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Mat

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Questions (73)

We have a problem in AP Physics that we just can't get. It has to do with vector addition. The problem is:If aA+bB+C=0, find the
1. 1 answer
2. 481 views
A silver-copper alloy had a mass of 0.1264g. When the alloy was dissolved in nitric acid and the silver precipitated as silver
1. 2 answers
2. 848 views
Which of the following contributed most to the development of religious toleration in the British colonies?(A) The stand of
1. 2 answers
2. 550 views
how do i figure this out step by step?3x-7=5x+13
1. 4 answers
2. 421 views
How do you calculate the thermal amplitude
1. 2 answers
2. 822 views
Real GDP equaled $9,191 billion in 2000 and $9,215 billion in 2001. Both figures are adjusted for changes in the value of the
1. 5 answers
2. 596 views
I am a non-metal.I belong to the Halogen family. I am not the largest or smallest atom in my group. My first ionization energy
1. 3 answers
2. 1,335 views
I am a metal.I am a transition metal. I have the smallest atomic radius in my group. I have 6 valence electrons. What element am
1. 1 answer
2. 1,030 views
I am a main group element.I have 3 p-orbital electrons in my valence shell. I have a lower first ionization energy than arsenic.
1. 3 answers
2. 1,104 views
I am in the p-block of the Periodic Table.My melting point is the highest in my period (ignore tansition metals). I am not the
1. 2 answers
2. 545 views
Observations are taken on sales of a certain mountain bike in 30 sporting goods stores. The regression model was Y = total sales
1. 1 answer
2. 1,262 views
If 18.0g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O how many grams of H2Oare produced
1. 4 answers
2. 2,971 views
An investment will pay $100 at the end of each of the next 3 years, $400 at the end of Year 4, $600 at the end of Year 5, and
1. 2 answers
2. 607 views
Can someone help please:What are 2 events that ended the Progressive era?
1. 1 answer
2. 436 views
2= squaredx2+y2+z2+36 then square rooted and then the number must be rational. I need x y and z. I already used 10 8 and 5
1. 1 answer
2. 600 views
A diver runs and dives off the end of a spring board that is 0.9 meters above the surface of the water. As she takes off from
1. 2 answers
2. 628 views
After a day of testing race cars, you decide to take your own 1590 kg car onto the test track. While moving down the track at
1. 1 answer
2. 521 views
Five forces act on an object.(1) 63 N at 90° (2) 40 N at 0° (3) 75 N at 270° (4) 40 N at 180° (5) 50 N at 60° What are the
1. 1 answer
2. 406 views
Five forces act on an object.(1) 63 N at 90° (2) 40 N at 0° (3) 75 N at 270° (4) 40 N at 180° (5) 50 N at 60° What are the
1. 1 answer
2. 873 views
Five forces act on an object.(1) 63 N at 90° (2) 40 N at 0° (3) 75 N at 270° (4) 40 N at 180° (5) 50 N at 60° What are the
1. 1 answer
2. 386 views
An object in equilibrium has three forces exerted on it. A 30 N force acts at 90° from the x axis and a 48 N force acts at
1. 1 answer
2. 1,165 views
N=0.04x-78.34 determine the year in which there were 1.9million inmates
1. 1 answer
2. 407 views
A 2.3 kg block slides down a 25° inclined plane with constant acceleration. The block starts from rest at the top. At the
1. 3 answers
2. 613 views
Two identical positive charges exert a repulsive force of 7.0 10-9 N when separated by a distance of 3.2 10-10 m. Calculate the
1. 4 answers
2. 1,465 views
Find the derivative of the following function: f(x)= 10x-3/5x +6x
1. 4 answers
2. 1,101 views
Find the derivative of the following function f(x)=(x-3/2x+3)^2
1. 1 answer
2. 305 views
A manufacturer wishes to produce the most economical packaging for detergent.The containers need to hold 25litres and must be
1. 2 answers
2. 668 views
Find the volume of the solid that is obtained when the region under the curvey = 4 − x^2/6 is revolved around the y -axis
1. 1 answer
2. 981 views
Find the area of the region between the parabola 4y = x^2 and the line 3x + 4 y = 4
1. 2 answers
2. 1,019 views
A particle moves in a straight line under a force such that its displacements(t), in metres, at time t seconds, is given by s(t)
1. 1 answer
2. 458 views
Give a geometric description (including a sketch) of the integral 0∫3 2x − 3x dx .
1. 1 answer
2. 330 views
Read the following paragraphs and write a topic sentence that expresses the main idea of each.For example, if it is a sport,
1. 9 answers
2. 668 views
I have never been a good problem solver. I am not direct enough to be successful," the client complained. "You do not see
1. 3 answers
2. 1,393 views
One of the interesting aspects of family therapy is the "system" or roles which are assumed by family members. A good example
1. 3 answers
2. 487 views
Unfortunately I have a D in the class, but I am an A student." When there is a difference between what I believe and what I do,
1. 3 answers
2. 604 views
Do you think John forgets the time of his appointments? Perhaps he is always late because it makes him feel powerful or, maybe
