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Questions Asked on December 4, 2010

A baseball is released at rest from the top of the washington Monument. It hits the ground after falling for 6.0 s. What was the
1. 3 answers
2. asked by Jesse
3. 3,825 views
The strength of a rectangular beam is proportional to width*depth^2. What are the dimensions of the strongest rectangular beam
1. 1 answer
2. asked by Susan
3. 3,686 views
A sample of gas confined in a cylinder with a movable piston is kept at constant pressure. The volume of the gas doubles when
1. 2 answers
2. asked by danny123
3. 3,488 views
Tickets numbered 1 to 1000 were sold in a raffle for which there was one prize. Mr Kahn bought all the tickets containing at
1. 2 answers
2. asked by Paige
3. 3,409 views
Caluclate the delta H for this reaction using standard enthalpies of formation. (The standard enthalpy of formation of liquid
1. 1 answer
2. asked by Ashley
3. 3,055 views
The shorter leg of a right triangle is 14 feet shorter than the longer leg. The hypotenuse is 26 feet. How long is each leg?
1. 2 answers
2. asked by Megan
3. 2,939 views
a mixture of methane and ethane is stored in a container at 294 mmHg. The gases are burned in air to form co2 and h2o. if the
1. 1 answer
2. asked by maggie
3. 2,716 views
Use the related acute angle to state an equivalent expression:a) tan 110 degrees b)sin 350 degrees
1. 4 answers
2. asked by Emily
3. 2,688 views
if the air temperature @ sea level were 23 C what would the air temperature be at a height of 2 km under avg conditions?
1. 3 answers
2. asked by lisa
3. 2,683 views
Find the standard form of the equation of the hyperbola with the given characteristics.foci: (±4, 0) asymptotes: y= +/- 3x
1. 2 answers
2. asked by lllll
3. 2,681 views
In a head dip bungee jump from abridge over a river, the bungee cord is fastened to the jumpers ankles. The jumper then steps
1. 1 answer
2. asked by Farah
3. 2,408 views
An automobile driver puts on the brakes and decelerates from 30.0 m/s to 0 in 10.0 s. What distance does the car travel?
1. 2 answers
2. asked by Jesse
3. 2,367 views
The copper(I) ion forms a chloride salt that has Ksp = 1.2 10-6. Copper(I) also forms a complex ion with Cl ‾.Cu+(aq) + 2 Cl
1. 2 answers
2. asked by Anonymous
3. 2,346 views
Find the rotational kinetic energy of the earth about the sun due to its orbit about the sun. The mass of the earth M is 6 x
1. 2 answers
2. asked by Maa
3. 2,171 views
calculate the normality of a solution prpared by dissolving 220.0 mg of K2Cr2O7 in 100 ml solution that will be used to oxidize
1. 2 answers
2. asked by Anonymous
3. 2,058 views
An airplane is traveling v = 850 km/h in a direction 38.5° west of north (Fig. 3-34).Figure 3-34. (a) Find the components of
1. 2 answers
2. asked by Anonymous
3. 2,056 views
Sometimes people get caught in a “downward spiral,” a case in which something leads to a result which in turn leads to more
1. 2 answers
2. asked by Anthony
3. 2,047 views
Can you please check if the following definitions are possible? Thank you1)The iamb is an unstress-stress pattern like the word
1. 4 answers
2. asked by Franco
3. 1,999 views
Find the critical numbers of the function on the interval 0 ≤ θ < 2π.f(θ) = 2cos(θ) + (sin(θ))^2
1. 2 answers
2. asked by Michael
3. 1,961 views
For the following reaction, 5.20 grams of propane (C3H8) are allowed to react with with 23.1 grams of oxygen gas.propane (C3H8)
1. 1 answer
2. asked by Austin Jekins
3. 1,865 views
a fruit is most commonly _______?A. modified root B. a mature female gametophyte c. mature ovary d. a thickened style e.
