Thursday

July 28, 2016
Total # Posts: 81

**PHYSICS--**

The objective and eyepiece of an astronomical telescope are double convex lenses with refractive index 1.5. When the telescope is adjusted to infinity, the separation between the two lenses is 16 cm. If the space between the lenses is now filled with water and again telescope ...
*July 15, 2016*

**Maths**

A balloon (in a shape of a sphere) is inflated with helium at a constant rate of 125 cm^3/s. Calculate the rate of increase of the diameter when the volume is 2000 cm^3.
*July 3, 2016*

**Precalculus(Please check and help)**

last one is 3 and a half NOT 31/2
*May 1, 2016*

**Precalculus(Please check and help)**

Find the Equation. Please check the answers and help. Thanks! 1.) Ellipse with center (0,0), foci on x-axis; x intercepts; major axis of length 12, minor acis of length 8. I got : x^2/144 + y^2/64 = 1 2.) A parabola with vertex (0, 0) and focus (5, 0). I got : y^2 = 20x 3.) ...
*May 1, 2016*

**Trig**

can i use cos(55degrees) = 60/h which gives me 104.61. Please check. Thanks!
*April 18, 2016*

**Trig**

A Flagpole casts a 60 foot long shadow on the ground. The angle from the tip of the flagpole to the end of the flagpole's shadow measures 35 degrees. How tall is the flagpole? Draw a picture and label. Thank you.
*April 18, 2016*

**Pre calculus**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 18, 2016*

**Pre calc**

A small plane takes off from island A and flies in a straight line for 12 kilometers. At the same time, a sailor sitting in a sailboat who is 5 miles from the island measures the angled by from island A to the sailboat and the plane is 37 degrees. How far is the plane from ...
*April 18, 2016*

**Precalculus(another)**

A small plane takes off from island A and flies in a straight line for 12 kilometers. At the same time, a sailor sitting in a sailboat who is 5 miles from the island measures the angled by from island A to the sailboat and the plane is 37 degrees. How far is the plane from ...
*April 13, 2016*

**Precalculus**

A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance...
*April 13, 2016*

**World History**

Well in fact, my uncle knew Stalin personally. He was an avid follower of Tchaikovsky and especially loved the french horn in Peter and the Wolf. In terms of movies, he watched the Wizard of Oz in Russian . Hope this helps!
*April 13, 2016*

**HEALTH PLZ HELP MEEEEEEEEEEEE ASAPPPPPPPP**

C, D, A, B, B, C, D, A Hope this helps!
*April 12, 2016*

**yakima community college**

Dear sir, You will find that the answers are 2 degrees Fahrenheit and 94 degrees fahrenheit. Hope this helps!
*April 11, 2016*

**English**

I see a bit of a poet in you!
*March 15, 2016*

**math**

A water tank has square base of side 60 cm and height 40 cm .If there is hole in tank 8 in every second water lekage by (1÷2) cm then , a) find how much litre water will be lekage in 12 hours.
*February 24, 2016*

**math**

the iq score of employee in a firm follow a normal distribution. if the mean is 90 and standard deviation is 13. what percentage of score lies between 64 and 116?
*February 12, 2016*

**Shresta**

if cosx sinx =root2cosx, then prove that cosx-sinx =root2sinx
*February 9, 2016*

**iq**

"8th december 2015" in 5 letters without using numbers ?
*December 8, 2015*

**English**

Unscramble the sentence seldom had enough food to
*October 7, 2015*

**general**

gotilla
*October 3, 2015*

**chemistry**

Determine the volume of 200.00g of carbon tetrachloride, for which specific gravity =1.60
*September 9, 2015*

**PHYCICS**

if length of a wire increasES BY 20% THEN WHAT IS %INCREASE RESISTANCE
*August 8, 2015*

**maths**

If a car travels first 100 kms by 40 km per hour speed and next 200 kms by 60 km per hour speed,then what is the average speed.
*March 10, 2015*

**Math**

Of the vehicles on the road, 1/2 are cars and 1/8 are motorcycles. What fraction of the vehicles are not cars or motorcycles?
*January 13, 2015*

**math**

five vessels have equal capacities. Each vessel contains some milk. the ratio of the quantities of milk in these vesseles is 3:4:5:6:7 . the total quantity of milk is 60% of the combined capacity of the vessels. How many vessels contain at least 50% milk? How to frame an ...
*December 26, 2014*

**math**

Hello Steve Can this be a possible way. F + 100V = 4/5 (F + 200V) By solving F/V = 300 F/6 = 50V F + 50V = 700 F + F/6 = 700 7F/6 = 700 F = 600 So, the fixed charge is 600
*December 23, 2014*

**math**

The amount collected per month from a consumer of electrical power consists of two parts- a fixed charge for providing the service and a variable charge which is directly proportional to the number of units of power consumed. An amount of Rs. 700 is collected from the consumer...
*December 23, 2014*

