Ahmad

This page lists questions and answers that were posted by visitors named Ahmad.

Questions

The following questions were asked by visitors named Ahmad.

How does a doorbell work?

i need to choose a paint where design element and visual element in 1 paint could you help me to choose that paint and telling me what elements in it thank you

I am having trouble with some of this question. 'A student standing at the top of a cliff shoots an arrow from a height of 30.0 m at 25.0 m/s and an initial angle of 32.0 degrees above the horizontal. b. How high above the landscape under the cliff with a...

1. Use the following information about a group of college students: Fifty percent are taking Algebra. Sixty percent are taking Biology. Thirty percent are taking both Biology and Algebra. A student from the group is selected at random, calculate the follo...

The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

Two blocks with masses m1 = 7 kg and m2 = 4 kg are connected with a rope and move on two surfaces of a right-angled wedge as shown in Fig. 6.6 Given that θ1 = 37 °, θ= 53°, μ= 0.2, and μ= 0.1, find the acceleration of the blocks

Calculate the amount of heat required to take 3.00kg of ice at -10 degrees Celsius to 115 degrees celsius.

Lab on Determining hard water Not sure if I answered this currently, not completely sure how to explain either. If a student has a non-zero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated [EDT...

calculate the pH of a 0.50 m solution of HCN. Ka for HCN is 4.9*10^-10 (The chemical equation for this.)

Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s 2 . Answer in units of N What is the weight on the moon? Answer in units of N What i...

a compound contains only carbon hydrogen and oxygen analysis of a sample showed that it contained by mass 53.4% carbon and 11.1% hydrogen . what is the simplest formula for this compound .. step by step plese

Two springs, each with spring constant 20 N/m, are connected in parallel, and the combination is hung vertically from one end. A 10-N weight is then suspended from the other end of the combined spring. How far does the combined spring stretch as it comes...

A 22-N force, parallel to the incline, is required to push a certain crate at a velocity of 6.1 up a frictionless incline that is 55° above the horizontal. The mass of the crate is:

The oxidation number of kromium in k2Cr2O7

The parallel sider of a trapezium are 25 cm and 11 cm, while its nonparallel sides are 15 cm and 13 cm. find the area of the trapezium.

The volume of a block of a gold is 0.5 m sqare. if it is hammered into a sheet to cover an area of 1 hectare,find the thicness of the sheet.

2 water pipe inlets pumping water into a tank. Pipe "A" fills up the tank in 30 minutes. Pipe "B" fills up the tank in 90 minutes. Assuming both pipes are on. How long it will take to fill up the tank.

Myerson borrowed $8,500 at 9% ordinary interest for 200 days. After 120 days, he made a partial payment of $4,000. What is the final amount due on the loan?

Acid in vinegar has pka value of 1.85 x 10^-5 at 25oC find the pkb value of its conjugate base?

A 8.8-kg object is moving at 5.3 m/s. A 7.4-N force is applied in the direction of motion and then removed after the object has traveled 4.7 m. The work done by this force is:

A 8.4-kg block is lifted vertically 9.0 m at constant speed by a boy. The work done by the boy is about:

x is partly constant and partly varies as y^2 when y =11,x=52.8and when y = 5 and x = 8 find (a) equation connecting x and y (b) y when x = 105.6

A cross-section of a parabolic reflector and bulb is located at the focus is 16cm.find the equation of the parabola and the diameter of the opening (R,S),11cm from the vertex

If 20dm³ of hydrogen where collected over water at 17°C and 797knm² pressure A. Calculate the pressure of a drying hydrogen gas at this temperature

Write down the importance of rivers in pakistan?

The density of 95.2 % (weight percent) of H2SO4 is 1.53 g/ml.calculate the molarity of this solution.

You are the IT manager of an Elementary School. The school is adding computers that have been donated by a local company. An extended star topology has been suggested, using some hubs that are available. The school agrees with your idea of adding a switch...

A relative density bottle weight 20g when empty, 80g when field with water and 100g when with a liquid. Fine the relative density of liquid.

A body weigh of 0.26N in air. When total emmers in water weight 0.16h and 0.18n in another liquid. Calculate the relative density of of liquid

A girl spent 1/4 of her money on bus fare and 2/3 of the remaining on drink.what fraction of her original money was 1- spent 2- left

out of 80 student in ss3, each student offers at least one of chemistry and physics. if 50 students off chemistry and 42 student offer physics, how many of students offer chemistry only

A 0.25 kg block oscillates on the end of a spring with a spring constant of 100 Nim, If the oscillation is started by elongating the spring 0.1 m and giving the block a speed of 3 m/s then the amplitude of the oscillation is:

Two objects were projected vertically upwards at different time with a speed ofTwo objects were projected vertically upwards at different time with a speed of 80ms-¹ and 100ms-¹ respectively.if the time interval is 2 sec,when and where would they meet.? 6...

a solution contains 1.569mg of CoSO4 (155g/mol)per milliliter. calculate the volume of 0.009275M Zn needed to titrate the excess reagent after addition of 50 ml of 0.007840M EDTA to a 25ml aliquot of this solution

Remembering that the Latin prefix "non" means “not, '' or the reverse of” use the context clues provided in the passage to determine the meaning of nonsense. Write your definition of "nonsense" here and tell how you got

The path of water sprayed from a fountain is modeled by h=−4.9t2+58.8t, where h is the height of the water in meters after t seconds. Determine the maximum height of the water and the amount of time it takes the water to reach the ground.

