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Jeff
Questions (408)
It's a NUMBER? It is divisible by 3 but not by 9 or 15. It is not an even number and it is less than 90. The sum of it is 12 and
1 answer
344 views
What is a substance that cannot be separated into simpler substances by physical or mechanical methods such as filtering,
4 answers
1,363 views
(a) What is the escape speed on a spherical asteroid whose radius is 435 km and whose gravitational acceleration at the surface
0 answers
563 views
(a) What is the escape speed on a spherical asteroid whose radius is 435 km and whose gravitational acceleration at the surface
0 answers
539 views
Agree or disagree with this statements and explain:
If the demand for a good has unitary elasticity, or elasticity is -1, it is
0 answers
498 views
If a car is traveling at 60 mph how long would it take to slow to 30 if slammed on the brakes?
1 answer
383 views
Archie must travel to a foreign country where a deadly strain of flu has ravaged the population. Already, 34% of the population
0 answers
762 views
For example
HNO2 + H20 ----> H30+ NO2- I don't understand how the hydronium ions form. How do I figure out if a OH- or H30+ will
0 answers
609 views
Calculate the future value of $5000 given that it will be held in the bank for 6 years and arn an annual interest rate of 7%.
0 answers
407 views
What are degrees of angles for pentagon with 36 sides
1 answer
721 views
calculate the minimum number of grams of C3H8(g) that must be combusted to provide the energy necessary to convert 3.36 kg of
1 answer
1,032 views
3.00 g of H2 reacts with 200.0 g of AgCl. what is the yield?
1 answer
370 views
What mass of silver can be produced by reacting 0.300 L of 0.100 M AgNO3 with an excess of Mg?
2 answers
350 views
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution
3 answers
2,787 views
What is Positive Adverbs
1 answer
387 views
A 36 cm long copper wire carries a current of 6.0 A and weighs 0.45 N. A certain magnetic field is strong enough to balance the
0 answers
513 views
A wire that is 70 cm long, carrying a current of 6.5 A, is at right angles to a uniform magnetic field. The magnitude of the
0 answers
590 views
A wire that is 0.45 m long and carrying a current of 9.5 A is at right angles to a 0.40 T magnetic field. How strong is the
2 answers
881 views
The force acting on a wire that is at right angles to a(n) 0.80 T magnetic field is 2.1 N. The current in the wire is 6.7 A. How
0 answers
486 views
A wire that is 630 m long is perpendicular to a 0.31 T magnetic field. A 1.8 N force acts on the wire. What current is in the
0 answers
478 views
A wire that is 46 cm long is parallel to a 0.54 T uniform magnetic field. The current through the wire is 4.5 A. What force acts
3 answers
570 views
Greg reacts 5.0 moles of hydrochloric acid(HCL)with 1.5 moles of barium hydroxide(Ba(OH)2).Which reagent is the limiting
2 answers
1,446 views
The unit's digit for the number 7^76 is____ ?
1 answer
383 views
Aliquot divisors are all the divisors of a number except the number itself. The product of the Aliquot divisors of a number is
1 answer
1,016 views
Develop a use case diagram for a department store credit card system. Include at least two actors and four use cases.
1 answer
1,256 views
A force of 44.0 N accelerates a 5.0-kg block at 6.3 m/s2 along a horizontal surface.
(a) How large is the frictional force? (b)
0 answers
385 views
Storms in the South Pacific can create waves that travel all the way to the California coast, which are 12,000 km away. How long
3 answers
2,458 views
Consider the 620 N weight held by two cables shown below. The left-handed cable had tension 550 N and makes an angle of �����è
1 answer
558 views
A 0.500 kg is thrown vertically upward from the ground with an initial speed of 12.0 m/s. Define the initial potential energy to
0 answers
487 views
Two acrobats, each of 60.0 kg, launch themselves together from a swing holdings hands. Their velocity at launch was 8.00 m/s and
0 answers
435 views
The solid fuel of a 300.kg rocket travelling at 1.64x104 km/h is ignited to correct the rocket trajectory in mid-flight to Mars.
