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Steve

Questions (1,140)

A boy is spinning on a chair and holding a paper bag so that it is horizontal, and perpendicular to the axis of the rotation.
1. 0 answers
2. 407 views
A helium ion is at rest in a laboratory when it is put in an electric field of E=2 N/C. An infrared light, of wavelength 2000
1. 2 answers
2. 1,125 views
W varies directly as x,y,and z. If w=36 when x=2, y=8, and z=12 find w when x=1 y= 2, and z=4
1. 1 answer
2. 403 views
Solve for x35:4=x:2
1. 2 answers
2. 320 views
The squares of a 2×60 chessboard are coloured black and white in the standard alternating pattern. At random, exactly half of
1. 0 answers
2. 524 views
Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The
1. 0 answers
2. 608 views
How to find Geometric mean if arithmetic and harmonic mean is given, The question is AM = 2700 and HM = 75, then find GM ?
1. 1 answer
2. 398 views
How many three digits numbers N=abc are there such that a≤b and c≤b?Details and assumptions: abc means 100a+10b+1c, as
1. 1 answer
2. 490 views
Can anyone please assist showing half reactions balancing, balancing of e- and the additions of H2O, H+ and then since its
1. 1 answer
2. 574 views
Another Redox in BASIC ....having a tough time with these OH's no clue how to tackle.Cr(OH)3 + ClO^- => CrO4^2- +Cl2 thanks for
1. 1 answer
2. 399 views
Dr BobCan you please assist Redox balancing in BASIC sol. NO2- +Al-->NH3 +Al(OH)4- if you could please walk through step by
1. 6 answers
2. 3,476 views
BaSO4(s)__><---Ba2+(aq) + SO42−(aq) Adding what substance produces more SO4^2-??? This was a question, that had options of 1.
1. 2 answers
2. 715 views
Dr. Bob222:There is a problem you answered .100M HClO2 titrated with .080M NaOH I can work the problem many times but I am
1. 4 answers
2. 1,360 views
Prove by induction on all positive integer k that if m is any ordinary nfa with k states, and m has fewer than k - 1
1. 1 answer
2. 905 views
find derivative off(x)= log_5((x-4)^3) + e^((x-1)(x+1)) Log_5 means log base 5
1. 1 answer
2. 480 views
A quasi-scientific study was done to find some link to autism. In the study, it was found that children who had an autistic
1. 1 answer
2. 751 views
Why is runaway child process dangerous for long running server?
1. 1 answer
2. 416 views
If about 3000 of every recall model of a vehicle actually need rework, what is the probability that your (recalled) car will not
1. 0 answers
2. 426 views
If velocity v of blood flow at distance r from the center of an artery of radius R is given byv = k (R^2 - r^2), constant k > 0,
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2. 448 views
Influential observation and Outliers: Are we just splitting hair? If so, explain. If not, how then do you differentiate between
1. 1 answer
2. 583 views
what are some of the problems associated with modifiers -51 and -59
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2. 312 views
A 12-year-old boy presents with his father to the ER due to open wounds to his arm, hand, and upper leg. The injury occurred
1. 1 answer
2. 923 views
Let Alpha and Beta be the zeros ofthe cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta -1 = 0. Prove
1. 0 answers
2. 541 views
One fourth of herd of goats was seen in the forest. Twice the square root of the number of the herd had gone up the hill and the
1. 2 answers
2. 1,530 views
If alpha and beta are the zerosof the polynomial ax^2 + bx + c then evaluateA. (alpha)^2 / beta + (beta)^2 / alpha B. alpha^2
1. 3 answers
2. 1,845 views
Let R1 and R2 be the remainderswhen polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x
1. 4 answers
2. 1,629 views
Through the process of spermatogenesis __________ sperm are created, whereas oogenesis creates ________ egg(s) and _________
1. 1 answer
2. 458 views
If a and b are positive odd integers, then prove that one of (a+b)/2 and (a-b)/2 are even or odd number. I mean in the above
1. 3 answers
2. 1,366 views
Prove by induction : if n < =(2^k) -1 then we can find the number with k guesses
1. 1 answer
2. 344 views
Prove by induction : if n < =(2^k) -1 then we can find the number with k guesses
1. 0 answers
2. 310 views
Prove by induction : if n < =(2^k) -1 then we can find the number with k guesses
1. 0 answers
2. 323 views
Under what conditions will the statement sin(angle1 + angle2) = sin (angle1) + sin (angle2) be true?
1. 1 answer
2. 523 views
show that sin ((pi)/(3))+((pi)/(6)) = sin[pi/3] + sin[pi/6] is NOT a true statement.