1. 2 answers
2. 579 views
A fleet of large trucks arrived in the mall parking lot after Janelle parked her car. When she returned to the lot she could not
1. 3 answers
2. 1,854 views
What is the apparent weight of a 25kg lead block submerged in the dead sea? (density of dead sea is 1240kg/m3)
1. 2 answers
2. 617 views
Find the real and imaginary parts of the following complex numbers:(i) 1.5e^jπ/4 (ii) je^1.2 + j^2 e
1. 2 answers
2. 1,039 views
A school booster club is selling T-shirts. The silk screening company is selling shirts to the boosters for $3 each, plus a
1. 2 answers
2. 893 views
Michelle will divide 36 herbal tea bags and 48 mint tea bags among gift boxes. Each gift box will have the same number of herbal
1. 2 answers
2. 532 views
This was on my test and have a few more question that is from my test.18.The Sum of five unequal natural numbers is 90. The
1. 2 answers
2. 521 views
1.A father can do a job in a certain number of hours. His son takes twice as long to do the job. Working together, they can do
1. 3 answers
2. 640 views
How many electrons are in p orbitals in an atom of oxygen?I answered 8 and 6 but it's wrong. Can anyone pls help.
1. 3 answers
2. 1,912 views
By mass a certain material is 75% sand and another is 30% sand. How many tonnes of each must be mixed in order to have 250
1. 1 answer
2. 432 views
Given f (t) = t^3 −3 , find f(a - 1).
1. 1 answer
2. 349 views
The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r1−γ , where γ is a
1. 2 answers
2. 501 views
Good afternoon,I need a bit of help. So ive got my first derivative which is 6x^2-6x-12 and the stationary points ive found are
1. 2 answers
2. 598 views
A closed box is to be made in the shape of a cubiod, of height h cm and with a square base that has sides of length x cm.Its
1. 2 answers
2. 525 views
Long shot but does anyone have experience of using Maxima (maths program) for finding stationary points.My user guide offers no
1. 4 answers
2. 584 views
Good morning,Just working through an example but ive gotten stuck and need some help. So find the least residue of 8^123 Mod 61
1. 4 answers
2. 631 views
A 0.45-kg soccer ball is kicked at an angle θ above the ground with initial speed vi. Determine the height of the ball as a
1. 4 answers
2. 1,340 views
A ballistic pendulum is a device for measuring bullet speeds. One of the simplest versions consists of a block of wood hanging
1. 3 answers
2. 1,674 views
Show that -3 is a multiplicative inverse of 17 modulo 26.
1. 2 answers
2. 942 views
I would like to write vector expressions and determine the andle the slipe makes with the horizontal for the following.a 2kg
1. 1 answer
2. 354 views
Need a bit of help solving the following equations.sqrt(5/8-(sqrt(5)/8))LH+cos (43pi/180)RH = 0 and
1. 5 answers
2. 474 views
How do I work out the second quadrant parametrisation of 5x^2+16y^2=45.I have x=3 cos t, y=3sqrt5/4 sin t so far. Thanks
1. 2 answers
2. 499 views
Good morning,I have this question: the matrix A = 0 6 4 12 i) show that it is invertable. ii)Find the equation of the image f(c)
1. 1 answer
2. 469 views
Good morning.Quick question. dr/dt=K/r^2 When the radius is 3cm, the radius is increasing at a rate of 5/36pi. Use this fact to
1. 3 answers
2. 466 views
Let y = sinx + ztanx,where z is a function of x. If (dy/dx)= z+ cosx, show that (d^2y/dx^2) =-y.I really have no idea how to do
1. 3 answers
2. 359 views
f(sqrt 3-sqrt 2)=x^2-3x+4
1. 3 answers
2. 274 views
What type of atomic orbital has 2 nodal planes?? I got 3d, but would it be just d since nodal planes = angular momentum #??
1. 2 answers
2. 545 views
The mean amount of money withdrawn from a bank ATM on a particular day was $120. If Lauren withdrew $80 and her z-score was
1. 2 answers
2. 660 views
Hi everyone.Im not sure how to draw PLA and PAL Circuit for the following Boolean expression "F=A+~B+D". can someone please
1. 1 answer
2. 393 views
Hi everyone.Im not sure how to draw PLA and PAL Circuit for the following simplified Boolean expression "F=A+~B+D" its a 4 input
1. 1 answer
2. 366 views
what products result from mixing aqueous solutions Cu(C2H3O2)2(aq) and Rb3PO4(aq)?
1. 4 answers
2. 2,261 views
What kind of reaction is for the following equation:CO2 + CaCO3 + H2O = Ca(HCO3)2 (ie is it a DDR, SDR, Synthesis, etc)
1. 1 answer
2. 438 views
I’m a bit stuck on this simple question.So the values I’ve got: Propellant = 100,000 kg Structure = 10,000 kg Payload = 5000
1. 1 answer
2. 309 views
1. Two masses m1 and m2 exert a gravitational force of 12 N onto each other when they are 6 m apart.What will the gravitational
1. 1 answer
2. 332 views
How to solve this 4x – 6 + 3(2 – x) = 2x – (x – 4
1. 1 answer
2. 55 views
Aluminum is produced from bauxte ore and can be used for many things. Which option describes a common production use of
1. 4 answers
2. 430 views
What are the common uses of the mineral quartz?
1. 1 answer
2. 217 views
What is the major cause of the greenhouse effect?
1. 7 answers
2. 516 views

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