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Kyle

Questions and answers by Kyle, page 3

Questions (559)

Superman throws a boulder of weight 3500 N at an adversary. What horizontal force must Superman apply to the boulder to give it
1. 3 answers
2. 534 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. 4 answers
2. 799 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. 7 answers
2. 12,073 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. 1 answer
2. 1,206 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. 487 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. 1 answer
2. 487 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. 2 answers
2. 1,339 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. 4 answers
2. 1,416 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. 2 answers
2. 694 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. 432 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. 453 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. 414 views
Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening
1. 4 answers
2. 1,668 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. 2 answers
2. 574 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. 2 answers
2. 728 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
1. 2 answers
2. 592 views
I have being trying to look up as to who invented the order of operations. Please help me.
1. 6 answers
2. 482 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. 2 answers
2. 599 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. 1 answer
2. 428 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. 3 answers
2. 500 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. 535 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. 2 answers
2. 813 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. 4 answers
2. 452 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. 2 answers
2. 762 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. 6 answers
2. 637 views
what are two different word phrases for the expression t/30 ?
1. 16 answers
2. 2,833 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. 4 answers
2. 587 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. 1 answer
2. 394 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. 2 answers
2. 493 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. 1 answer
2. 366 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. 1 answer
2. 828 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. 466 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. 4 answers
2. 609 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. 380 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. 1 answer
2. 1,219 views
Can an electric force between two point charges be negative?
1. 6 answers
2. 349 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. 346 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. 340 views
Based on the balanced equation2NBr3 + 3NaOH → N2 + 3NaBr + 3HOBr calculate the number of of excess reagent units remaining
1. 3 answers
2. 1,534 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. 1 answer
2. 910 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. 4 answers
2. 1,030 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. 2 answers
2. 534 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. 3 answers
2. 564 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. 351 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. 321 views
Consider the following reaction.2KClO3(s) �¨ 2KCl(s) + 3O2(g) A)How many grams of KCl are produced from the complete reaction
1. 3 answers
2. 925 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. 441 views
Calculate the OH - concentration present in water under the following conditions. Enter your answer in scientific notation.A)[H3
1. 2 answers
2. 706 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. 478 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
1. 1 answer
2. 1,037 views
Solve the systemx^2+y^2-4x+2y=20 4x +3y =5
1. 1 answer
2. 362 views
Solve and simplify(3+9i)-(12-5i) 8+6i/7-5i
1. 3 answers
2. 401 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. 7 answers
2. 2,780 views
Compute9(sub)C(sub)6
1. 2 answers
2. 866 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. 1,054 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. 4 answers
2. 2,139 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. 519 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. 4 answers
2. 1,750 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. 377 views
How are radioisotopes used to make biochemical reactions?
1. 1 answer
2. 353 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. 381 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. 7 answers
2. 417 views
Explain in words, how you would solve:3(n-8) = 12 + 2n
1. 1 answer
2. 264 views
I have a hard time getting this someone help me?Astronauts often use the unit light year to express intergalactic distances. If
1. 3 answers
2. 765 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. 2 answers
2. 574 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. 2 answers
2. 686 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. 5 answers
2. 3,119 views
u-2√u=3. what is u?
1. 2 answers
2. 604 views
1/1024=42*0.5^(t/12.5)Solve for t. Please show work. Much appreciated!
1. 4 answers
2. 380 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. 3 answers
2. 439 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. 3 answers
2. 1,712 views
Simplify exactlylog_2 1/16
1. 1 answer
2. 341 views
"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. 369 views
write an algebraic expression then evaluate, given n=25 less than the quotient of -10 and a number is the answer (-10 / 2) - 5 =
1. 1 answer
2. 449 views
"You will measure the tension T, the mass m, and the length L of your spring.In terms of these variables, what is the expected
1. 4 answers
2. 1,120 views
A five feet piece of wire is cut into two pieces. One Piece is bent into a square and the other is bent into an equilateral
1. 2 answers
2. 535 views
A charge Q = +4.5 uC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge
1. 5 answers
2. 1,534 views
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only
1. 4 answers
2. 9,601 views
During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 148-g baseball crashing through the pane of
1. 4 answers
2. 1,998 views
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.430 kg
1. 2 answers
2. 599 views
An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.29 m/s. The car passes under a loading
1. 4 answers
2. 2,449 views
In a very busy off-campus eatery one chef sends a 241-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter
1. 1 answer
2. 416 views
During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 148-g baseball crashing through the pane of
1. 1 answer
2. 497 views
In a very busy off-campus eatery one chef sends a 241-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter
1. 3 answers
2. 1,944 views
These two equations concern a lab on the measurement of E/M by the Brainbridge Method.I need to derive the absolute error for
1. 2 answers
2. 499 views
Find the rule for each function tablem n 15 12 10 8 5 4 0 0
1. 1 answer
2. 329 views
Find the rule for the function tablem n 15 12 10 8 5 4 0 0
1. 4 answers
2. 346 views
could you pls check my math6< s +7 -1<s -8.7<y + (-12.4) 21.1<y x + 17 > 10 -7 > x 11 > j + (-19) 30>j 24.3 > g- (-14.4) 38.7> g
1. 1 answer
2. 423 views
How do you integrate:1/(x^2-1) dx ?
1. 3 answers
2. 332 views
How do you simplify:5*e^(-10x) - 3*e^(-20x) = 2 I'm not sure if I can take natural log of both sides to bring down the
1. 1 answer
2. 311 views
The atomic number of an electrically neutral atom is equal to the number of:Choose all that apply. Neutrons Electrons Protons I
1. 6 answers
2. 3,210 views
Calculate the radius of a vanadium atom, given that V has a BCC crystal structure, a density of 5.96 g/cm3, and an atomic weight
1. 2 answers
2. 1,628 views
Calculate the radius of a vanadium atom, given that V has a BCC crystal structure, a density of 5.96 g/cm3, and an atomic weight
1. 3 answers
2. 7,225 views
A nickel is flipped and a dime is flipped.1. What is the probability of obtaining exactly one head? A bag contains five balls
1. 4 answers
2. 754 views
A nickel is flipped and a dime is flipped.1. What is the probability of obtaining exactly one head? A bag contains five balls
1. 1 answer
2. 470 views
A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, and a twenty-dollar bill. Two bills are chosen in
1. 4 answers
2. 1,913 views
Scott can travel from Rochester, N.Y., to New York City by bus, train, car, or airplane. He can travel from New York to London,
1. 1 answer
2. 389 views
A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, and a twenty-dollar bill. Two bills are chosen in
1. 2 answers
2. 700 views
An aluminum ring of radius 5.00 cm and resistance 2.00 10-4 Ω is placed around the top of a long air-core solenoid with 997
1. 4 answers
2. 3,212 views
Use intermediate value theorem to show there is a root to 2x^3 + x^2 - 2 = 0 on [0,1]
1. 2 answers
2. 1,078 views

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