0 answers
707 views
A ballistic pendulum was a device used in the past century to measure the speed of bullets. The pendulum consists of a large
0 answers
1,113 views
What would the weight of an object that is 4N on the earth be on the moon (acceleration due to gravity on the moon is 1.62m/s2?
0 answers
798 views
How would you make 0.1 N HCL using 12M HCL?
0 answers
367 views
A dog throws a bone into the air at 17.2 m/s...How high will it rise and How long will it take to reach the peak of its
0 answers
394 views
An F-14 jet fighter flies horizontally at 200m/s at an angle of 30 degrees above the horizon when it drops parcel from 2400m
1 answer
531 views
A particle travels between two parallel vertical walls separated by 11 m. It moves toward the opposing wall at a constant rate
0 answers
679 views
A sociologist is interested in the relations between x = number of job changes and y = annual salary (in thousands of dollars)
0 answers
933 views
Jeff is changing the shape of his sandbox from 10 feet long by 12 feet wide to a square that has the same area. What is the
3 answers
1,318 views
how can you reword these research hypotheses to null hypotheses:
a. smoking during pregnancy increases the risk of a child being
3 answers
1,923 views
create a null hypothesis on these research questions:
a. what are the differences between emergency room shifts on medication
1 answer
1,752 views
I do not know where to start with this one. Suppose p varies directly as the square of z and inversely as r. If p = 32/5 when z
2 answers
1,655 views
What is the greatest 7 digit number without repeating any digit
1 answer
362 views
What mass of KClO3 must be decomposed to KCl and O2 to give 638ml O2 at 18 degrees Celcius and 752torr?
1 answer
587 views
Carlos hiked 1 and 3/4 miles along a nature trail to a fork in the trial. He than hiked 2 and 1/2 along a path that led to a
3 answers
1,341 views
AM radio signals are electromagnetic waves transmitted between frequencies of 550 kHz and 1600 kHz. Find the range of
1 answer
788 views
A simple dartboard has three areas the main board has a radius of 9 inches there is a circle with a radius of 5 inches ans the
1 answer
1,000 views
2. An electric fan having a radius of 0.5 m is running on HIGH. After the LOW button is pressed, the angular speed of the fan
2 answers
717 views
solve each triangle. A=45,a=24,b=13
1 answer
331 views
Empirical formula 12.67 aluminum, 19.73 nitrogen, 67.60 oxygen
1 answer
1,718 views
A 82% confidence interval for a sampling distribution with a mean of 100, a sample standard deviation of 24 and a sample size of
0 answers
507 views
A 82% confidence interval for a sampling distribution with a mean of 100, a sample standard deviation of 24 and a sample size of
0 answers
407 views
A random selection of files from a student counseling center revealed the following reasons why college students seek services:
M
1 answer
633 views
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a
0 answers
1,332 views
A 48 g ball is released from rest at h = 1.4 m above the bottom of the track shown in the figure below. It rolls down a straight
0 answers
454 views
Nickel carbonyl has a formula: Ni(CO)4. Nickel carbonyl is produced by the reaction of solid nickel metal with carbon monoxide
1 answer
1,057 views
What is the greatest odd number that uses digits 3, 4, 5 once each?
5 answers
1,742 views
I am looking for a good problem about data sets. Something along the lines of having to crtically look at a large chart of
0 answers
429 views
If a_n does not equal zero for any n>=1 and ∑a_n converges absolutely, then ∑ 1/|a_n| diverges. The series are from n=1 to
1 answer
493 views
Is this how I say the spider is smaller than the lizard?
La araña es más pequeña que la iguana.
1 answer
1,330 views
Consider the following unbalanced reaction.
P4(s) + F2(g)---> PF3(g) How many grams of F2 are needed to produce 114 g of PF3 if
2 answers
981 views
How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate
solution?
2 answers
468 views
How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate
solution?
0 answers
569 views
A rock is dropped from a 154-m-high cliff. How long does it take to fall (a) the first 77.0 m and (b) the second 77.0 m?
1 answer
1,423 views
A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times
1 answer
510 views
Suppose someone invents a new unit of length called a zizzle. If 3.5 zizzles = 1 meter, what is 11.9 zizzles/s in km/hour?
3 answers
524 views
Which of the following equations is dimensionally consistent?