**physics**

The figure shows a bicycle wheel resting against a small step whose height is h = 0.120 m. The weight and radius of the wheel are W = 20.0 N and r = 0.340 m. A horizontal force is applied to the axle of the wheel. As the magnitude of increases, there comes a time when the ...
*October 22, 2014*

**physics**

The figure shows a person whose weight is W = 670 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.
*October 22, 2014*

**physics**

The steering wheel of a car has a radius of 0.17 m, and the steering wheel of a truck has a radius of 0.24 m. The same force is applied in the same direction to each steering wheel. What is the ratio of the torque produced by this force in the truck to the torque produced in ...
*October 22, 2014*

**physics**

Five hockey pucks are sliding across frictionless ice. The drawing shows a top view of the pucks and the three forces that act on each one. The forces can have different magnitudes (F, 2F, or 3F), and can be applied at different points on the puck. Only one of the five pucks ...
*October 22, 2014*

**physics**

The drawing shows a chain-saw blade. The rotating sprocket tip at the end of the guide bar has a radius of 1.4×10-2 m. The linear speed of a chain link at point A is 3.0 m/s. Find the angular speed of the sprocket tip in rev/s.
*October 22, 2014*

**computer science**

he edit distance is the minimum number of character insertions and character deletions required to turn one string into another. Compute the edit distance between each pair of the strings he, she, his, and hers.
*October 14, 2014*

**physics**

A butterfly is flying with velocity 10i +12jˆ m/s and wind is blowing along x axis with velocity u. If butterfly starts motion from A and after some time reaches point B, find the value of u. Answer this Question
*July 26, 2014*

**Physics**

A butterfly is flying with velocity jˆ i 12 ˆ 10 + m/s and wind is blowing along x axis with velocity u. If butterfly starts motion from A and after some time reaches point B, find the value of u.
*July 26, 2014*

**english grammer**

a brief note on amplification "no pain no gain"
*June 16, 2014*

**physics**

A bullet travelling with velocity of 100 ms-1 pierces a block of wood and moves with a velocity of 10 ms-1 . If the thickness of the block reduces to one half of the previous value, what wiil be the emerging velocity of the bullet?
*January 25, 2014*

**physics**

If body is rotating 30r.p.m in clockwise what is angular velocity and it direction
*September 12, 2013*

**math**

square of (10000250025)
*August 10, 2013*

**Statistics**

$1700
*August 6, 2013*

**science**

Define water equivalent of a calorimeter. State its SI unit.
*July 9, 2013*

**Quantitative Methods**

What will be the 12th and 77th terms in the series 10, 12, 14, 16, ?
*June 14, 2013*

**Math Radical functions properties**

One side of a rectangle is 6 units larger than the other. If the area of the rectangle is A, what is the length of the smaller side?
*April 17, 2013*

**Math**

One side of a rectangle is 6 units larger than the other. If the area of the rectangle is A, what is the length of the smaller side?
*April 17, 2013*

**physics**

find the power by a man if he runs at constant speed of 5km/h along an ascending road which makes 5 degree with the horizontal if the mass of yhe man is 60 kg.
*October 8, 2012*

**mathematics**

Let x litres of water will add to 1125 litres of 45% sol. So it give results mixture will contain more than 25% but less than 30% acid content. (1125 + x)25< 1125*45 <(1125 + x)30 28125+25x<50625< 33750+30x 25x<22500 or 30x>16875 x<900 or x>562.5
*September 20, 2012*

**Math Studies IB**

Hi I have done tonnes of ib math studies IA in the past and fully aware of ib criteria of marking. so, if you want me to do your work then i can happily do it but I will charge for it, you can reach me through email or phone: +91 9911918255
*September 17, 2012*

**Polar equations**

3=r cos(a-315) where theta=a now 315=360-45=2pi-pi/4=-pi/4 therefore, -315=+pi/4 therefore,3=r cos(a-315)becomes 3=r cos(a+pi/4) but cos(a+pi/4)= cosa*cospi/4 - sina*sinpi/4 = 1/root2(cosa-sina) 3= 1/root2(rcosa-rsina) = 1/root2 (x-y) 3root2=x-y y = x-3root2 is an equation of ...
*April 20, 2012*

**Polar equations**

3=r cos(a-315) where theta=a now 315=360-45=2pi-pi/4=-pi/4 therefore, -315=+pi/4 therefore,3=r cos(a-315)becomes 3=r cos(a+pi/4) but cos(a+pi/4)= cosa*cospi/4 - sina*sinpi/4
*April 20, 2012*

**biology **

1.Describe the pathway of an unfertilized egg as it travels through the female reproductive system
*April 6, 2012*

**electrical**

A 35 kVA transformer supplies a load of 12 kW at a power factor of 0.45 lagging. Find the percentage of full load the transformer is carrying. If additional unity power factor loads are to be served with the same transformer, how many kW may be added before the transformer is ...
*January 13, 2012*

