Posts by Abdul

Total # Posts: 121

chemistry
Briefly explain how the neutrons were discovered.

Albert Academy
What was the significance of the alpha -particle scattering experiment?

Physics
A force of 20N applied parallel to the surface of a horizontal table is just sufficient to make a block 4kg move on a table, calculate coefficient of friction between the block and the table.

physic
Sample 1, Original Length 250 mm and 10 mm Diameter, Length after testing 250.23 mm the force used for the test was 15KN Calculate the Stress and Strain for each of the Samples and from this and, assuming the material has remained within the elastic limit, determine their ...

Chemistry
How many ml of HCl required to prepare 5% of HCl solution in 750ml water.if HCl is 36% pure and specific gravity is 1.18g/ml?

Business Math
An investor has $ 500000 to spend. There investments are being considered, each having an expected annual interest rate. The interest rates are 15, 10 & 18 percent respectively. The investor`s goal is an average return of 15 percent in the three investments. Because of the ...

Business Math
An investor has $ 500000 to spend. There investments are being considered, each having an expected annual interest rate. The interest rates are 15, 10 & 18 percent respectively. The investor`s goal is an average return of 15 percent in the three investments. Because of the ...

Business Math
An investor has $ 500000 to spend. There investments are being considered, each having an expected annual interest rate. The interest rates are 15, 10 & 18 percent respectively. The investor`s goal is an average return of 15 percent in the three investments. Because of the ...

Business Math
An investor has $ 500000 to spend. There investments are being considered, each having an expected annual interest rate. The interest rates are 15, 10 & 18 percent respectively. The investor`s goal is an average return of 15 percent in the three investments. Because of the ...

Chemistry
I want answer

Chemistry
0.4 moles ofpcl3 and 0.3 moles of pcl3 added to access ofC2H5OH then maximum no of moles obtained

Chemistry
0.4 moles of pcl3 and 0.3 moles of pcl3 added to access ofC2H5OH then maximum no of moles obtained

physics
A highway is being constructed to accommodate traffic for speeds of 22.8 m/s. If the angle of the bank is 6.28° and there is no friction force, what is the highway's curve radius?

Science
A 55 kilogram person and a 65 kilogram person climb 8 meters up a flight of stairs in 10 seconds. Compare power used by each person

Physics
An artillery gun on a battle ship is capable of launching a shell at a vertical velocity of 400 m/s. A target is 40 Km away and 500 m above the ground. what is the maximum range the target can be away from the gun if the target is 500 m above the ground?

physics
Four charges are placed at the four corners of a square of side 15 cm. The charges on the upper left and right corners are +3 μC and -6 μC respectively. The charges on the lower left and right corners are -2.4 μC and -9 μC respectively. The net electric ...

Math
kma is corret

South bank uni
How many points of inflexion dose the function y= x^4 have

history.geography.life sciences.maths
What career can i study

Math, geometry
yes

physics
AJT

computer
code for a program to display a payroll in C++ to calculate the salary and bonus % show the name, age and rank.

Math
Atop 50m tower, Jack sees smoke in two areas. One is on a bearing of 40degrees with an angle of depression of 8degrees, and the other on a bearing of 205degrees with and angle of depression of 13degrees. How far apart are the smoke sources? I'm not sure how bearings work ...

math
An arithmetic series consists of five terms; the second term is 7 and the last term is 22. write out the full series.

Maths
An arithmetic series consists of five terms; the second term is 7 and the last term is 22. write out the full series.

Chemistry
Vitamin K is involved in normal blood clotting. When 2.32 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 7.78 °C. The freezing point and Kf constant for camphor can be found here. Calculate the molar mass of vitamin K.

Maths
110 members of a sports club play atleast one of the games, football, basketball and volleyball. If 20 play football and basketball only, 15 play football and volleyball only, 26 play basketball and volleyball only, x play all the three games, 2x each play only one game, how ...

biology
why meiosis is named as meiosis 1and2?

math
tam75/2

Chemistry
carry out the following conversions.Enter your answer in scientific notation a)232 amu to grams (b)135 amu to kilograms (c)3.03 amu A to meters (d)3.19 A to nanometers

chemistry
calculate the density of a solid if a cube meassuring 2.04cm on one side has a mass of 124g ......................g/cm3 calculate the mass of a cube the same substance measuring 7.97cm on one side enter your answer in scientific notaation ..................x10 g

chemistry
Given that PVnR=T, solve for n if P = 36.0, V = 8.6, R = 0.08, and T = 200

chemistry
Rearrange and solve the following equation for λ: hvλ=mv2

chemistry
You weigh an empty dish and find its mass to be 48.0 grams. After you add a volume of salt water to the dish the mass of the dish and salt water is now 74.0 grams. After 100% of the water has been evaporated, the mass of the dish and the remaining salt is 52.5 grams. What is ...