What is observed when ammonia gas is highly soluble in water

What would be observed when the boiling point of chlorine is lower than that of iodine

Derive the square root of 622521

Cube root of 0.0072 ×81.3^2/root 23140 Correct to three significant using logrthimc table

Answers

The following answers were posted by visitors named Ahmad.

ROFL YOU'RE STUPID we're doing this in class right now.... :/

Yes , what i mean is for 1.Visual element (line,shape and mass, color, light, texture and pattern, space,time and motion) 2.Design element ( unity and variety, balance, emphasis and subordination, scale and proportion, rhythm) So what i need is to find on...

Okay but what are the elements in it? i mean in that painting for visual element is it the color ? and for design element is it balance?

I can see the motion which is the line for visual element and i can see the balance in design element... Am i right?

Okay! Thank you so much

Express the given quantity as a single logarithm. ln(1+x^8)+ln(x)- ln(sin(x))

Thanks you Dr.Bob222. So the overall idea is that dissociation decreases molar mass and association does the opposite when a solute dissolves in a solvent. (How do you identify if either reaction occurs? Just wondering.)

So in this case, that a small amount of your unknown failed to dissolve in the t-butanol, it would effect the molar mass, just depending on the mass of both substances?

I or we is the answer.

ans is bias-free language.

I want the answer. Where is it ?

answer is 1,638,400 18 generations original is not included

60 kg * 5 m/s + 40 kg * 0 m/s = (60 kg + 40 kg) * v_final 300 kg*m/s = 100 kg * v_final 3 m/s = v_final

A bear was seen near a campground. Searchers were dispatched to the region to find the bear. A)Assume the bear can walk in any direction at a rate of 2 miles per hour. Suppose the bear was last seen 4 hours ago. How large an area must the searchers cover?...

3 sailboats to 6 fan boats

Chemical property

A movie cost 3,254,107 to produce.what digit is in the hundred thousands place?

A good leader must fulfill all campaign promises by so doing people will trust him and his follower

Need calaculation step by step

I need the simplest step to. Solve step by step

Hi.deer how can I got good ststiking for any surface .when I pliting spray chrome .and what is a good activouter. Thanks

You have saved $130 for a new pair of skis. They have a regular price of $189. They have been reduced by 30%. .? Show your work what is the sale price of the skis

If some volatile impurities in the crucible are not burned ofT in step I but are renmoved in step l, is the reported percent mass of water in the hydrated salt too high or too low? Explain

x/5 = 2x-9 x = 10x - 45 45 = 10x - x 45 = 9x 45/9 = x 5 = x

Thanks Zara 😎

A relative density bottle weight 20g when empty, 80g when field with water and 100g when with a liquid. Fine the relative density of liquid.

Voltage source is required in this question.

Show me solution

A 20 inch board is 4 times to be cut into three pieces so that the second piece is as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece, find the lengths of all three pieces....

I guess the answer is 0.157 MeV.

I need an answer

The efficiency of a machine is 60℅,find In joules the work done by a student using the machine to rise a load of 150kg through a vertical distance or 2.5 m (g=10m/s2)

Two objects were projected vertically upwards at different time with a speed ofTwo objects were projected vertically upwards at different time with a speed of 80ms-¹ and 100ms-¹ respectively.if the time interval is 2 sec,when and where would they meet.?

Two objects were projected vertically upwards at different time with a speed ofTwo objects were projected vertically upwards at different time with a speed of 80ms-¹ and 100ms-¹ respectively.if the time interval is 2 sec,when and where would they meet.? a

Thank you for answering my question

Is assignment please help me If the time town A (long 90% w) is 6:00pm an Wednesday what will the time and day be at town B (long 120% E) showing your work dearly

Kelyse's preschool tuition is $180 per week. She receives a small discount for honor roll, $50 per month. Her grandparents help out and pays 20% of her tuition. How much do her grandparents pay?

When the product is 1/2 and reactant is also 1/2 , Then, Kc=1/2÷1/2 =1/2×2/1 = 1 So, as half reactants have changed to product so the completion percentage is 50%. Note: you can't take both 1 because you can't say that products are formed without reactant...

*Heat to concentrate the solution *Allow the concentrated solution to cool to form Crystal's *Filter the crystals *Wash and dry crystals between filter paper