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Questions Asked on December 6, 2013

In a fission reaction, uranium-235 bombarded with a neutron produces strontium-94, another small nucleus, and 3 neutrons. Write
1. 2 answers
2. asked by Holly
3. 7,321 views
During a softball game, a batter hits a ball upward from an initial height of 3 feet. The height, in feet, of the softball is
1. 5 answers
2. asked by Samantha
3. 7,076 views
which of the following is a consequence of using fossil fuels as an energy source
1. 21 answers
2. asked by Anonymous
3. 5,351 views
Calculate the net work output of a heat engine following path ABCDA in Figure 14.30, where V1 = 5.0 10-3 m3 and V2 = 20.0 10-3
1. 1 answer
2. asked by sam
3. 5,273 views
The dosage of technetium-99m for a lung scan is 20 μCi/kg of body weight.How many millicuries should be given to a 65.0-kg
1. 2 answers
2. asked by lana
3. 3,361 views
Write a balanced equation for an alpha particle from Gd-148
1. 2 answers
2. asked by Maria
3. 2,934 views
What evidence was found from soft tissue samples of a remarkable well-preserved Tyrannosaurus Rex that provided molecular
1. 7 answers
2. asked by Anonymous
3. 2,869 views
Recall that the equation for the horizontal distance h in feet of a projectile with initial velocity v0 and initial angle theta
1. 2 answers
2. asked by LISA
3. 2,803 views
The half-life (t1/2) of a first order reaction is 0.100 s. What is the rate constant?a. 6.93 s-1 b. 0.693 s-1 c. 0.0693 s-1 d.
1. 4 answers
2. asked by Shines
3. 2,736 views
A reaction is first order in A. If the rate constant of the reaction is 3.45x10^-3 s-1, what is the half life of the reaction?a.
1. 1 answer
2. asked by Shines
3. 2,521 views
The height of the Washington Monument is measured to be 170 m on a day when its temperature is 35.0°C. What will the change in
1. 2 answers
2. asked by angela
3. 2,500 views
In triangle XYZ, the measure of angle Y is twice the measure of angle X, and the measure of angle Z is three times the measure
1. 4 answers
2. asked by David
3. 2,342 views
What different types of fossils can be formed through preservation?
1. 0 answers
2. asked by Anonymous
3. 2,314 views
to obtain the rate of the reaction 5Br-(aq) +BrO3- (aq) + 6H+ (aq) ---3Br2(aq) + 3H2O(l) you might follow the Br concentration
1. 1 answer
2. asked by Annette
3. 2,303 views
Draw a vertical line through a normal distribution for each of the following z-score locations. Determine whether the body is on
1. 1 answer
2. asked by Lyndyc
3. 2,262 views
A geologist is studying a layer of soil in the Sahara. The soil layer contains little humus but a lot of clay and other rock
1. 13 answers
2. asked by Mileena
3. 2,232 views
If x is the midpoint of line vy and wzAnd the prove is triangle vwx is congruent triangle yzx can you help me solve this using
1. 3 answers
2. asked by Anonymous
3. 2,114 views
The probability of not picking a purple marble out of a bag of marbles is 2/5, if 2 purple marbles are taken out of the bag,
1. 2 answers
2. asked by kim
3. 2,008 views
What are the zeroes of y = x2 – 2x – 15?–3, –5 3, 5 –3, 5 3, –5
1. 3 answers
2. asked by Sammy
3. 1,920 views
Optimization Problem:Find the dimensions of the right circular cylinder of greatest volume inscribed in a right circular cone of
1. 1 answer
2. asked by Alex
3. 1,719 views
In a simple card game, Player A wins a point if either a face card, a red prime number, or a black perfect square number is
1. 2 answers
2. asked by michelle
3. 1,653 views
Is it , The leaves were shaken from the branches .