1. 1 answer
2. 358 views
knowing that 2(theta) can be written as theta + theta, find the expression for sin2(theta) and cos2(theta).Is it
1. 1 answer
2. 584 views
Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of
1. 0 answers
2. 529 views
Airplanes are noisy things. For example, if you stand really close to a runway, a military jet can produce a sound intensity of
1. 0 answers
2. 879 views
Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is
1. 1 answer
2. 640 views
Hiro went to the store after school to pick up groceries. His list said he needed to pick up one jug of milk, one loaf of bread,
1. 0 answers
2. 652 views
9x^3+36x^2+36
1. 1 answer
2. 305 views
Two identical +9.5uF point charges are initially 3.5cm from each other.If they are released at the same instant from rest, how
1. 1 answer
2. 1,052 views
Two identical +9.5uF point charges are initially 3.5cm from each other.If they are released at the same instant from rest, how
1. 3 answers
2. 1,046 views
A C1= 2.50uF capacitor is charged to 862 V and a C2= 6.80uF capacitor is charged to 660 V . These capacitors are then
1. 1 answer
2. 5,740 views
The ship in Figure P14.35 travels along a straight line parallel to the shore and a distance d = 500 m from it. The ship’s
1. 1 answer
2. 1,594 views
The ship in Figure P14.35 travels along a straight line parallel to the shore and a distance d = 500 m from it. The ship’s
1. 0 answers
2. 895 views
Calculate the magnitude of the electric field at one corner of a square 1.48m on a side if the other three corners are occupied
1. 1 answer
2. 590 views
An electron with initial speed = 2.54×10^7 m/s is traveling parallel to an electric field of magnitude = 1.66×10^4 N/C .How
1. 0 answers
2. 450 views
If the 60-kg player is running forward at 7.0m/s when she makes contact with the dummy, what is the players velocity at the end
1. 0 answers
2. 898 views
Write a number sentence. Marshall sleeps 8 hours each day. How many hours does Marshall sleep in one week? How many hours is
1. 1 answer
2. 584 views
A mag lev train traveling at 180 m/s towards a rail way crossing sounds its horn with a wavelength of 0.20 m. What is the
1. 1 answer
2. 468 views
Two pendulums are set up side by side. One pendulum P, consists of a 0.240 kg mass that is suspended on a string that is 65.0 cm
1. 1 answer
2. 584 views
Greg and Martin's age when added together come to a total of 60 years. Now Greg is twice as old as Martin was when Greg was half
1. 1 answer
2. 633 views
1. I have 2% NaCl solution. From this I want to prepare a solution to contain 0.1 g of the sodium compound in 2 mL of water.Than
1. 1 answer
2. 1,164 views
Given the following question:-3e^(-2*t)*sin(pi*t pi/3)] How do I find a) period b) frequency c) time (phase) shift d) time
1. 0 answers
2. 393 views
Why are zombie processes dangerous for long running server program?
1. 1 answer
2. 418 views
An object is placed 4 cm in front of a concave lens of focal length 3 cm. Using the lens equation, find where the image will
1. 0 answers
2. 545 views
f(x)=square root of 5-x and g(x)=x^2+2xa- find g(f(-1)) b-f(x)/g(x), state the domain, then evaluate for x=3
1. 1 answer
2. 386 views
Light intensity(lumens) at a depth of x feet has the equation log I/12=-0.0125xwhat depth will the light intensity be half that
1. 1 answer
2. 855 views
use f(x)=square root of 5-x and g(x)=x^2 + 2xa-find f(g(x)), state the domain b-find g(f(x)),state the domain c-find g(f(-1))
1. 1 answer
2. 892 views
a population doubles every montha-initial population 20, what is function that represents poulation with respect to time b-how
1. 2 answers
2. 1,180 views
Light intensity of water equation log I/12=-0.0125What depth will the light intensity be half that of surface?
1. 2 answers
2. 597 views
Bone mineral density (BMD) was measured for seven postmenopausal women: 1.7, 1.6, 1.4,1.3, 2.1, 2.3, 1.5 g/cm2. Find a 99%
1. 1 answer
2. 398 views
How do you calculate the pH of two acids in a solution? Examlp: a solution is made by adding 50mL acetic acid(Ka=1.76x10-5) to
1. 1 answer
2. 618 views
What is the mole fraction sodium acetate of a solution made by adding 0.145 g of sodium acetate to 119 ml water?
1. 1 answer
2. 1,518 views
The total ticket sales for the school basketball game were $1625. Adult tickets were $7 and the student tickets were $3. Twice
1. 2 answers
2. 1,471 views
Scary thing is I am an adult...If the cost is $4.95 sq yd and the roll is 33 1/3 yards how much does it cost for the roll if it
1. 1 answer
2. 347 views
The cost is $4.95 per sq ydSize is 33 1/3 yd Width is 24" How much does it cost for 33 1/3 sq yards?
1. 3 answers
2. 371 views
Examine the effects of World War II on the American family.
