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Kyle

Questions (570)

"A slinky that satisfies v = sqrt(T/_mu) is stretched 12m. The mass of the slinky is 0.8kg. The tension on the slinky is 4N.
1. 1 answer
2. 415 views
Simplify exactlylog_2 1/16
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2. 376 views
Why is it necessary to collimate the light source before using the prism to disperse the light?A. If white light enters the
1. 1 answer
2. 1,789 views
In a tracer method the potassium isotope 42K is used for labelling. The half life of 42K is 12.5 hours. If No is original number
1. 2 answers
2. 495 views
1/1024=42*0.5^(t/12.5)Solve for t. Please show work. Much appreciated!
1. 3 answers
2. 435 views
u-2√u=3. what is u?
1. 1 answer
2. 641 views
The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the
1. 3 answers
2. 3,213 views
The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the
1. 1 answer
2. 754 views
The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the
1. 1 answer
2. 666 views
I have a hard time getting this someone help me?Astronauts often use the unit light year to express intergalactic distances. If
1. 2 answers
2. 833 views
Explain in words, how you would solve:3(n-8) = 12 + 2n
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2. 303 views
a poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the perimeter of
1. 6 answers
2. 460 views
anoter poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the
1. 1 answer
2. 424 views
How are radioisotopes used to make biochemical reactions?
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2. 393 views
If I have cards numbered 1 through 40 and I randomly draw 3 then replace them, shuffle them and draw three again what are the
1. 1 answer
2. 442 views
"A person is playing a small flute 10.75 cm long, open at one end and closed at the other, near a taut string having a
1. 1 answer
2. 1,869 views
Ordinary glasses are worn in front of the eye and usually 2.00 cm in front of the eyeball. A certain person can see distant
1. 1 answer
2. 590 views
Ordinary glasses are worn in front of the eye and usually 2.00 cm in front of the eyeball. A certain person can see distant
1. 2 answers
2. 2,244 views
Ordinary glasses are worn in front of the eye and usually 2.00 cm in front of the eyeball. A certain person can see distant
1. 0 answers
2. 1,105 views
Compute9(sub)C(sub)6
1. 1 answer
2. 895 views
A fan at a rock concert is 45.0 m from the stage, and at this point the sound intensity level is 108 dB. Sound is detected when
1. 6 answers
2. 2,876 views
Solve and simplify(3+9i)-(12-5i) 8+6i/7-5i
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2. 443 views
Solve the systemx^2+y^2-4x+2y=20 4x +3y =5
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2. 398 views
A circular loop of wire with radius 0.0450 m and resistance 0.154 R is in a region of spatially uniform magnetic. The magnetic
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2. 1,120 views
It requires 17.9 mL of 0.120 M KOH to titrate 78.0 mL of an HCl solution of unknown concentration. Calculate the initial HCl
1. 1 answer
2. 538 views
Calculate the OH - concentration present in water under the following conditions. Enter your answer in scientific notation.A)[H3
1. 1 answer
2. 780 views
A 11.0% (w/v) solution of ethyl alcohol is diluted from 51.0 mL to 230.0 mL. What is the new weight/volume percent?
1. 1 answer
2. 483 views
Consider the following reaction.2KClO3(s) �¨ 2KCl(s) + 3O2(g) A)How many grams of KCl are produced from the complete reaction
1. 2 answers
2. 1,017 views
suppose a 1.50 kg object is suspended from the end of a silicone band. when the object is pulled down and released, the band
1. 0 answers
2. 357 views
suppose a 1.50 kg object is suspended from the end of a silicone band. when the object is pulled down and released, the band
1. 1 answer
2. 403 views
A Be3+ ion absorbs a photon with a frequency of 7.31 × 1015 Hz. If the energy of the final state of the Be3+ ion was -3.88 ×
1. 1 answer
2. 668 views
A light photon with a frequency of at least 0.0373 × 1016 Hz is required to split apart diiodine according to the equation:I2(g
1. 1 answer
2. 593 views
Calculate the energy in kJ/mol of a mol of photons in the ultra-violet region of the electromagnetic spectrum that has a
1. 3 answers
2. 1,092 views
I did the work, but I need help checking it...A compound contains 83.24% by mass carbon. Calculate the molar mass of the
1. 0 answers
2. 1,008 views
Based on the balanced equation2NBr3 + 3NaOH → N2 + 3NaBr + 3HOBr calculate the number of of excess reagent units remaining
1. 1 answer
2. 1,620 views
A 0.7381 g sample of a compound containing C, H, and F was burned to produce 0.6368 g CO2 and 0.1303 g H2O. Calculate the
1. 1 answer
2. 386 views
Is this correct?A 0.7473 g sample of a compound containing C, H, and O was burned to produce 1.909 g CO2 and 0.7813 g H2O.