1. 3 answers
2. asked by Gabe
3. 1,653 views
Complete the following fission reaction 1n0 + 235U92 → 131Sn50 + ? + 2 1n0 + energy
1. 1 answer
2. asked by ellie
3. 1,636 views
K+(aq) + Al3+(aq) + 2SO42-(aq) + 2H2O(l)→KAl (SO4)2 * 12H2O(s)Al is limiting and 1.007 g Find the theoretical yield and
1. 1 answer
2. asked by Emily
3. 1,513 views
In the addition problem at the bottom, the sum of the two digits represented by B and C is ?. Each time the same letter appears
1. 2 answers
2. asked by math
3. 1,434 views
Forces are applied to two ropes which are attached to the bumper of a stalled car. If F1 = 100 lbs at an angle of θ1 = 58
1. 0 answers
2. asked by nick
3. 1,404 views
Nine students took the SAT. Their scores are listed below. Later on, they read a book on test preparation and retook the SAT.
1. 2 answers
2. asked by Anonymous
3. 1,402 views
shelby wants to paint the walls and ceiling of a rectangular room. (height:2.6cm, width:4.8cm, length:6.8cm)type of paint size
1. 4 answers
2. asked by anonymous
3. 1,333 views
Which of the following statements is a true statement?A. A vector can have positive or negative magnitudes. B. A vector's
1. 0 answers
2. asked by laura
3. 1,312 views
Two bullet trains leave the station at the same time traveling in opposite direction. The northbound train goes 125 mph and the
1. 2 answers
2. asked by Ale
3. 1,281 views
Person A walks 6.0 m at an angle of 30 north of east. Person B walks 7.0 m at an angle of 42 west of north. How does the
1. 1 answer
2. asked by laura
3. 1,275 views
A boy jumps at a speed of 16.0 m/s at an angle of 20.0 above the horizontal. How long does he stay in the air before touching
1. 1 answer
2. asked by laura
3. 1,265 views
A normal distribution has a mean of ƒÝ = 100 with ƒã = 20. If one score is randomly selected from this distribution, what is
1. 1 answer
2. asked by Lyndyc
3. 1,248 views
Draw a vertical line through s normal distribution for each of the following z-score locations. Determine whether the tail is on
1. 1 answer
2. asked by Lyndyc
3. 1,194 views
Which of the following best describes the overall mood in Frost's poem?
1. 2 answers
2. asked by Tiffanie
3. 1,111 views
CLEAN CARPET COMPANYS CLEAN 3 ROOMS OF CARPETING FOR 144 DOLLARS. WHICH OF THE FOLLOWING IS AN EQUIVALENT RATE ?A.288 DOLLARS
1. 2 answers
2. asked by JAYNE
3. 1,106 views
A bicycle has a 100 cm diameter wheel. If you ride on and around a circle with a 10 km diameter 12 times, how many revolutions
1. 1 answer
2. asked by Xian
3. 1,098 views
In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at
1. 2 answers
2. asked by nikkie
3. 1,080 views
An aqueous solution containing 17.1 g of an unknown molecular compound ( nonelectrolyte) in 105.0g of water was found to have a
1. 0 answers
2. asked by John
3. 1,052 views
which of the following sets of term is associated with air pollution caused by burning fossil fuel jiskha homework
1. 1 answer
2. asked by Anonymous
3. 1,032 views
A 5 inch by 8 inch rectangle is enlarged to a similar rectangle whose smallest side measures 9 inches. What is the length in
1. 1 answer
2. asked by Xian
3. 1,009 views
It is estimated that are 21 deaths for every 10 million people who use airplanes. A company that sells flight insurance provides
1. 1 answer
2. asked by Josh
3. 959 views
If x is the midpoint of line vy and wz and the reason is given then wx=xz and vx=xy then angle wxv = angle yzx to get the
1. 1 answer
2. asked by Anonymous
3. 951 views
A builder has 8 lots available for sale.· Six lots are greater than one acre. · Two lots are less than one acre. What is the
1. 1 answer
2. asked by nikkie
3. 946 views
In the interval (0 is less than or equal to x which is less than or equal to 5), the graphs of y=cos(2x) andy=sin(3x) intersect
1. 0 answers
2. asked by Rasheda
3. 942 views
A farmer's tractor has gotten stuck in a muddy pasture. To try to free the tractor, the farmer ties a rope to a tree and the
1. 1 answer
2. asked by nick
3. 929 views
The first stirrings of the first Great Awakening took place inA. the backcountry. B. New England. C. the Carolinas. D. Virginia.
1. 2 answers
2. asked by Anonymous
3. 926 views
The gravitational acceleration on the surface of Mercury is 0.38 times that of Earth. Its radius is also about 0.38 times that
1. 0 answers
2. asked by Shelby
3. 925 views
Find six consecutive multiples of 6 whose sum is the least common multiple of 13 and 18.
