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Casey

Questions (327)

At what speed would a 1140-kg car have the same momentum as a 12,600-kg truck traveling at 25 km/hr?The hint given to this
1. 1 answer
2. 1,333 views
An object slides without friction in a bowl shaped like a hemisphere. It is released from rest at one edge of the bowl, slides
1. 2 answers
2. 818 views
A ball is thrown upward and allow to fall under the influence of gravity. We will ignore the effects of air resistance. We
1. 2 answers
2. 683 views
A parachutist with mass 79.7 kg jumps from an airplane traveling at a speed vi= 112 km/hr at a height H = 2570 m. He lands with
1. 1 answer
2. 2,646 views
A box is pushed across the floor against a constant frictional force. The box is pushed across the room to the east in 30
1. 1 answer
2. 1,496 views
A car traveling at 20 miles/hour stops in a distance of 15 feet when its brakes are locked. Assuming that the frictional force
1. 0 answers
2. 769 views
A 645-kg elevator starts from rest and reaches a cruising speed of 1.47 m/s after 3.13 seconds. It moved 2.75 m during that
1. 1 answer
2. 989 views
A crate of mass 0.812 kg is placed on a rough incline of an angle 35.3 degrees. Near the base of the incline is a spring of
1. 2 answers
2. 3,249 views
A tall bald student (height 2.1 meters and mass 91.0 kg) decides to bungee jump off a bridge 36.7 meters above the river. The
1. 2 answers
2. 894 views
A construction crew pulls up an 87.5 kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the
1. 1 answer
2. 584 views
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the
1. 1 answer
2. 1,080 views
A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.87-g pellet
1. 1 answer
2. 2,402 views
A child rides on a Ferris Wheel at the State Fair.The seat always faces to the right. There are three forces that act on the
1. 1 answer
2. 682 views
An object is moving in a circle at a constant speed. From this you can be certain thata) there are at least two forces acting on
1. 2 answers
2. 1,407 views
A pendulum of length L=26.0 cm and mass m= 168 g is released from rest when the cord makes an angle of 65.2 degrees with the
1. 0 answers
2. 569 views
At approximately what rate would you have to invest a lump-sum amount today if you need the amount to triple in six years,
1. 2 answers
2. 842 views
NVM's preferred stock currently has a market price equal to $80 per share. If the dividend paid on this stock is $6 per share,
1. 0 answers
2. 457 views
While on the moon, the apollo astronauts enjoyed the effects on gravity so much smaller then that ont he earth. If neil
1. 1 answer
2. 745 views
a piece of ribbon is 4 1/2 feet long. a piece of blue ribbon is 1 yd long. How many feet longer is the piece of red ribbon than
1. 2 answers
2. 626 views
Graph-4x+y>-6 5y<=-x-20 Then give 2 ordered pairs that solve it& 2 ordered pairs that don't solve it
1. 0 answers
2. 565 views
A farmer has 165 feet of fencing material in which to enclose a rectangle area. He wants the length x to be greater than 50 feet
1. 2 answers
2. 1,579 views
The popultion of Medford High is 800 students & the population of WEstville High is 1240 students. Medfords pop. has been
1. 1 answer
2. 2,744 views
prime and composite arrays are hard .Help please .
1. 1 answer
2. 321 views
Julia deposits $900 in a savings certificate that pays 6.5 % annually. How much money will Julia have at the end of one year?
1. 1 answer
2. 543 views
How large a sample from N(80,20) population is needed so that the sampling distribution of the mean has a standard deviation of
1. 0 answers
2. 401 views
An angry construction worker throws his wrench downward from a height of 128 feet with aninitial velocity of 32 feet per second.
1. 1 answer
2. 545 views
A hill is 290 m long and makes an angle of 10 degrees with the horizontal. As a 68 kg jogger runs up the hill, how much work
1. 2 answers
2. 1,684 views
write 1.06X as a sum
1. 1 answer
2. 493 views
The fastest recoded pitch in Major league baseball was thrown by nolan ryan in 1974. If this pitch were thrown horizontally, the
1. 0 answers
2. 672 views
If the date was March 22 and one saw the noon sun at 35 degrees south above the horizon, what latitude is one at?