1. 1 answer
2. 406 views
Can an electric force between two point charges be negative?
1. 5 answers
2. 420 views
3 charges are arranged along the x-axis.q1 = -4.50 nC is located at x = 0.200m q2 = +2.50 nC is located at x = -0.300m q3 = is a
1. 0 answers
2. 1,306 views
If a sample of C6H4(CH3)2 is found to contain 3.54 * 10^26 CH3 groups how many moles of C6H4(CH3)2 molecules are present?C6H4(CH
1. 1 answer
2. 434 views
If a sample of Co2(CO)8 is found to contain 6*10^-2 mol of C atoms, how many grams of Co atoms are present?Molar Mass (g/mol)
1. 3 answers
2. 709 views
The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the
1. 1 answer
2. 540 views
A whistle of frequency 490 Hz moves in a circle of radius 2.00 ft at an angular speed of 15.0 rad/s. What are the lowest and the
1. 0 answers
2. 870 views
A whistle of frequency 490 Hz moves in a circle of radius 2.00 ft at an angular speed of 15.0 rad/s. What are the lowest and the
1. 0 answers
2. 421 views
The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the
1. 1 answer
2. 581 views
A monatomic ideal gas with a pressure of 1.39x10^5 Pa and has a volume change of 260 L to a volume of 39.0 L. the second
1. 0 answers
2. 459 views
A string along which waves can travel is 2.50 m long and has a mass of 203 g. The tension in the string is 26.0 N. What must be
1. 2 answers
2. 671 views
what are two different word phrases for the expression t/30 ?
1. 16 answers
2. 2,948 views
A 171-N child sits on a light swing and is pulled back and held with a horizontal force of 73.5N. The magnitude of the tension
1. 5 answers
2. 719 views
A sinusoidal wave is traveling on a string with speed 30.00 cm/s. The displacement of the particles of the string at x = 15 cm
1. 1 answer
2. 852 views
A string vibrates according to the equationy' = (0.30 cm) sin[(π/3 cm-1)x] cos[(55π s-1)t] What is the speed of a particle of
1. 3 answers
2. 498 views
The equation of a transverse wave traveling along a very long string is given by y = 5.2 sin(0.013π|x + 4.7π|t), where x and y
1. 1 answer
2. 896 views
A string fixed at both ends is 8.71 m long and has a mass of 0.119 kg. It is subjected to a tension of 92.0 N and set
1. 1 answer
2. 604 views
A string fixed at both ends is 8.71 m long and has a mass of 0.119 kg. It is subjected to a tension of 92.0 N and set
1. 2 answers
2. 567 views
A wire 13.0 m long and having a mass of 80 g is stretched under a tension of 205 N. If two pulses, separated in time by 30.0 ms,
1. 0 answers
2. 486 views
Vibrations from a 650 Hz tuning fork sets up standing waves in a string clamped at both ends. The wave speed for the string is
1. 1 answer
2. 670 views
I have being trying to look up as to who invented the order of operations. Please help me.
1. 5 answers
2. 530 views
Write each percent as a decimal and as a fraction in simplest form.5/8% would be .625% how do I make 5/8% into a fraction, or do
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2. 664 views
An Olympic bobsledder pushes a 200 kg bobsled at 8 m/s. If the man pushes with a force of 1200 N, how much force of friction is
1. 1 answer
2. 781 views
I have to write a Haiku with has to do with Science, please let me know if this is good.Science is great fun you get to use
1. 1 answer
2. 631 views
Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening
1. 3 answers
2. 1,743 views
What is an approximate value of the length of a 30 nm fiber that contains 120,000 nucleotide pairs of DNA?
1. 1 answer
2. 462 views
Yolanda and Yoko ran in a 100 yd dash. When Yolanda crossed the finish line, Yoko was 10 yd behind her. The girls then repeated
1. 1 answer
2. 521 views
At 7.65 cents per kilowatt-hour, what does it cost to operate a 8.00 hp motor for 7.00 hr?