1. 5 answers
2. asked by milly
3. 1,850 views
A sharpshooter shoots the bullet horizontally over level ground with a velocity of 300m/s. At the instant that the bullet leaves
1. 4 answers
2. asked by Farah
3. 1,827 views
A large wooden wheel of radius R and the moment of inertia I is mounted on an axle so as to rotate freely. A bullet of mass m
1. 1 answer
2. asked by Gee
3. 1,769 views
A student flings a 23g ball of putty at a 225g cart sitting on a slanted air track that is 1.5m long. The track is slanted at an
1. 4 answers
2. asked by Farah
3. 1,730 views
1. A relationship between an employee and a supervisor is aA. horizontal relationship. B. vertical relationship. C. family
1. 3 answers
2. asked by hibo ahmed
3. 1,638 views
the measures of the angles of a quadrilateral are in the ratio of 1:2:3:4, find the measure of each angle
1. 5 answers
2. asked by Anonymous
3. 1,604 views
A paraglider is flying horizontally at a constant speed. Assume that only two forces act on it in the vertical direction, its
1. 1 answer
2. asked by hy
3. 1,584 views
What is the lewis structure for Propanoic Acid?
1. 1 answer
2. asked by Eddie
3. 1,549 views
Mt. Everest is more than 8,000 m high. How fast would an object be moving if it could free fall to sea level after being
1. 1 answer
2. asked by Jesse
3. 1,506 views
A nuclear power plant has an electrical power output of 1200 MW and operates with an efficiency of 31%. If excess energy is
1. 7 answers
2. asked by Stefan
3. 1,498 views
An 90 kg person steps into a car of mass 2600 kg, causing it to sink 2.35 cm on its springs. Assuming no damping, with what
1. 1 answer
2. asked by klk
3. 1,473 views
A car is driven 145 km west and then 65 km southwest. What is the displacement of the car from the point of origin (magnitude
1. 5 answers
2. asked by Anonymous
3. 1,423 views
Calculate the enthalpy change per gram for the combustion of ethane (C2H6(g)).
1. 1 answer
2. asked by Billy
3. 1,416 views
Which of the following is the BEST advice for increasing the number of "hits" on a scannable résumé? (Points: 5) Avoid jargon
1. 3 answers
2. asked by lisa
3. 1,394 views
A wooden box with a mass of 10.0kg rests on a ramp that is inclined at an angle of 25 degrees to the horizontal. A rope
1. 1 answer
2. asked by Nicolee
3. 1,381 views
Omar throws a rock down with speed 12 m/s from the top of a tower. The rock hits the ground after 2.0 s. What is the height of
1. 1 answer
2. asked by Jesse
3. 1,380 views
In the reaction: P4 (S) +Cl2 (g)PCl5(s),1. If you have 10.00 grams of Phosphorus to react with 220 grams of Chlorine gas,
1. 1 answer
2. asked by Jerome
3. 1,372 views
1. If 25 grams of Iron (III) hydroxide is dissolved in a 500mL volumetric flask, what is the Molarity of the solution?2. An
1. 1 answer
2. asked by Ivy
3. 1,349 views
A force of 100 N is applied tangentially to a disk of radius 10 cm and mass 0.5 kg. the disk is initially at rest. What is the
1. 1 answer
2. asked by Maa
3. 1,342 views
Vandalay Industries is considering the purchase of a new machine for the production of latex. Machine A costs $2,190,000 and
1. 1 answer
2. asked by Leigh
3. 1,331 views
Write a nuclear equation for the most likely mode of decay for each of the following unstable nuclides: Kr-74, Th-221, Br-85,
1. 1 answer
2. asked by Ari
3. 1,313 views
Car A, with mass of 1735kg, was traveling north at 45.5km/h and car B, with a mass of 2540kg, was traveling west at 37.7km/h
1. 2 answers
2. asked by Farah
3. 1,312 views
What is the molarity of ZnCl2 that forms when 30.0g of zinc completely reacts with CuCl2 according to the following reaction?
