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Elizabeth
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the highest pressure ever produced in a laboratory setting was about 2000000 atm. if we have a .000010 liter sample of a gas at
1 answer
869 views
synthetic diamonds can be manufactured at pressures of 60000 atm. if we took 2.00 liters of gas at 1.00 atm and compressed it to
0 answers
846 views
in a thermonuclear device, the pressure of 0.050 liters of gas within the bomb casing reaches 4000000 atm. when the bomb casing
0 answers
557 views
1.00 L of a gas at standard temperature and pressure is compressed to 473 ML. what is the new pressure of the gas?
3 answers
18,157 views
Deshawn built a model train car. The length of the model train car is 6 in. The scale Deshawn used to build the model train car
2 answers
737 views
How many moles of CaCl2 are produced when this reaction is started with 4.70 grams of chlorine gas?
3 answers
526 views
If 5.0 grams of Zinc were added to 35.0 grams of H2SO4, how many grams of hydrogen gas would be evolved?
2 answers
464 views
What parts of speech are the words "take possession" is this a verb phrase? Is take a "helping verb" here?
1 answer
453 views
At 298K and 1 atm, a 0.5 mol sample of O2 and a separate 0.75 mol sample of CO2 gas have the same:
A. mass B. density C. average
0 answers
858 views
Equal masses of Ne and Ar are placed in a rigid, sealed container. If the total pressure in the container is 1.2 atm, what is
2 answers
1,694 views
Emory tosses a nickle four times. The probability that he gets at least as many heads as tails is? Explain
0 answers
451 views
A coin is loaded in such way that a tail is three times as likely to occur as a head. If the coin is flipped twice. Find the
1 answer
1,302 views
Twenty marbles are in a bag. There are 5 green marbles, 9 blue marbles, and the rest are red. Two marbles are drawn at random
1 answer
766 views
A coin is loaded in such way that a tail is three times as likely to occur as a head. If the coin is flipped twice. Find the
0 answers
572 views
Twenty marbles are in a bag. There are 5 green marbles, 9 blue marbles, and the rest are red. Two marbles are drawn at random
0 answers
647 views
Assume that 3 dice are thrown simultaneously. What is the probability that exactly one 4 will come up?
1 answer
995 views
" kelly has twelve cards numbered 1 to 12. what is the probability of picking three even-numbered cards consecutively, if the
7 answers
1,417 views
You repeatedly toss a fair coin for 5 times. What is the probability that heads comes up at least 3 times before tails comes up
1 answer
594 views
Emory tosses a nickle four times. The probability that he gets at least as many heads as tails is? Explain
0 answers
514 views
Assume that 3 dice are thrown simultaneously. What is the probability that exactly one 4 will come up?
1 answer
639 views
Twenty marbles are in a bag. There are 5 green marbles, 9 blue marbles, and the rest are red. Two marbles are drawn at random
0 answers
596 views
A coin is loaded in such way that a tail is three times as likely to occur as a head. If the coin is flipped twice. Find the
0 answers
560 views
Two sentences:
1) The race among the three relay teams was close; none of the three; however, is giving up hope of winning. 2)
1 answer
1,302 views
Aaron has two types do iodine in his lab. He has brand 213 iodine, which costs 36 cents per ounce. He also has brand 856 iodine,
1 answer
1,613 views
I need to make each statement into a question using the interrogative words. Can someone revise the questions
Adónde Cuándo
6 answers
7,655 views
We are doing improper fractions and they are talking about the Tee-pee method ,what is it
1 answer
538 views
At t=0 a particle starts from rest at x=0, y=0 and moves in the xy plane with an acceleration a=(4.0i+3.0j)m/s^2. Determine (a)
2 answers
2,502 views
a chemist needs 2.00 grams of a liquid compound witha density of 0.785 g/cm^3 density. what volume of compund is required?
1 answer
670 views
a chemist needs 2.00 grams of a liquid compound witha density of 0.785 g/cm^3 density. what volume of compund is required?
1 answer
470 views
If the distance from the top of a building to the tip of its shadow is 150 feet and the sun makes a 75 degree angle with the
1 answer
1,710 views
Passed in 1935, Roosevelt's most significant reform measure was the
1 answer
444 views
LeAnn is a carpet layer. She has agreed to carpet a house for $18 per square yard. The carpet will cost her $11 per square yard,
4 answers
564 views
What is the greatest number of points of intersection with three circles that have 6 intersections using four straight lines?
0 answers
381 views
Two converging lenses are separated by 23.60 cm. The focal length of each lens is 12.60 cm. An object is placed 35.80 cm to the
0 answers
559 views
An object is placed 19.6 cm to the left of a diverging lens (f = -7.84 cm). A concave mirror (f = 11.2 cm) is placed 27.3 cm to
0 answers
575 views
Solve the equation. Leave answer in simplest radical form.
n^2-2n+1=5
1 answer
899 views
A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +3.0. What is the
2 answers
1,221 views
Identical objects are located at the same distance from two spherical mirrors, A and B. The magnifications produced by the
0 answers
779 views
A baseball player hits a baseball into the air with an initial vertical velocity of 48 feet per second from a
height of 3 feet.