1. 1 answer
2. 504 views
A rescue helicopter drops a crate of supplies from a height of 160 feet. After t seconds, the crate is 160 - 16t^2 feet above
1. 1 answer
2. 760 views
<b>If you drop a 1.0 kg weight from a height of 1.0 m, how many joules of kinetic energy will it have when it reaches the
1. 2 answers
2. 1,498 views
You find it takes 230 N of horizontal force to move an unloaded pickup truck along a level road at a speed of 2.4 m/s. You then
1. 1 answer
2. 1,426 views
The homothetic geometry on C is (C,H) where H is the group of scaling of C. Which figures are congruent in (C,H) to the circle
1. 0 answers
2. 558 views
I have to finish a Paragraph about some event in the past and how I now reflect on it (have to use Präsens, Präteritum und
1. 1 answer
2. 549 views
A rubber ball dropped from a height of exactly 5 ft bounces (hits the floor) several times, losing 10% of its kinetic energy
1. 0 answers
2. 1,271 views
A man stands on the roof of a 15m tall building and throws a rock with a velocity of magnitude 30m/s at an angle of 33deg above
1. 5 answers
2. 12,204 views
A man stands on the roof of a 15m tall building and throws a rock with a velocity of magnitude 30m/s at an angle of 33deg above
1. 2 answers
2. 880 views
Superman throws a boulder of weight 3500 N at an adversary. What horizontal force must Superman apply to the boulder to give it
1. 2 answers
2. 602 views
A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed at an angle of 54° above the horizontal. The end of the
1. 1 answer
2. 1,020 views
Is fish considered a livestock in Texas?
1. 2 answers
2. 380 views
Suppose that a NASCAR race car is moving to the right with a constant velocity of +92 m/s. What is the average acceleration of
1. 1 answer
2. 2,302 views
A helicopter is lifting off from the ground and is moving vertically upward. The graph shows its vertical velocity vy versus
1. 3 answers
2. 2,004 views
The school play sold 498 tickets. Students paid $3.50 each, while non-students paid $5.50 each. If a total of $2121.00 was
1. 1 answer
2. 512 views
<b>A contractor requires a cement mix that is 70% sand and 30% cement.He has 700 kg of a cement mix that is 80% sand and 20%
1. 1 answer
2. 1,228 views
<b>A ball is thrown straight up in the air and passes a window 0.30s after being released. It takes 1.5s to go from the window
1. 2 answers
2. 3,070 views
Two employees are painting wall. A takes twice as long as B to paint the same area. During a typical 8-hour day, A works the
1. 3 answers
2. 1,207 views
<b>For no apparent reason, a poodle is running at a constant speed of 5.80 m/s in a circle with radius 2.3 m.For t_delta = 0.5 s
1. 8 answers
2. 2,269 views
In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going 43.8 m/s, to his enemy's car,
1. 5 answers
2. 2,461 views
A baseball is hit with a speed of 27.0 m/s at an angle of 42.0 deg. It lands on the flat roof of a 10.0 m-tall nearby building.I
1. 1 answer
2. 3,229 views
You are given 73 mL of CO2 at 0.69 atm. What volume (in mL) would the CO2 occupy at 0.67 atm if the temperature is maintained at
1. 1 answer
2. 325 views
What mass (in grams)of KNO3 would have to be decomposed to produce 29 L of oxygen measured at STP?
1. 1 answer
2. 892 views
A 400.0-m-wide river flows from west to east at 30.0 m/min. Your boat moves at 100.0 m/min relative to the water no matter which
1. 1 answer
2. 2,567 views
A 400.0-m-wide river flows from west to east at 30.0 m/min. Your boat moves at 100.0 m/min relative to the water no matter which
1. 0 answers
2. 1,041 views
An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.00 s. It then turns left 30.0
1. 4 answers
2. 1,521 views
An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.00 s. It then turns left 30.0
1. 1 answer
2. 1,084 views
How many milliliters of a 2.5 hydrochloric acid solution would be needed to react completely with 32.0 grams of magnesium metal
1. 1 answer
2. 775 views
Can someone explain to me what happens when you take a slap shot in hockey according to conservation of energy? I think that
1. 0 answers
2. 1,023 views
A 0.400 gram sample of white powder contains 0.141 of potassium, 0.115 grams of sulfur, and 0.144 grams of oxygen. what is the
1. 3 answers
2. 1,448 views
A 55 kg skier is going down a slope with an angle of 47 degrees. Mk= 0.15. How fast is he going after 6 seconds?
1. 0 answers
2. 950 views
A 200N sign hangs and makes a 15.5 angle with the horizontal. What is the Tension in each rope?
1. 0 answers
2. 395 views
What is the value of 3/14 rounded to the nearest fourth?
1. 2 answers
2. 506 views
The velocity of a diver just before hitting the water is -8.4 m/s, where the minus sign indicates that her motion is directly
1. 0 answers
2. 1,001 views
the problem is 7/10 x 30 = how do you convert and get the answer
1. 2 answers
2. 340 views
write the correct formula for the compound listed below:1. Silver Oxide my answer: AgIIO correct?
1. 3 answers
2. 683 views
can feelings be personified or is it more a projection?i am writing an essay on Life of Pi and i would like to say that Richard
1. 2 answers
2. 838 views

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