1. 1 answer
2. 464 views
A package of medical supplies is released from a small airpllane flying a mercy mission over an isolated jungle settlement. The
1. 1 answer
2. 666 views
Please determine the noon sun angle at the given latitudes on April 11:40 degrees north 0 degrees
1. 1 answer
2. 861 views
How many hours of daylight occur at the following locations on the specified dates?March 22 ---------------- 40 degrees north 0
1. 1 answer
2. 1,543 views
A motor cyclist traveling at 30 m/s accelerates uniformly for 5 seconds to v= 40 m/s. H then maintains a constant velocity for
1. 2 answers
2. 684 views
Question partPoints Submissions 1 0/1 5/15 Total 0/1 You ride your bike for 1.5 h at an average velocity of 11 km/h, then for 30
1. 0 answers
2. 484 views
A force of 400.0 N is exerted on a 1,250 N car while moving it a distance of 3.0m. How much work was done on the car?
1. 0 answers
2. 652 views
An artillery shell is fired with an initial velocity of 300 m/s at 65.0° abovethe horizontal. To clear an avalanche, it
1. 0 answers
2. 1,054 views
Calculate each binomial probability:a. X = 2, n = 8, ð = .10 b. X = 1, n = 10, ð = .40 c. X = 3, n = 12, ð = .70 d. X = 5, n
1. 1 answer
2. 486 views
A lottery ticket has a grand prize of $28 million. The probability of winning the grand prize is .000000023. Based on the
1. 1 answer
2. 1,074 views
If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions?I found the
1. 2 answers
2. 995 views
It says to write the balanced equation for the complete combustion of cyclobutanol in Oxygen. I'm not even sure what the product
1. 2 answers
2. 1,908 views
For which of the following reactions is the value of Delta H rxn equal to Delta H of formation?I. 2Ca(s) + O2(g) --> 2CaO(s) II.
1. 2 answers
2. 6,402 views
What is the de Broglie wavelength, in meters, associated with a proton. (mass = 1.673 x 10^-24g) accelerated to a velocity of
1. 1 answer
2. 767 views
One of the lines in the spectrum of a mercury vapor lamp has a wave length of 254nm. What is the energy, in kj/mol, of this
1. 2 answers
2. 515 views
If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? (the molar
1. 1 answer
2. 885 views
The density of Hg is 13.6g/cm^3. How many Hg atoms are present in 10.0cm^3 of Hg?I think the size of an atom is 6.22 x 10^23.
1. 4 answers
2. 569 views
I cannot figure this out. It seems so simple, and I should know it.The density of tungsten is 19.3g/cm^3 Express this value in
1. 2 answers
2. 535 views
Last one I promise! Thankyou for bearing with me. This seems simple enough, but chemistry genuinely makes me feel ed so I
1. 3 answers
2. 823 views
What is the % by mass of chlorine in CH2Cl2?I calculated the molar mass of CH2Cl2 which is 84.93. I than calculated the molar
1. 1 answer
2. 1,593 views
Use the equation below and determine what volume of O2 at STP is needed to react with 1.5 moles of C2H4?Balanced equation: C2H4
1. 6 answers
2. 4,184 views
How many grams of CH4 are required to produce 43 g of Cu according to the following equation: 4CuO + CH4 --> CO2 + 2H20 + 4Cu?I
1. 2 answers
2. 2,524 views
When 0.668 L of Ar at 1.20 atm and 227°C is mixed with 0.258 L of O2 at 501 torr and 127°C in a 400 mL flask at 27°C, what is
1. 1 answer
2. 616 views
I am having a horrible time with Enthalpy change. I understand how to find specific heat I believe, but the heat capacity of the
1. 2 answers
2. 573 views
My mind is bleeding again. I am trying to figure out the molarity of acetic acid in Vinegar. We used a standard solution of .613
1. 1 answer
2. 571 views
What volume of 0.300 M Na3PO4 is required to precipitate all the lead(II) ions from 140.0 mL of 0.400 M Pb(NO3)2?I desperately
1. 2 answers
2. 2,960 views
Where can I find case studies of businesses that advertised and businesses that didn't?
1. 1 answer
2. 436 views
I have a question. I wrote a research paper and used MLA. I referenced from a book three different times in my paper. When I do
1. 0 answers
2. 544 views
I have a question. I wrote a research paper and used MLA. I referenced from a book three different times in my paper. When I do
1. 1 answer
2. 548 views
How do you study for math???
1. 1 answer
2. 391 views
How do I get a D if F to a B or A
1. 2 answers
2. 732 views
Take an odd digit and use it exactly three times, so that the three digits are equal in value to an even number.ADDITION,
1. 0 answers
2. 412 views
At the Philadelphia (Constitutional) Convention, what do you see as the general goal ofthe majority of the delegates? Did the
1. 0 answers
2. 426 views
Explain why methanol and acetone are not suitable solvents for extractingorganic compounds from aqueous solutions.
1. 1 answer
2. 1,012 views
What are the three ways to put numbers in expanded form?