**trig**

SinA =0.5 cosA=?
*December 14, 2011*

**trig**

Find value of tan75/2
*October 21, 2011*

**chemistry**

what will happen when you drop a ball of naphthalene in a 25ml gasoline.will it dissolve or not?
*October 20, 2011*

**calculus**

Evaluate h(x) for the following values of x? Consider the following function. h(x) = (tan(x)-x)/x^3 (a) Evaluate h(x) for the following values of x. (Give your answer correct to six decimal places.) x = a) 1 b) 0.5 c) 0.1 d) 0.05 e) 0.01 f) 0.005 what is f(x) (b) Guess the ...
*September 10, 2011*

**geometry**

Find the missing measure for a right circular cone given the following information. Find l if r = 3 and h = 5.
*June 4, 2011*

**Algebra**

perform the indicated operation ND REDUCE THE RESULT TO LOWEST TERMS. STATES ANY RESTRICTIONS ON THE VARIABLE. USE YOUR CALCULATER TO VERIFY YOUR ANSWER. A. 3(x-6)/18*4(x+6)/8(x-6)
*May 12, 2011*

**Windows 7 operating system**

A medium-sized survey company stores sensitive government data that is used as part of a study. A security requirement from the government requires that all sensitive data must remain stored at the company’s head office. All staff and the head office network have ...
*April 22, 2011*

**Windows 7 operating system**

A business has a kiosk computer located in the lobby for customers to use. The kiosk computer has recently been updated to Windows 7 from Windows XP and is not part of a domain. The local computer policy created for Windows XP has been applied to Windows 7. This policy ...
*April 22, 2011*

**calculas**

caluclas (intersection of three planes) HELP!!!? in the equations k is a real number 1.x-2y+z=4 2.x-y-z=3 3.x+y+kz=1 for what values of k does the system 1.have exactly one solution? 2.have an in finite number of solution?
*March 27, 2011*

**Engllish Grammar**

Help me to identify the sentence structure of this sentence. "Holmes is called in to help solve a mysterious problem"
*March 23, 2011*

**College algebra**

f(x)= -(-2)^3+11(-2)^2-8(-2)+7 find f(-2) f(-2)=8+44+16+7=75
*March 3, 2011*

**College algebra**

f(x)= -(-2)^3+11(-2)^2-8(-2)+7 find f(-2) f(-2)=8+44+16+7=75
*March 3, 2011*

**College algebra**

f(x)= -(x)^3+11(x)^2-8(x)+7 find f(-2)
*March 3, 2011*

**College Algebra**

f (x) = - X3 +112 - 8x+7 find f(-2)
*March 1, 2011*

**algebra**

Find the center and radius of a circle (x+1)2 + (y-3)2
*February 18, 2011*

**algebra**

factor x/x2(square)+9x+4
*February 16, 2011*

**Math**

Jim Tree borrowed $1,000 at 10 percent for one year. He paid a $45 processing fee and $100 in interest. He calculated the APR to the nearest tenth.
*October 16, 2010*

**writting**

10 sentence about perfect organisation any kind of
*March 3, 2010*

**amin**

10 sentence about perfect organisation
*March 3, 2010*

**english**

if its urs how would u fix this??
*February 21, 2010*

**english**

how to make this thesis on correct placement(Today the price of gasoline is at record high, which brings the question of whether or not the U.S. should start drilling more onshore or offshore. In order to bring now jobs on the market, and lessen the burden of high gas price on...
*February 21, 2010*

**Math**

Carol would like to pay cash for a car when she graduates from college and estimates that she can afford a car that cost between $4000 and $8000. She has saved $500 so far and plans to earn the rest of the money by working the next two summers. If Carol plans to save the same ...
*February 7, 2010*

**Math**

2t-1 divided 3 = 3t+2 divided by 15
*February 7, 2010*

**algebra**

Assume that the mathematical model C(x) = 16x + 130 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured while keeping costs between $525,000 and $781,000?
*February 7, 2010*

**Grade 8**

what is a narrative mean in CASI work and can i have a example of a non fiction story
*January 11, 2010*

**11th grade**

Calculate the volume of CO2 produced at STP from the decomposition of 20 g calcium carbonate caco3?
*November 6, 2009*

**2nd grade -social studies**

Why do we need to measure time?
*May 26, 2009*

**Math-Trig**

Trig Questions- 1. Write the algebraic expression which shows Cos((ArcSin(4/X)), 2. Angle If Csc(-Θ)=15/4? 2. - what quadrant is it in, find the sin(-Θ), Sin(Θ), Tan(90deg-Θ), Tan(Θ), csc(Θ), Sec(-Θ+360deg), Thanks
*March 15, 2009*

**14 line 10 syllable poem**

a poem on mother which is of 8 lines has not been found
*October 2, 2007*

**tree diagram balls probability**

a container cotains 6 yellow balls , 2pink balls, 3 green balls how can i show in tree diagram and what's the probability choosing 2 green balls ?
*November 20, 2006*

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