1. 2 answers
2. 465 views
1. Which of the following is NOT a concern of the community stakeholder group?A. Employment of local residents B. Repayment of
1. 3 answers
2. 1,154 views
Andrew Malone, director of Human Resources at FBS Incorporated, wants to conduct a training program to educate employees about
1. 3 answers
2. 495 views
A 1,500kg truck moving at 15 m/s strikes a 750 kg automobile stopped at a traffic light the vehicle. The vehicles hook bumpers
1. 2 answers
2. 1,941 views
Have you ever try thefrenchproofreader service ?I need some help in french for my homework. Is there another website for that ?
1. 2 answers
2. 458 views
A uniform rectangular sign of width 47.6 cm, height 25.0 cm, and negligible thickness hangs vertically from supporting hinges
1. 1 answer
2. 632 views
The human ear can detect sounds with frequencies between 20 Hz and 20kHz. Find the largest and smallest wavelengths the ear can
1. 2 answers
2. 1,095 views
how much heat is required to warm 1500 gallons of water from 70 to 140 degrees F?
1. 1 answer
2. 865 views
the initial concentration of each component was: 0.100 M H2(g), 0.100M I2(g), and 0.050 M HI(g) . The Keq = 50.2. Calculate the
1. 1 answer
2. 737 views
I have been writing this story for English class and would love some input on what i should add to this story. I don't want it
1. 1 answer
2. 576 views
How much work is needed to push a 142- kg packing crate a distance of 2.45 m up an inclined plane that makes an angle of 20 o
1. 2 answers
2. 1,757 views
Two forces parallel to the x axis do 18.1 J of work on a small tray while moving it 21.8 m in the x direction across a gym
1. 1 answer
2. 414 views
A block of mass m = 300 g is released from rest and slides down a frictionless track of height h = 59.4 cm. At the bottom of the
1. 1 answer
2. 607 views
Suppose you are the marketing manager for the Fruit of the Loom. An individuals' inverse demand for Fruit of the Loom women's
1. 0 answers
2. 1,205 views
A monopoly produces widgets at a marginal cost of $8 per unit and zero fixed costs. It faces an inverse demand function given by
1. 0 answers
2. 1,063 views
2. An object is moving along the parabola y = 3x^2.a) When it passes through the point (2, 12), its “horizontal” velocity is
1. 1 answer
2. 457 views
A space explorer is 4.6 billion km away from a certain star, and observes that the gravitational force of attraction exerted on
1. 1 answer
2. 873 views
Write the argument below in symbols to determine whether it is valid or invalid. State a reason for your conclusion. Specify the
1. 0 answers
2. 476 views
A highway curve with a radius of 750 m is banked properly for a car traveling 150 km/h. If a 1560- kg Porshe 928S rounds the
1. 0 answers
2. 717 views
A certain satellite has a kinetic energy of 7.5 billion joules at perigee (closest to Earth) and 3.5 billion joules at apogee
1. 0 answers
2. 759 views
Evaluate the trig function tan33degress
1. 1 answer
2. 413 views
The mass of a certain neutron star is 3.0 1030 kg (1.5 solar masses) and its radius is 7550 m. What is the acceleration of
1. 1 answer
2. 586 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 2 answers
2. 1,481 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 0 answers
2. 1,451 views
A chain consisting of five links, each of mass 0.150 kg, is lifted vertically with a constant acceleration of a = 2.2 m/s2. Find
1. 0 answers
2. 706 views
A 50 kg crate is pushed at constant speed up the frictionless 31° ramp shown in the figure.A)What horizontal force F is
1. 1 answer
2. 1,692 views
A block of mass 4.6 kg slides 15 m from rest down an inclined plane making an angle of 20 o with the horizontal. If the block
1. 0 answers
2. 626 views
The body of a 1290 kg car is supported on aframe by four springs. The spring constant of a single spring is 2.59 × 104 N/m.
1. 2 answers
2. 1,788 views
A mass of 0.24 kg is attached to a spring andis set into vibration with a period of 0.15 s. What is the spring constant of the
1. 1 answer
2. 1,538 views
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 968 and 1550
1. 1 answer
2. 807 views
In a large building, oil is used in a steam boiler heating system. The combustion of 1.0 pound of oil provides 2.4*10^7 J.How
1. 2 answers
2. 2,064 views
A 55.0-g piece of ice at 0.0 is added to a sample of water at 8.0. All of the ice melts and the temperature of the water
1. 1 answer
2. 927 views
e Math Test: grandmother buys grandson a plastic bat & ball for a $1.10. The bat cost a dollar more than the ball. How much did
1. 1 answer
2. 445 views
find the diagonal of the base of a rectangular solid with given measurements: l=8, w=4, h=2
1. 1 answer
2. 396 views

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