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A fireplace arch is to be constructed in form of a semiellipse. The opening is to have a height of 2 feet at the center and a
1. 7 answers
2. 18,933 views
A group of twelve people are going to take a ride on a roller coaster at the same time in two different trains, one of which
1. 1 answer
2. 1,697 views
In an experiment, 95.0 mL of 0.225 M silver nitrate was mixed rapidly with 47.5 mL of 0.225 M calcium chloride in a coffee cup
1. 2 answers
2. 2,128 views
A centrifuge rotor rotating at 12000 rpm is shut off and is eventually brought to rest by a frictional torque of 1.50 m·N. If
1. 1 answer
2. 1,578 views
How fast (in rpm) must a centrifuge rotate if a particle 6.0 cm from the axis of rotation is to experience an acceleration of
1. 1 answer
2. 942 views
The Eiffel Tower is 300 m tall. When you are standing at a certain place in Paris, it subtends an angle of 7.0°. How far are
1. 1 answer
2. 1,989 views
What is the minimum work needed to push a 1025 kg car 290 m up a 17.5° incline with zero friction?
1. 1 answer
2. 621 views
A car does 8.0 ✕ 104 J of work in traveling 2.7 km at constant speed. What was the average retarding force (from all sources)
1. 2 answers
2. 1,017 views
WHAT IS 32X14+_=689
1. 4 answers
2. 417 views
what is the difference in older forms of corporate censorship and how it looks today?
1. 0 answers
2. 367 views
how do you think globalization relates to the kind of large multinational corporations?
1. 3 answers
2. 443 views
What is the fundamental difference between lifestyle branding and past forms of branding?
1. 0 answers
2. 675 views
4. Read the following passage from “The People Could Fly”:The slaves labored in the fields from sunup to sundown. The owner
1. 6 answers
2. 658 views
1. Which sentence describes setting?As much as it saddened her, the first thing Nan had to do was leave her beloved family home.
1. 1 answer
2. 485 views
four of every seven teenagers would prefer to watch a comedy when going to the movies
1. 1 answer
2. 379 views
the velocity of the water jet discharging from the orifice can be obtained from v = (2gh)^(1/2), where h = 2m is the depth of
1. 2 answers
2. 5,840 views
Solve for x:1. 2sin(2x)+cos(x)=0 2. cos(2x)=-2sin(x) 3. tan(x)=2sin(x)
1. 0 answers
2. 620 views
Deternime the instantaneous rate of change at x=2 for:y=x-2x^3
1. 1 answer
2. 1,091 views
Estimate the instantaneous rate of change for x=2 fory=x y=x^2 y=7
1. 1 answer
2. 438 views
Estimate the instantaneous rate of change for x=2 fory=x y=x^2 y=7
1. 1 answer
2. 833 views
Tidal forces are greatest when the Eaetg, the sun and the moon are in line. When this occurs at the Annapolis Tidal Generating
1. 1 answer
2. 985 views
solve(sq.rt 2) (tanx)(cosx) = tanx
1. 2 answers
2. 557 views
solve2.84 = (1 + x ) ^ 12
1. 2 answers
2. 403 views
Something is rotten in the state of Denmark. (I.iv.90)Using two different literary devices, prove or refute the quotation above.
1. 3 answers
2. 1,263 views
How bright a star appears can depend on how much light the star actually emits and how far away it is. The stellar magnitude
1. 0 answers
2. 1,149 views
The vertical position, h, in metres, of a gondola on a Ferris wheel is modelled using the functionh = 10 sin ((pi/15) (t-d)) +
1. 1 answer
2. 2,540 views
The height, h, in metres, above the ground of a rider on a Ferris wheel can be modelled by the equation:h= 10 sin ((pi/15 t) -
1. 1 answer
2. 5,291 views
Solve 3sin2x - 1 = 0Interval: [0, 2 pi] Solve 6cos^2x + 5cosx - 6 = 0
1. 1 answer
2. 2,203 views
Solve 2tan^2x + 1 = 0Interval : [0, 2 pi]
1. 0 answers
2. 539 views
Determine approximate solutions for this equation in the interval x is all real numbers [0, 2pi), to the nearest hundredth of a
1. 1 answer
2. 1,632 views
A painted dot on the circumference of the wheel is 12cm from the centre of rotation of the wheel. How far does the dot travel in
1. 1 answer
2. 592 views
Show that tanx = sinx / cosxcan be written as tan(x+y) = (tanx + tany) / (1 - tanxtany)
1. 1 answer
2. 653 views
The manufacturer of a propeller for a small aircraft mandates a maximum operating angular velocity of 300 rad/s. Determine
1. 0 answers
2. 631 views
What is the exact value for sin5pi / 12 ?
1. 1 answer
2. 454 views
Prove that:2sinxsiny = cos(x-y) - cos(x+y)
1. 3 answers
2. 1,933 views
Show that tanx= (sinx/ cosx)can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)
1. 1 answer
2. 744 views
The London Eye is a large ferris wheel. Each sealed and air-conditioned passenger capsule holds about 25 passengers. The
1. 1 answer
2. 5,498 views
Would someone be willing to proofread my essay? It's supposed to be from the point of view of Pablo Picasso.Yo nací el 25 de
1. 4 answers
2. 679 views
In a double-stranded fragment of DNA, which of the base pairs would you expect to be most stable
1. 0 answers
2. 539 views
For the reactionI_2(s)+Cl_2(g) ==> 2ICl(g) ÄH= 36kJ, ÄS= 158.8J/K at 25° C. Calculate the temperature at which Keq is
1. 1 answer
2. 416 views
What is the total mass of a solution prepared by dissolving 4.00 of in 1.00 of water?
1. 1 answer
2. 432 views
A 50.0g piece of iron an 152°C is dropped into 20.0g H2O(l) at 89°C in an open, thermally insulated container. How much water
1. 1 answer
2. 2,774 views
what mass of ethylene glycol C2H6O2 the main component of anitfreeze, must be added to 10.0L water to produce a solution for use
1. 5 answers
2. 1,260 views
find points on the curve x^2+xy+y^2=7(a) where the tangen is parallel to the x-axis and (b) wehre the tangent is parallel to
1. 0 answers
2. 588 views
Advocates of a parliamentary system argue that congress is inefficient, moves slowly, and develops policies laced with
1. 2 answers
2. 492 views
assuiming that the calorimeter contains 5.00 * 10^2 g of water and the intial temperature is 30.0 degreddc, what will the final
1. 1 answer
2. 419 views
what is the 'big idea of energy'???!
1. 1 answer
2. 402 views
how do i draw a particle model to describe the reaction between sulphur and iron in detail?
1. 3 answers
2. 817 views
How do I find the empirical formula of FeSO4? Thanks!
1. 2 answers
2. 1,610 views
How do you say "we watched the sunset" in French? Is it "nous avons regardé le coucher du soleil?"Merci!
1. 2 answers
2. 498 views
I need help with the adjective bien et bon.How do you know when to use what in a sentance. For Example: Would it be. Maire danse
1. 0 answers
2. 557 views
How do you say "if you want to read this..." in French? Would it be "Si vous voulez lire ceci...?"Thank you for using the Jiskha
1. 0 answers
2. 504 views

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