A. a3 = 1.2 (v/t)3 + 0.2 x3/t6 + 1.5 v4/x3 B. a3 = 1.2 (v/t)3 + 0.2
0 answers
810 views
A conical tank (with its vertex down) is 8 feet tall and 6 feet across its diameter. If water is flowing into the tank at the
1 answer
512 views
7. A cardboard box manufacturer wishes to make open boxes from rectangular pieces of cardboard with dimensions 40 cm by 60 cm by
5 answers
10,750 views
what is the most divisive issue that is fueling the controversy over Affirmative Action
1 answer
416 views
Joe Henry's machine shop uses 2,500 brackets during the course of a year. These brackets are purchased from a supplier 90 miles
2 answers
18,565 views
A cone is filled w/ freshwater (w=62.4 lb/ft^3). Determine the total force on the inside of the cone. Height of 10 and base of
1 answer
956 views
Jack and Jill invented a Trivia game in which a player can score 0,6 or 11 points on each turn.each player must take at least
0 answers
400 views
sqrt(55) -sqrt(1/55)+sqrt(5/11)=?
0 answers
325 views
I am racking my brain trying to figure out how to work this: the square root of 55 minus the square root of one over 55 plus the
2 answers
509 views
A bumper crop of farm products causes:
1) only a slight decline in the price of farm products because the demand for farm
0 answers
536 views
I need to duplicate the strength of lye made from wood ash dissolved in water (Potassium Hydroxide) to that of lye made from
0 answers
656 views
What is the PH range between 58 grams and 87 grams of Sodium Hydroxide in 6 oz by volume of water. What is the PH range of that
3 answers
623 views
Autoparts Inc. produces three types of parts' assemblies: (P,Q,R)and they each require (2,5,3) units of work on machine I and
0 answers
458 views
Rank in order from best to worst, the economic systems(command, market and mixed) according to which, in theory, best attempts
2 answers
608 views
I have to fill in the following for a fascist economy.
Ownership of resources = private Philosophers= Karl Marx (are there more?)
1 answer
689 views
I am given four pictures and I am asked to determine which are needs and which are wants. They are:
-An airplane -A plate of
2 answers
924 views
For the reaction H2+I2, Kc=55.3 at 700K. In a 2. L flask containing an equilibrium mixture of three gases, there are .056g H2
0 answers
1,301 views
Lead(II) nitrate solution reacts with potassium iodide solution to produce lead(II) iodide and potassium nitrate.
The answer in
1 answer
1,812 views
A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that
1 answer
660 views
did not understand your answer?
1 answer
286 views
A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that
1 answer
3,298 views
if cos 2 theta = -(1/3) and theta is in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta
1 answer
1,614 views
If sin 2 theta = (2/5) in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta.
0 answers
650 views
How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or
1 answer
606 views
How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or
1 answer
1,518 views
for a person 6 feet tall who weighs 200 pounds, find the value for k in the equation w = kh to the 3rd power
1 answer
393 views
A particle is moving around the unit circle (the circle of radius 1 centered at the origin). At the point (.6, .8) the particle
1 answer
854 views
Determine the domain and range of the function.
4-X^2 if x<0 f(x)= 4-2X if x≤x≤2 sqrt(x-2) If x>2
0 answers
378 views
I have a question about this phrase translated to Spanish.
"Well, yes. I enjoy studying Spanish very much." Is it this way? Pues
2 answers
1,114 views
Fine the size of the following matrix and its additive inverse matrix. Identify if it is a square,
column, or row matrix: [ 2 -3
1 answer
618 views
This is about direct variation.
The area a painter can paint varies directly with the amount of time he works. One morninig, he
1 answer
871 views
Simplify:
(cosx + cos2x + cos3x + cos4x + cos5x + cos6x) / (sinx + sin2x + sin3x + sin4x + sin5x + sin6x) into a single Cotangent
2 answers
1,741 views
Find the maximum area of a rectangle inscribed between the x-axis and f(x)=-x^4+3
1 answer
923 views
Find the periodic payment that will amount to the given sum under the given conditions: S=$150,000; interest is 6% compounded
0 answers
748 views
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