# Posts by Mona

Total # Posts: 194

**Physics**

A boy 12.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. If the boy throws the ball horizontally at 8.50 m/s, (a) how fast must the dog run to catch the ball just as it reaches ...

**math**

A car that weighs 15,000 N is initially moving at 60 km/hr when the brakes are applied. The car is brought to a stop in 30 m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force

**Math**

Ethan's quiz average in spelling for the past 7 quizzes is 93. How many total points does he have for the 7 quizzes?

**American Government**

thanks

**American Government**

thank 100%

**Physics**

a transverse wave on a string has a period of 0.1 s and an amplitude of 1 cm. What is the maximum transverse acceleration at any point along the string?

**Advanced physics**

A child on a swing is traveling at 2 m/s as she passes through the lowest part of swing’s arc. What is the period of the motion?

**Physics**

A child on a swing is traveling at 2 m/s as she passes through the lowest part of swing’s arc. What is the period of the motion?

**accounting**

debit cash $19000 debit equipment $6000 credit owner's equity $25000

**Calculus**

You find q by taking the derivatives of both R(q) and C(q) and setting the derivatives equal to each other. R'(q)=750 C'(q)=10q q=75 Total profit is $22125, once you plug it in.

**Calculus**

I don't understand how to get q for this problem? The next steps for the problem, you just need to plug q in, but I'm not sure what to do? Do you set revenues equal to expenses? Problem: Revenue is given by R(q) = 750q and cost is given by C(q) = 6000 + 5q2. 1) At what...

**American Government**

thanks i got 100%

**American Government**

1.d an elector who does not vote for the person who the state's popular 2.senate 3.florida i got 100%

**HELP HISTORY**

u guys r wrong

**Government**

thanks i got 100% but number 8 is d.30

**American Government**

thanks yesman got 100%

**American government**

i got 100% to thank u

**american Government**

thanks got 100%:)

**american government**

its right

**American Government**

thanks soooooooo mush there all right i got 100%

**aps rk puram .math**

Q=if a three 3 digit units digit tense digit hundreds digit are in the ratio 1:2:3.if the difference of original number and the number obtained by reversing the digit is 594.find the no.

**Government**

reed is right got 100%

**American government**

all are right 100%

**American Government**

1.A 2.A 3.B 4.C i got 100%

**American Government**

becky is right

**American government**

number 2 is B

**chem**

Consider the reaction: CO(g)+Cl2(g)⇌COCl2(g) Keq= 2.9×1010 at 25 ∘C A 5.89 −L flask containing an equilibrium reaction mixture has [CO]= 1.9×10−6 M and [Cl2]= 9.3×10−7 M . How much COCl2 in grams is in the equilibrium mixture?

**Math**

The right triangle has an angle of 53 degrees. The opposite side is 6.4cm long. What is the adjacent ?

**English**

thanks so mush but i just dont understand the last one

**Math**

Tents*

**Math**

Carla will make two twnts. She needs 9 1/2m plus two thirds of 9 1/2m for both. What is the number sentence for this question?

**Statistics**

A 10 question test is all multiple choice. Each question has four choices. Determine the mean number of questions answered correctly as well as the standard deviation for the number of correct answers if someone were to guess on all ten questions. So far, I have that the ...

**math**

Thank U so much. I understand now.

**math**

27

**math**

At the playground, the new sandbox was 9 meters wide and 3 meters long. What is the area of the new sandbox.

**math**

Thanks Mrs. Sue

**math**

Jay is going to cover his kitchen floor with tiles that are each 1 square foot. The floor is shape in a rectangle that is 4 feet wide and 9 feet long. How many tiles are needed to cover the floor.

**maths**

if the denominator of fraction is 6 more thanthe numerator if the numretor is increased by 1 and denominator is decreased by 2 new fraction becums 3/4 find the fraction

**English**

What's the conflict in the poem of A voice by pat mora?

**Physics 30**

A system containing a frictionless pulley is described in the diagram on the right (the 2.0 kg box is on the floor while the 3.0 kg box is 0.5m high) . If this system is released, what will be the momentum of: A. the 2.0 kg box when the 3.0 kg box hits the floor? b. the 3.0 kg...

**Physics 30**

A system containing a frictionless pulley is described in the diagram on the right (the 2.0 kg box is on the floor while the 3.0 kg box is 0.5m high) . If this system is released, what will be the momentum of: A. the 2.0 kg box when the 3.0 kg box hits the floor? b. the 3.0 kg...

**Physics 30**

yes

**Physics 30**

A frictionless pulley (a 2.0 kg is on the floor while the 3.0 kg is 0.5m high) . when released, momentum of the 2kg is?

**Physics**

Its right

**chem**

what is the balanced equation for aqueous zinc chloride and aqueous sodium chromate? Is it, ZnCl2+NaCrO4-->ZnCrO4+NaCl2 and how do I know if it is reactive or not?

**buisness**

because it leave people who work in germany (nokia) without job after moving from one country to another . and this of course has impact in the society

**buisness**

in 2009 Nokia decided to move from Germany ro Romania and then to china . in this question we need to decide whether it's ethical or not.or if it's just a business decision . i have been reading and and saw articales that support my opinion . i believe it was unethical...

**Maths**

a box contains 3 black balls , 7 white balls and 5 red balls . one ball is lost . the probability that a red ball is drawn is 2/7 . The colour of the lost ball is

**Calculus**

Simplify: (5x^3 + x^2 - x)/ (3x)

**Calculus**

log (base 3) x^2 = 2log(base 3)4-4log(base 3)5 And I need to solve for x.