1. 1 answer
2. asked by Jenni
3. 1,277 views
Complete the following probability distribution table and then calculate the stated probabilities.Outcome a b c d e Probability
1. 0 answers
2. asked by Liz
3. 1,268 views
A jet plane is flying with a constant speed along a straight line, at an angle of 25.0° above the horizontal, as Figure 4.30a
1. 0 answers
2. asked by anonymous
3. 1,234 views
This refers to passive solar collector, where solar radiation is used to heat water. It is therefore not on the solar cells.What
1. 4 answers
2. asked by bark
3. 1,140 views
At 10:15 am snail 1 crossed the 65 cm mark with a velocity of 4cm/min. In a great burst of energy, Snail 1 raced to the 90 cm
1. 2 answers
2. asked by Ashley
3. 1,106 views
A nuclear power plant has an electrical power output of 1200 MW and operates with an efficiency of 31%. If excess energy is
1. 1 answer
2. asked by Chelsea
3. 1,105 views
Why is it essential to consider each domain when studying and discussing the theories of adult development? Provide an example
1. 1 answer
2. asked by db
3. 1,101 views
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2
1. 0 answers
2. asked by student
3. 1,100 views
A car is driven 145 km west and then 65 km southwest. What is the displacement of the car from the point of origin (magnitude
1. 2 answers
2. asked by Anonymous
3. 1,083 views
In one cycle a heat engine absorbs 530 J from a high-temperature reservoir and expels 310 J to a low-temperature reservoir. If
1. 1 answer
2. asked by Stefan
3. 1,065 views
A cable is lifting a construction worker and a crate The weights of the worker and crate are 915 and 1430 N, respectively. The
1. 2 answers
2. asked by hy
3. 1,048 views
How would you go about listing all of the integer ratios? I would like to have the integers listed in ascending order by the
1. 2 answers
2. asked by Gray
3. 1,036 views
People often make career changes in their lives. How would the humanistic theory of behavior explain this phenomenon?
1. 2 answers
2. asked by katrina
3. 1,010 views
eliminate parameter t whenx= ln(sqrt(1+t^2)+t) and y = sqrt(t^2+1 so to produce an equation y=f(x).
1. 0 answers
2. asked by Ang
3. 997 views
For my research paper I wrote about the affects of music on standardized test scores. Basically I tracked scores of elementary
1. 2 answers
2. asked by Jonathan
3. 979 views
If u reach into a hot oven to remove a pizza, ur arm is not burned by the hot air but would be burned if u touched the pan.
1. 2 answers
2. asked by Sydney
3. 963 views
Choose the best revision of this sentence: "I want an interview with you." (Points: 5)I anxiously await a phone call from you so
1. 2 answers
2. asked by lisa
3. 936 views
The mass of a uranium-238 atom is 3.95*10^-25kg. A stationary uranium atom emits an alpha particle with a mass of 6.64*10^-27kg.
1. 1 answer
2. asked by Farah
3. 935 views
A water skier has a mass of 73 kg. Find the magnitude of the net force acting on the skier when she lets go of the tow rope and
1. 0 answers
2. asked by hy
3. 919 views
A jet plane is flying with a constant speed along a straight line, at an angle of 25.0° above the horizontal, as Figure 4.30a
1. 1 answer
2. asked by angela
3. 916 views
Let A= {for all m that's an element of the integers | m=3k+7 for some k that's an element of positive integers}. Prove that A is
1. 1 answer
2. asked by Samantha
3. 913 views
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb
1. 14 answers
2. asked by dan
3. 889 views
consider the reaction in which 410g of Ca(NO3)2 react with just the right amount of lithium metal in a single replacement
1. 2 answers
2. asked by obi
3. 888 views
The space probe Deep Space I was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new
1. 3 answers
2. asked by anonymous
3. 866 views
what makes a piano laugh? itsa math riddle
1. 5 answers
2. asked by Anonymous
3. 862 views
*Only need input not doing it for me. PLEASEQUESTION: Some hydrocarbon fuels have sulfur present and contribute to air
1. 2 answers
2. asked by Sue
3. 856 views
If a sled reaches the base of the hill with a speed of 15.6m/s, how much work was done by the snow on the sled between points x
1. 4 answers
2. asked by Farah
3. 838 views
Two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a valve which
1. 0 answers
2. asked by joseph
3. 832 views
An aircraft has a lift-off speed of 120 km/hr. What minimum constant accelerationdoes this require if the aircraft is to be
1. 2 answers
2. asked by Jesse
3. 828 views
HOW MANY GRAMS OF SALT ARE REQUIRED TO PREPARE 300 G OF 15% SALT SOLUTION?HOW MANY GRAMS OF WATER ARE NEEDED?
1. 1 answer
2. asked by Anonymous
3. 825 views
roles of key players, ethical issues involved fo the scott paper company
1. 6 answers
2. asked by bobbi
3. 825 views
How many grams of BaSO4 can dissolve in 1.5 L of a 0.010 M solution of Na2SO4?Ksp= 1.1 x 10^-10 I thought the answer was
1. 2 answers
2. asked by Maddie
3. 816 views
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb
1. 5 answers
2. asked by dan
3. 789 views
The drawing shows a hydraulic chamber in which a spring (spring constant = 1292 N/m) is attached to the input piston, and a rock
1. 0 answers
2. asked by josh
3. 760 views
Points A and B are 13.0 apart. A charge of +8.0mu is placed at A and another charge at +5.0mu is placed at B. Point P i located
1. 0 answers
2. asked by Farah
3. 743 views
A group of doctors is trying to see if a vaccine causes a certain type of disease. They take individuals with the certain
1. 1 answer
2. asked by Melissa
3. 742 views
A mobile is constructed from a thin rod of mass 50 g and length 50 cm. Two hanging masses are positioned at each end of the rod.