1. 1 answer
2. asked by Kristen
3. 901 views
Which of the following animals will be placed farthest from the shown animal in a cladogram constructed based on anatomical
1. 0 answers
2. asked by Anonymous
3. 901 views
In convex quadrilateral ABCD, angle A is congruent to angle C, AB=CD=180, and AD is not equal to BC. The perimeter of ABCD is
1. 2 answers
2. asked by Sam
3. 896 views
A child and sled with a combined mass of 47.4 kg slide down a frictionless hill that is 8.61 m high. If the sled starts from
1. 1 answer
2. asked by katie
3. 893 views
1. The expression sinπ is equal to 0, while the expression 1/cscπ is undefined. Why is sinø=1/cscø still an identity?2.
1. 1 answer
2. asked by john
3. 886 views
A block of mass 2 kg is initially at rest on a horizontal surface. At time , we begin pushing on it with a horizontal force that
1. 5 answers
2. asked by juanpro
3. 877 views
The dosage of technetium-99m for a lung scan is 20 μCi/kg of body weight: Suppose a person absorbed 52mrads of alpha radiation.
1. 0 answers
2. asked by Pat
3. 867 views
eight burglary suspects, two of whom are guilty, are placed in a line up. suppose that a witness is asked to identify the two
1. 0 answers
2. asked by jake
3. 866 views
I have an assignment to write an equation to point-slope form, then to standard form, and then to slope-intercept form. I have
1. 5 answers
2. asked by Anonymous
3. 858 views
Two squirrels are sitting on a rope as shown. The tension in segment BD is TBD = 6.3 lb at an angle of ϕ = 47 degrees. The
1. 0 answers
2. asked by nick
3. 841 views
a number machine takes any number put into it, multiplies it by 3 and then subtracts 2. reuben put a number into the machine. he
1. 1 answer
2. asked by math
3. 840 views
What body of water touched Latin,Eastern Orthodox and pagan lands?
1. 3 answers
2. asked by Anonymous
3. 829 views
A yoyo of mass 2 kg and moment of inertia 0.04 kg m consists of two solid disks of radius 0.2 m, connected by a central spindle
1. 13 answers
2. asked by juanpro
3. 821 views
where are the incident and refracted rays located in relation to the normal
1. 1 answer
2. asked by siva
3. 794 views
Some incandescent light bulbs are filled with argon gas. What is vrms for argon atoms near the filament, assuming their
1. 0 answers
2. asked by angela
3. 786 views
Your hole punch makes holes in your that have diameter of 4^-1 inch.a.Write an expression for the area of one punched hole. Use
1. 2 answers
2. asked by Louis
3. 781 views
Do you think rounding borderline letter grades up or down is a fair practice? Or should they just stay where they are? For
1. 3 answers
2. asked by Gloria
3. 769 views
Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps.Write an
1. 1 answer
2. asked by Anonymous
3. 767 views
A yoyo of mass m=2 kg and moment of inertia ICM=0.09 kg m2 consists of two solid disks of radius R=0.3 m, connected by a central
1. 14 answers
2. asked by Anonymous
3. 764 views
A 0.0400 kg ice cube at -30.0°C is placed in 0.400 kg of 35.0°C water in a very well insulated container. What is the final
1. 0 answers
2. asked by angela
3. 758 views
Consider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 10 %
1. 4 answers
2. asked by anonymous
3. 757 views
What is the maximum number of points of intersection of two different lines and three different circles in the same plane?
1. 1 answer
2. asked by Xian
3. 757 views
MITA uniform disc of mass m and radius r is acted upon by three forces. find the magnitude of angular acceleration and the sense
1. 3 answers
2. asked by Hil
3. 754 views
The espresso project you are heading up will do well with probability 0.80. Given that it does well, you believe that the herbal
1. 0 answers
2. asked by nemo
3. 753 views
A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a
1. 3 answers
2. asked by juanpro
3. 744 views
A cheetah can accelerate from rest to 24.1 m/s in 2.02 s.a) Assuming the acceleration is constant over the time interval, what
1. 1 answer
2. asked by jenny
3. 737 views
Which is NOT a responsibility of the Department of Housing and Urban Development?A. The coordination of federal housing programs
1. 1 answer
2. asked by Rodrigo Martinez
3. 727 views
A wood cube 0.20m on each side has a density of 730kg/m3 and floats levelly in water.What mass has to be placed on top of the
1. 1 answer
2. asked by HELP!!!!