**math**

the ratio of gasoline to oil need is 16:1 if you have 3.5 ml of oil how many ml of gasoline must you add to get the proper mixture find answer

**chemistry**

Referring to the following reaction: Pb(NO3)2 (aq) + Na2SO4 (aq) -->PbSO4 (s) + 2NaNO3 (aq) A solution of 0.114 M Pb(NO3)2 with a volume 10.6 mL is added to 12.4 mL of a solution of 0.105 M Na2SO4. Calculate the number of grams of PbSO4 that will form. I already checked out...

**fine art**

Can you please answer me clearly?

**fine art**

The elements of art are line,texture,shape/form,color,value, texture, and space/perspective. In this specific artwork, line, shape, and space is used but I want a clear answer as to how they are used. Thank you so much.

**fine art**

I mean I know what elements of art are used but I do not know how they are used.Can you please help me?

**fine art**

There was no satisfactory answer.

**fine art**

How are the elements of art used in the artwork titled "winged genie fertilizing a date tree?"

**Geometry**

Points F, E, and D are on the sides line AB, line AC, and line BC, respectively, of right triangle ABC such that AFDE is a square. If AB = 12 and AC = 8, then what is AF?

**Geometry**

In the triangle, angles ABC and ADE are right angles. If AC = 35, AE = 11, and BE = 10, then what is AD?

**math**

x1= a x2= 0 x3=1 y1=0 y2=b y3=1 So x1(y2-y3)+x2(y3-y1)+x3(y1-y2)=0 a(b-1) + 0(1-0) + 1(0-b)=0 ab-a-b=0 ab-b=a 1-1/a=1/b 1=1/a+1/b

**Science**

A dicot seed is preferred over a monocot seed to observe seed structure because? a.Distinct embryonic axis or b.Proper sepration of cotyldeons

**mrr high school**

Find the power of human heart ,which beats72 times per minute , if it does 1.5J of work every beat.

**Algebra 2**

thats not right

**chemistry**

Which term has the same numerical value for the forward reaction as it has for the reverse reaction, but with opposite sign? a. ^E ( delta E) b. Ea1 c. Ea’ d. Ea2

**moral science**

UNSCRABLE THESE WORD..ineisfsirdne; htotvulfhgrsen

**quantitative maths**

in a race A beats B by 100m. the ratio of their speeds is 5:4 . what is the length of the racecourse?

**Maths**

Two poles 13m and 18m high stand upright on a playground if their feet are 12m apart find the distance between their tops

**algebra**

2x + 1 =7

**math**

Evaluate. 8 • [5 + (18 – 7)] ÷ 4

**Time zones**

Thanks Ms. Sue!

**TIme zones**

1. If its 12 noon in Greenwich time, what time is it in Moscow, Denver? I said 3 PM. 2. If its 2:30 PM in Abidjan, what time is it in the zone labeled +7? I put 9 PM In the zone labeled -4? I put 10 AM

**History**

How did imperialism in Africa and Asia, and the value of the U.S. exports in 1870-1920 increasing support a policy of the Open Door?

**Is this right?**

Ok so i should take out the part about the ships ?

**Is this right?**

Between 1857 and 1903, the United States acquired many new territorial possessions around the globe. Why do you think so many of these new possessions were islands located in the Pacific Ocean? So that they could stop their ships there and refuel them. Also, most of the other ...

**Science/Biology/Physics**

1- a 2- a 3- a 4- a 5- c 6- a 7- c 8- a 9- b 10- b

**science**

Update ==> theta (t) = (1.20rad/s)t + (8.70rad/s^2)t^2

**science**

A uniform disk with radius 0.320m and mass 28.0kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. The angle through which the disk has turned varies with time according to è(t)= (1.20rad/s)t + (8.70rad/s^2)t^2 my...

**physics**

A body is projected vertically upwards with a speed of 40 m/s.Find the distance travelled by body in last second of upward journey?(g=9.8m/s2 neglect effect of air resistance)

**Algebra**

thanks

**English**

thanks

**Chemistry 104**

The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 11.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode.

**Chemistry 104**

I am doing something wrong I keep getting the wrong answer

**Chemistry 104**

A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?

**Algebra**

x -1 -1 -2 -2 y 0 -1 2 3Part A: Does the table represent a relation that is a function? Justify your answer by using the values shown in the table. (4 points) Part B: The function f(h) shown below represents the number of tennis matches Diana won each month when she practiced ...

**statistics**

A neuropsychologist is interested only in studying the most deviant portion of this population, that is, those individuals who fall within the top 10% and the bottom 10% of the distribution. She must determine the ages that mark these boundaries. What are these ages?

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Plaese help!!!!!

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.

**chemistry**

If the thyroid test requires 3.2mCi in an "atomic cocktail," how many milliliters are used to prepare the iodine-131 solution?

**chemistry**

How would you prepare 2.25L of a 3.00M solution from a 15.0M stock solution?

**chemistry**

Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found outside the bag? Check all that apply. NaCl solution albumin solution starch solution

**chemistry**

Consider a mixture of , albumin solution, and starch solutions in a dialyzing bag. The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture? Leave the dialyzing bag in the distilled water for...

**psychology**

D.implicit memories

**chemistry**

How did you get 52/3??

**Chemistry**

thanks soo mush got 100%

**Geometry-8th gr**

Thanks!

**Geometry-8th gr**

The Circumference of a circle is equal to the area of the circle. Find the radius. Thanks.

**Geometry-8th gr**

Thanks.

**Geometry-8th gr**

Find KN and LM. In triangle LKM, angle L is bisected. Line segment LK is 11, line segment KN is x-4, line segment NM is 5.4, and line segment LM is 2x + 1.3 (there is a drawing of this triangle) Thanks.