1. 0 answers
2. asked by Qay
3. 742 views
For the following reaction, 4.35 grams of hydrogen gas are allowed to react with with 10.3 grams of ethylene (C2H4).hydrogen (g)
1. 0 answers
2. asked by Austin Jekins
3. 737 views
A colony of troglodytes has been in a lengthy feud with its neighbors on the adjacent cliff. Colony A finally develops an
1. 0 answers
2. asked by Anna
3. 732 views
16.7 grams of chlorine gas are allowed to react with with 3.31 grams of waterWhat is the maximum amount of hydrochloric acid
1. 2 answers
2. asked by Austin Jekins
3. 711 views
A person pulls a toboggan for a distance of 30.0 m along the snow with a rope directed 20.0° above the snow. The tension in the
1. 1 answer
2. asked by Anonymous
3. 706 views
Your firm is contemplating the purchase of a new $869,500 computer-based order entry system. The system will be depreciated
1. 0 answers
2. asked by Leigh
3. 706 views
Find the percent by mass of sodium chloride in a 1.35 M NaCl solution. The density of the solution is 1.06 g/mL..............how
1. 0 answers
2. asked by Stacy
3. 692 views
A star at the edge of the Andromeda galaxy appears to be orbiting the center of that galaxy at the speed of about 200km/s. The
1. 1 answer
2. asked by Farah
3. 692 views
Hi I really would appreciate your help.I am freshman in college and I want to be "Women's health nurse pracitioner". However,
1. 4 answers
2. asked by Lola
3. 688 views
The voltaic cell described by the cell notation has a standard emf (electromotive force) of 0.94 V. Calculate the value (J) for
1. 0 answers
2. asked by Roger
3. 687 views
which substace's solubility changes the most from 0 degrees celsius to 100 degrees celsius
1. 0 answers
2. asked by renee
3. 685 views
Let a, b, c, and d be integers, and let n be a positive integer. Prove that if a is congruent to c mod n and b is congruent to d
1. 1 answer
2. asked by Samantha
3. 684 views
16.7 grams of chlorine gas are allowed to react with with 3.31 grams of waterWhat is the maximum amount of hydrochloric acid
1. 2 answers
2. asked by Austin Jekins
3. 674 views
What is the longest wavelength for a standing wave, in the same length tube, that is open at one end and closed at the other?
1. 1 answer
2. asked by jaxson
3. 671 views
For the following reaction, 4.35 grams of hydrogen gas are allowed to react with with 10.3 grams of ethylene (C2H4).hydrogen (g)
1. 0 answers
2. asked by Austin Jekins
3. 671 views
A constant torque of 20 N.m is applied to a wheel pivoted on a fixed axis. At what rate is power being furnished to the wheel
1. 1 answer
2. asked by Maa
3. 670 views
A nuclear power plant has an electrical power output of 1200 MW and operates with an efficiency of 31%. If excess energy is
1. 0 answers
2. asked by Chelsea
3. 667 views
I have essay exam on martin luther king definition of justice in letter from birmingham jail and need help with this. The letter
1. 4 answers
2. asked by Mary
3. 667 views
Given the reaction 3C(s) + 4H2(g) + 5O2(g) ---> 3CO2(g) + 4H2O(l) ÄH= -2323.7 kJHow much heat would be released when 34.1 g of
1. 3 answers
2. asked by chemistry
3. 665 views
The interviewer wants to know why you got a "D" in all your English classes until this year, when you got a "B." Your best
1. 2 answers
2. asked by lisa
3. 664 views
Match each example to a heat mechanism. Terms may be used more than once.EXAMPLES: A. Water is heated on a stove. B. You feel
1. 4 answers
2. asked by Sydney
3. 661 views
A full can of black cherry soda has a mass of 0.406 kg. It contains 3.38 10-4 m3 of liquid. Assuming that the soda has the same
1. 0 answers
2. asked by amanda
3. 659 views

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