math
You have a box which contains only red marbles and blue marbles. The mass of one red marble is 16 grams, while the mass of one blue marble is 20 grams. If the box contains 21 red marbles and 18 blue marbles, what is the total mass of the marbles in the box?

math
If the average chicken lays 6 eggs in 7 days, how many chickens on average are needed to obtain 163 eggs per day?

math
Given that a - c = P, solve for P if a + b = 49 and b + c = 13

chemistry
The average cooling rate of a cup of coffee is 24 °C per minute, and you can begin to sip the coffee when it is 60 °C. How long must you wait before you can begin to sip the coffee if the initial coffee temperature is 156 °C?

chemistry
Density (d) is mass (m) divided by volume (V) (d = mV). Mass is typically measured in grams (g), while volume is typically measured in milliliters (mL). How much volume will 550 g of a solution with a density of 1.10 g/mL occupy?

Physics
I found my mistake thanks

Physics
I got an answer of -86400n but the answer is 6700n

Physics
What is the average braking force required of a 1200kg car in order for it to come to rest from 60km/h in a distance of 25m Physics - Damon, Monday, September 1, 2014 at 6:51am Vi = 60 km/h (1 h/3600 s)(1000 m/km) v = Vi + a t 0 = Vi + a t t = -Vi/a d = Vi t + (1/2) a t^2 25...

Physics
What is the average braking force required of a 1200kg car in order for it to come to rest from 60km/h in a distance of 25m

History
b and c is correct

chemistry
When a mixture of 13.0g of acetylene (C2H2) and 13.0g of oxygen gas is ignited, the resultant combustion reaction produces carbon dioxide and water. What is the limiting reactant? any helper

english
correct these paragraphs Most Americans take the humble hamburger for granted. In actuality, it has a long and interesting history. The burger originated in Russia during the Middle Ages. When a group of Mongolian Tartars shredded some raw meat scraps and ate them. Later they ...

english
re(ms.sue) so how would i correct the paragraph?

english
can someone help take out the fragments Most Americans take the humble hamburger for granted. In actuality, it has a long and interesting history. The burger originated in Russia during the Middle Ages. When a group of Mongolian Tartars shredded some raw meat scraps and ate ...

physics
police officer in a patrol car parked in a 70km/h zone observe a passing automobile travelling at a slow. constant speed. believing that of the automobile might be intoxicated the officer starts his car acceleration uniformly to 9km/h in 8s. and maintaining a constant velocity...

school of engineering
A train of mass 200 tonne travelling at 140 km/hour applies the brakes fiercely, so that the brakes lock and the wheels slide along the rails. It stops after sliding 1000m. Calculate: (i) The acceleration, (ii) The longitudinal force on the rails, (iii) The coefficient of ...

school of engineering
A train of mass 200 tonne travelling at 140 km/h applies the brakes fiercely , so that the brakes lock and the wheels slides along the rails.it stops sliding 1000m. calculate. 1. The acceleration. 2. The longitudinal force on the rail. 3. The coefficient of friction between ...

Calculus I
If y^3 + y^2 = 7x^2 + 224 and y(2) = 6 then y'(2)= [???]

phyiscs
A car has an acceleration of 0.5g. calculate the time for the car to accelerate from 10m/s to 25m/s

school of engineering
A train of mass 200 tonne travelling at 140 km/h applies the brakes fiercely , so that the brakes lock and the wheels slides along the rails.it stops sliding 1000m. calculate. 1. The acceleration. 2. The longitudinal force on the rail. 3. The coefficient of friction between ...

school of engineering
a motor of mass 1500 kg accelerates from 50 km/h to 100 km/h in 10 seconds.calculate. (i)The acceleration in metre/second2. (ii)The distance travelled. (iii)The force on the vehicle.

bio152
the logistic population growth model, rN[(K-N)/K], describes a population's growth when an upper limit to growth is assumed. As N approaches (numerically) the value of K, additions to the population

bio 106
k list various types of ethnicities and their food or products and plants used to make them

bio 106
Look for the ethnic section (e.g., Hispanic, Chinese, Italian, Jewish, etc) of the supermarket and list the cultures, the main foods and the plants they are made from. name the culture, the food or product and the plant used to make it. its a research paper. just act like you...

