fill in
n a recent study, males used a new weight-loss supplement, and all but of them experienced weight loss after two weeks. In the same study, females used the same supplement, and all but of them experienced weight loss after two weeks. Fill in the blanks of
why did you put square root of 10 in the denmntor? the formula is Ax1+by1+c/+squareroot of A^2+B^2 SUBSTITUTING THE X AND Y IT WILL YOU A REAL NUMBER -
the 2nd the answer is 159.95
FOR THE 1ST THE ANSWER IS 154.1
A number written in scientific notation has to be between 1 and 10. The 10 to whatever power tells you whether to move the decimal point right or left depending on whether it is positive or negative. So for number one, the answer has to be 4. The actual
What convention in the Alphabetic Index tells you to look elsewhere before assigning a code?
46 mins x 60 = 2,760 secs 2760 x .91 = 2511.6 meters 2511.6m / 1000 = 2.5116 Km
that is if you don't balance it
should be b.
im pretty sure its B
2E-3= (19E-6)(2)(DeltaT) + (23E-6)(1)(DeltaT) Simplified equation: .002= (3.8E-5) (DeltaT) + (2.3E-5) (DeltaT) More simpllified: .002= (6.1E-5) (DeltaT) DeltaT= 32.7869 Answer: 32.7869 + 29 = 61.7869
Take the derivative of both sides of the equation implicitly: d/dx(xy^3+xy)=d/dx(14) y^3+3xy^2*y'+y+xy'=0 At x=7, y=1. Thus, 1^3+3(7)(1^2)*y'+1+7y'=0 which yields y'=-2/28=-1/14 The slope of the tangent line is m which also is y'. Thus, you now have
Since the line is tangent at a point to the circle, then the point lies on the circle. Also, since you know the center, the radius is simply the distance between the points (0,0) and (3,4). a) So, radius=d=sqrt((3-0)^2+(4-0)^2)=5 b) x^2+y^2=25 c) Observe
the limit as x approaches 0 of (sinx/x) is 1. Hence, you need to get the given expression, sin3x/7x in the form sinu/u. Observe that sin3x/7x = (sin3x/3x)*(3x/7x)... multiply the numerator and denominator by 3x so we have the expression sinu/u. Thus, the
d/dx(4x^2+3x+xy)=d/dx(2) 8x+3+y+xy'=0 At x=2, y=-10, we get 16+3-10+2y'=0 Solving for y' yields y'(2)=-9/2. You are not suppose to plug in 2 for y. y(2)=-10 means that the function has a value of -10 when x=2.