3. 726 views
Consider a rocket in space that ejects burned fuel at a speed of 1.5 km/s with respect to the rocket. The rocket burns 9 % of
1. 4 answers
2. asked by juanpro
3. 699 views
A source of sound emits waves at a frequency 650 Hz. An observer is located at a distance 190 m from the source. Use m/s for the
1. 10 answers
2. asked by juanpro
3. 693 views
A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a
1. 8 answers
2. asked by Anonymous
3. 686 views
Consider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 8 %
1. 0 answers
2. asked by KS
3. 686 views
What mood best describes "Elegy Written in a Country Churchyard"?
1. 1 answer
2. asked by Kim
3. 683 views
Does anyone know of a Photosynthesis concept map that includes all of the following: Photons, thylakoids, reactions, sun, NADPH,
1. 0 answers
2. asked by Jane
3. 680 views
Solve the equation 2x + 5y - 3z = -1. Write the general solution as a matrix equation.[x] [ ] [1] [y]= [ ] X [s] [z] [ ] [t] I'm
1. 4 answers
2. asked by Ann
3. 679 views
if the point (3/5,4/5) corresponds to an angle È in the unit circle, what is tan È?
1. 1 answer
2. asked by matt
3. 679 views
a die is thrown twice. what is the probability that the sum of the rolls is greater than 9 given that the first roll is a 4?
1. 3 answers
2. asked by michelle
3. 677 views
A barefoot ﬁeld-goal kicker imparts a speedof 44 m/s to a football initially at rest. If the football has a mass of 0.49 kg
1. 1 answer
2. asked by Lindsey
3. 673 views
Can anyone help me with this problem? I need to show all steps and explain what is happening. A graph would be great for a
1. 1 answer
2. asked by Lois
3. 671 views
A ruler stands vertically against a wall. It is given a tiny impulse at such that it starts falling down under the influence of
1. 11 answers
2. asked by juanpro
3. 663 views
A spherical non-rotating planet (with no atmosphere) has mass m1= 6 ×10 24 kg and radius r 1= 9000 km. A projectile of mass m
1. 0 answers
2. asked by juanpro
3. 655 views
in a sample of 159,949 first year college students, the national survey of student engagement reported that 39% participated in
1. 2 answers
2. asked by sara
3. 653 views
Find the missing numbers for the dimensions and measures of a rectangular prism...Length ? Width 7 m Height 5 m Surface Area 214
1. 1 answer
2. asked by Jacob
3. 651 views
Which is NOT a responsibility of the Department of Health and Human Services?=A. To coordinate federal subsidized housing
1. 1 answer
2. asked by Rodrigo Martinez
3. 648 views
Select the letter of the answer that best corrects the element in parentheses. Answer should reflect clearest and concise
1. 3 answers
2. asked by Destin
3. 647 views
1. To avoid a steep descent, an airplane flying at 10 000 m starts its descent 60km away from the airport. For the angle of
1. 2 answers
2. asked by McKenna Louise
3. 644 views
A 5.0 kg \rm kg, 52-cm \rm cm-diameter cylinder rotates on an axle passing through one edge. The axle is parallel to the floor.
1. 1 answer
2. asked by Chloe
3. 642 views
An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the
1. 1 answer
2. asked by ty
3. 636 views
A yoyo of mass m=1 kg and moment of inertia ICM=0.045 kg m2 consists of two solid disks of radius R=0.3 m, connected by a
1. 0 answers
2. asked by KS
3. 635 views
-the plan of Tutankhamun's tomb when Howard Carter found it-When did Carter go into the different rooms? What do you think? Put
1. 1 answer
2. asked by rfvv
3. 634 views
in a sample of 159,949 first year college students, the national survey of student engagement reported that 39% participated in
1. 0 answers
2. asked by hershi
3. 625 views
number sense what division sentence means the same as the following subtraction sentences?12-4=8 8-4=4 4-4=0
1. 2 answers
2. asked by Jim
3. 624 views

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