bio 106
Imagine that you are plant hunter embarking on a safari that takes you to the far reaches of your neighborhood supermarkets. In the aisles of your grocery store, see how many plants and plant products you can find to answer the following questions. Look for the ethnic section...

bio 106
List foods that you find in the store from each plant part listed below: a. roots or underground stems b.leaves c.seeds or nuts d.. flowers or flower bud e.fruits f. aboveground stems

bio 106
Imagine that you are plant hunter embarking on a safari that takes you to the far reaches of your neighborhood supermarkets. In the aisles of your grocery store, see how many plants and plant products you can find to answer the following questions. Look for the ethnic section...

bio 106
. Look for the ethnic section (e.g., Hispanic, Chinese, Italian, Jewish, etc) of the supermarket and list the cultures, the main foods and the plants they are made from:

bio 152
Describe a series of small habitats that exist within 10 or 20 kilometers of your house and which might be subject to MacArthur and Wilson’s theory of island biogeography.

Physics
A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The spring has a force constant of 1.64 kN/m. How much is the spring compressed when a object of mass m = 2.35 kg is placed on top of the spring and the system is at rest?

Life science, history, geography, and maths literacy
Ask for the advices

Information Systems
I'm looking for the answer also.

physics
A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on either side of the canal. Each horse pulls with a force of 460 N at an angle of 17° with the centerline of the canal. What is the net force on ...

physics
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. The ball is hit with an initial velocity of 23.0 m/s at an angle of 54.0° above the horizontal. How high will the ball rise? . m ...

physics
At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 9.1 m until, at t = 1.84 s, it is traveling east. The car does not alter its speed during the turn.

Engineering Math
A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach 98dB(A). ...

Engineering Math
A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach 98dB(A). ...

Biology
Describe a series of small habitats that exist within 10 or 20 kilometers of your house and which might be subject to MacArthur and Wilson’s theory of island biogeography.

math
42.42

chemistry
Thank you!

chemistry
I know it is NOT d)[(1/2)(1/2ˉ)1ˉ] for Image One and A)(1ˉ02) for image two. One submission left!

chemistry
Name the following crystallographic features below using proper crystallographic notation. Image One a)[2ˉ21] b)[1ˉ12ˉ] c)[1ˉ1(1/2)] d)[(1/2)(1/2ˉ)1ˉ] Image 2 A)(1ˉ02) B)(21ˉ0) C)(201) D)(1ˉ02ˉ)

Math
Ans 0.3673

algebra
6byears;(7b+2y)years

math
x = 14,y = -2

chemistry
1170

chemistry
1305.41 26.78

business
Quality Management Plan for followoing case: You are working for We Are Big, Inc., an international firm with over 100,000 employees located in several different countries. A strategic goal is to help improve the environment while increasing revenues and reducing costs. The ...

business
I need how to write Quality Management Plan

math
The cylinder x2+y2=16 divides the sphere x2+y2+z2=100 into two regions I (for the region inside the cylinder), and O (for the region outside the cylinder). Find the ratio of the areas A(O)/A(I) .

Maths
Simplify 5*+*

biology
What is ecosystem?

math finance
Consider the N-period binomial model and processes Y0,Y1,...YN and C0,C1,...CN. Suppose that Y is Markov and C is deterministic (i.e., Cn does not depend on the coin flips ù). a) Show: If Cn doesn't equal 0 for all n, then C0Y0,C1Y1,....,CNYN is Markov. b) Give an ...

physics
picture webassign . net/pse/p28-23.gif The ∑ symbol is just epsilon for the voltage in the picture

chemistry help asap
how would you prepare 60.0 ml of 0.2 M HNO3 from a stock solution of 4.00 M HNO3?

chemistry help asap
what is the molarity of a solution prepared by diluting 500ml of a 6.0 M solution to 750 ml?

ar ALABAT ACDEMY GOVERNMENT subject
How does the legislature check the power of Executive organ of government in a persidential system

Calculus
I would to see answer for this question

Islamic
What is velt

Math
y+19=9 That means some number added to 19 equals 9. So we subtract 19 from 9 which gives us -10.

3rd grade math
1753 3531 5731 7351

4th grade math
450,000

fith grade math
use a calculator and you get 1323

8th grade math
1/4 is the answer

4th grade math help!
under estimate

5th grade algebra
h=7

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