05/20/22

What would be the pressure of ethanol after equilibrium is reached the second time? Round to 2 decimal places
C2H4(g)+H2O=CH3CH2OH(g)Kc=[CH3CH2OH]/[C2H4][H2O]A chemical engineer studying this fills 2.0L w/ 2.7atm of ethylene gas & 2.3atm of water vapor. When the mixture has come to equilibrium he... more
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05/20/22

calculus help needed thanks
A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of... more
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05/17/22

Torque/physics based question

A girl pushes a door with a 10.4 Nforce, perpendicular to the door,1.25 m from the hinges. Howmuch torque is produced?(Unit = N*m) can someone please throughly answer this ?
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05/17/22

WHEN TO USE L'HOPITAL'S RULE?
For different types of rational functions (you can use rational expressions where both numerator and denominator are polynomials), what methods would you recommend following aside from  L'HÔPITAL'S... more
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05/17/22

AP Calculus AB Integral Volume Question
The region in the first quadrant bounded by x2 + 4y2 = 64, the x-axis, and the y-axis is revolved around the y-axis. What is the volume of the solid?
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05/16/22

Probability word problems
A school survey reported that 80% of students have cell phones, 45% have part time jobs, and 30% have both a cell phone and a part time job. If a student is chosen at random, what is the... more
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05/16/22

HELP!! Intersection question!! calculus derivatives.

Wendy and Kayla drive towards an intersection. Wendy is 200 meters north of the intersection and moving towards the intersection at 20 m/s, while Kayla is 190 meters west of the... more
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05/15/22

A 5.60g sample of an unknown compound containing only C, H, and O combusts in an oxygen-rich environment... (2 parts to this question)

A 5.60g sample of an unknown compound containing only C, H, and O combusts in an oxygen-rich environment. When the products have cooled to 20.0 degrees Celsius at 1 bar, there are 7.05 L of CO2 and... more
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05/15/22

physics problem, field of an infinite plane
Without doing any math, explain why the field of an infinite plane, uniformly charged, must be constant. Likewise, explain why the field produced by an infinite, uniformly charged wire must be... more
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05/15/22

Combination, permutation

Four letter are to be selected from the word COMBINATION. Find the number of ways of choosing the letter if the letter N must be selected.There are two O, two I, two N.. Please explain how the... more
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05/14/22

Implicit Differentiation

If -3y = -3 + 2xy then find d^2y/dx^2 at the point (-1,3) in the simplest form
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05/13/22

Optimization Calculus Problem (Please help)
A landscape architect is designing an 5130 square foot, rectangular garden. The perimeter of the garden is to be lined with shrubbery on three sides, which costs $48 per foot, whereas the fourth... more
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05/13/22

If 128 grams of CH4 and 160 grams of O2 react, how many moles of CO2 will form. What would be the limiting reactant/excess reactant and theoretical yield?
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05/12/22

What would be the % calcium in a leafy vegetable extract applying 30.50 grams sample absorbing 9.8 mL of 0.0575 M EDTA solution?
I had a hard time solving this because our given formula is shown like this:% = V x M.F. x titer value / Wt(mg) ÷ MW x 100I do not know how to identify the M.F. and the titer value based on the... more
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05/12/22

Geometry study guide
Find the perimeter of a quadrilateral with vertices at C (−2, 4), D (−3, 1), E (1, 0), and F (−1, 2). Round your answer to the nearest hundredth when necessary. 10 units10.77 units11.52 units12.45... more
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05/12/22

Factor 𝑥^2 − 2𝑥 − 24 and sketch a graph. What does factored form tell you about the graph?
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05/12/22

Two poles are connected by a wire that is also connected to the ground between the poles. The first pole is 3 feet tall and the second pole is 4 feet tall.

There is a distance of 5 feet between the two poles. How far from the first pole should the wire be anchored to the ground to minimize the amount of wire needed? Enter an exact answer or round to... more
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05/12/22

A plane is flying with a speed of 500 mph northeast at an altitude of 10,000 miles shortly after taking off.

Sketch its velocity vector v, and find its coordinate representation.  Suppose that suddenly the pilot realizes that the plane does not have enough fuel for the trip and turns around driving with... more
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05/12/22

rotational motion
 Suppose you start an antique car by exerting a force of 290 N on its crank for 0.13 s.f = 290 Nt = 0.13 sd = 0.38 mWhat angular momentum is given to the engine if the handle of the crank is 0.38 m... more
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05/12/22

chem question pls help
A solution is prepared by mixing 605.0 mL of ethanol with 582.0 mL of water. The molarity of ethanol in the resulting solution is 9.096 M. The density of ethanol at this temperature is 0.7893 g/mL.... more
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05/11/22

A meteorological ballon contains 300L of He at 25ºC and 750 mm Hg. What volume {in L} would it occupy at -10ºC and 10 psi?
Process and answer is needed!
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05/11/22

I need help please
A rock of mass 3KG is attach to the end of a 2 m long rope. The rock is swung and a vertical circle. That tangential velocity of the rock is 15 M/S. How long does it take in seconds for the rock to... more
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05/11/22

Word need helps
on a calm day the 32 windmill on the bosley family wind farm each complete 120 revolutions every minute. which operation would you use to find the total number of revolutions the 32 windmills... more
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05/11/22

i need help finding the domain and range!!!
please help me find the following for the function- 4x^(6)+2x^(5)-2x^(4)+2x^(3)-0x^(2)+0x-6 Domain and range The y-intercept All real and complex zeros Minimums and maximums A description of the... more
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05/10/22

find the net electric field at the center of an square
find the net electric field at the center of the square of charges A(+5), B(+5), C(-5), D(-5) microcoulomb at the corners of the square ABCD separated by a distance of 1cm from each other
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