1. 1 answer
2. 559 views
How to find debt ratio
1. 1 answer
2. 516 views
Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved?1b. Did you know a
1. 4 answers
2. 636 views
The values of outstanding bonds change whenever the going rate of interest changes. Ingeneral, short-term interest rates are
1. 0 answers
2. 626 views
Which pair of molecules has the strongest dipole-dipole interactions?a- CO2 and CO2 b- CO2 and CH4 c- NH3 and NH3 d- NH3 and CH4
1. 2 answers
2. 3,965 views
Which pair of molecules has the strongest dipole-dipole interactions?a- CO2 and CO2 b- CO2 and CH4 c- NH3 and NH3 d- NH3 and CH4
1. 1 answer
2. 1,571 views
What is the number pattern between the following numbers. and why arranged this way8 5 4 1 7 6 3 2 0
1. 1 answer
2. 406 views
3x-7=5x+13, what is x?
1. 2 answers
2. 302 views
Over time acids in ground water can result in the formation of karst topography, such as ___________ which i figured was
1. 3 answers
2. 380 views
Draw the Lewis structure for N2H2, a neutral molecule.
1. 1 answer
2. 1,104 views
What is a coterminal angle with 170 degrees?
1. 3 answers
2. 3,637 views
What feature of light energy makes it different from other kinds of energy?
1. 0 answers
2. 209 views
Evaluate the series.9 ‡” log(k+1/k) k=4
1. 0 answers
2. 363 views
How do you make that a matrix in the form of[1 0 A] [0 1 B] ? I have a system, but i missed the lessons on all that matrix
1. 0 answers
2. 1,049 views
can someone better explain to me what the independent/manipulated variable is in an experiment. also, i am not clear on what the
1. 1 answer
2. 642 views
could someone tell me if i used intimation in the following sentence correctly:The intimation that came over the loudspeaker
1. 9 answers
2. 446 views
1 L of 20 degrees C water is mixed with 4 L of 40 degrees celcius water. What will be the temp of this mixture?the only thing i
1. 1 answer
2. 484 views
what are other sciences that might provide information that is useful to biologists?i have not been able to find any internet
1. 1 answer
2. 532 views
our assignment for homework was to take a nursery rhyme and make it a different point of view. in order to do that we were
1. 1 answer
2. 805 views
our assignment for homework was to take a nursery rhyme and make it a different point of view. in order to do that we were
1. 2 answers
2. 636 views
can anybody give me an example of limited omniscient.i already know that it is where you can hear the thoughts of one of the
1. 2 answers
2. 649 views
Why do some minerals have large, defined crystal faces, while others are not visible?
1. 1 answer
2. 555 views
can one tell if two triangles are congruent if they are given only the angles and all of them are congruent to one another?
1. 2 answers
2. 992 views
The slope of the "secant line" between the points (2, 5) and (x, x 2 + 1) in simplified form is, what?
1. 2 answers
2. 417 views
Given f(x) = 4x 2 + 2x - 1, the simplified form of the difference quotient, [f(x+h) - f(x)]/h is, what?
1. 1 answer
2. 748 views
The slope of the "secant line" between the points (2, 5) and (x, x 2 + 1) in simplified form is, what?
1. 1 answer
2. 390 views
i need help to make sure i translated these sentences correctly...(1)Que tiempo hace? What is the weather? (2)Que hora es? What
1. 4 answers
2. 1,289 views
What ended the era of dual federalism?
1. 2 answers
2. 727 views
�ã(X+2)-X=0THE SQUARE ROOT OF (X+2)-x=0
1. 2 answers
2. 431 views
What was the agrarian and commercial reasons that promoted Manifest Destiny?
1. 1 answer
2. 455 views
can anybody help me find the pattern in these two sequences please!! I can find the next two terms after that myself. I have
1. 3 answers
2. 430 views
what are the views on restriction of immigration from all the parties (democratic, republican, and libertarian?)
1. 1 answer
2. 509 views
I reposted again down below, if you wouldn't mind looking. Thanks, much appreciated :)
1. 0 answers
2. 314 views
How do I do this: add the following vectors , 7m/s [N30E] and 2m/s [S17E] I know that you must use trigonometry and break stuff
1. 9 answers
2. 1,108 views
I don't get 2 math problems, if I could see how it's completed then I can do the other problems on my own. Can someone pls help
1. 1 answer
2. 659 views
I am lost on how to divide this problem and why they won't offer examples in the book is mind boggling.8x^4y^2/4x^7y^2
1. 1 answer
2. 487 views
184-p^2 when p=7
1. 1 answer
2. 335 views

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