1 answer
3,076 views
The power radiated by the sun is 3.90 1026 W. The earth orbits the sun in a nearly circular orbit of radius 1.50 1011 m. The
1 answer
2,164 views
A stationary particle of charge q = 1.4 10-8 C is placed in a laser beam (an electromagnetic wave) whose intensity is 3.5 103
1 answer
654 views
A beam of polarized light with an average intensity of 17.1 W/m2 is sent through a polarizer. The transmission axis makes an
1 answer
845 views
A series circuit contains only a resistor and an inductor. The voltage V of the generator is fixed. If R = 10 Ω and L = 4.2 mH,
1 answer
485 views
In the absence of a nearby metal object, the two inductances (LA and LB) in a heterodyne metal detector are the same, and the
2 answers
651 views
A series RCL circuit has a resonant frequency of 1530 Hz. When operating at a frequency other than 1530 Hz, the circuit has a
0 answers
605 views
Suppose that the light bulb in the figure is a 61.8-W bulb with a resistance of 218 Ω. The magnetic field has a magnitude of
0 answers
576 views
The number of moles NaOH needed to reach the equivalence point is
mol, which means we must add liters of NaOH. The total volume
1 answer
606 views
at a pressure of 390.0 kPa, a sample of ideal gas containing 110. moles of propane is collected at a tempature of 55 degrees
1 answer
454 views
at a pressure of 390.0 kPa, a sample of ideal gas containing 110. moles of propane is collected at a tempature of 55 degrees
0 answers
464 views
A particle of mass 6.80 10-8 kg and charge 4.4-µC is traveling due east. It enters perpendicularly a magnetic field whose
0 answers
711 views
Two resistances, R1 and R2, are connected in series across a 15-V battery. The current increases by 0.050 A when R2 is removed,
1 answer
1,503 views
A cylindrical aluminum pipe of length 1.52 m has an inner radius of 2.20 10-3 m and an outer radius of 3.00 10-3 m. The interior
0 answers
1,247 views
Two equipotential surfaces surround a +1.63 10-8-C point charge. How far is the 204-V surface from the 81.5-V surface?
Answer in
0 answers
512 views
Two particles, with identical positive charges and a separation of 2.65 10-2 m, are released from rest. Immediately after the
0 answers
522 views
Two charges are placed on the x axis. One of the charges (q1 = +9.3 µC) is at x1 = +3.4 cm and the other (q2 = -20 µC) is at
0 answers
1,105 views
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is
0 answers
834 views
A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A
0 answers
603 views
Two particles, with identical positive charges and a separation of 2.65 10-2 m, are released from rest. Immediately after the
0 answers
520 views
Four identical metallic objects carry the following charges: +7.0 µC, +9.0 µC, -4.6 µC, and -1.2 µC. The objects are brought
2 answers
1,284 views
A chauffer must decide between driving his clients in the rolls royce or the mercedes benz. the rolls royce costs 1.75 per mile
0 answers
624 views
Price: 172.00 tax rate 11%
1 answer
325 views
Rita has 88 feet of fencing. She wants to use this fencing to enclose a rectangular area of 480 square feet. What must the
1 answer
725 views
A ferris wheel is 30 meters in diameter and boarded in the six o'clock position from a platform that is 10 meters above the
2 answers
9,043 views
A motorist makes a journey of 240 km from Singapore to Malacca to visit his inlaws at an average speed of x kilometers.
On his
6 answers
1,611 views
A 0.63-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.13 to 0.22 m (relative to its
1 answer
2,811 views
A small ball is attached to one end of a spring that has an unstrained length of 0.202 m. The spring is held by the other end,
0 answers
1,155 views
A 15.0-kg block rests on a horizontal table and is attached to one end of a massless, horizontal spring. By pulling horizontally
1 answer
2,675 views
A copper rod (length = 1.3 m, radius = 3.70 10-3 m) hangs down from the ceiling. A 8.3-kg object is attached to the lower end of
0 answers
626 views
A bungee jumper, whose mass is 81 kg, jumps from a tall platform. After reaching his lowest point, he continues to oscillate up
0 answers
708 views
A loudspeaker diaphragm is producing a sound for 2.0 s by moving back and forth in a simple harmonic motion. The angular
0 answers
864 views
A tow truck is pulling a car out of a ditch by means of a steel cable that is 9.3 m long and has a radius of 0.50 cm. When the
1 answer
3,017 views
A 0.56-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.13 to 0.26 m (relative to its
0 answers
742 views
A 15.0-kg block rests on a horizontal table and is attached to one end of a massless, horizontal spring. By pulling horizontally
0 answers
657 views
A small ball is attached to one end of a spring that has an unstrained length of 0.202 m. The spring is held by the other end,
1 answer
1,695 views
What is the chemical breakdown of a cheese pizza
1 answer
559 views
This soidum hydroxide solution was then used to determine the amount of acetic acid in vinegar. Three titrations of the sodium
1 answer
625 views
What is a great thesis statement for how supply and demand affects urbanization
2 answers
562 views
Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.8 kg · m2 and an angular velocity of +6.7
0 answers
994 views
A 13.6-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of the reel is 0.40 kg · m2,
0 answers
709 views
A 13.6-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of the reel is 0.40 kg · m2,
0 answers
645 views
Workers have loaded a delivery truck in such a way that its center of gravity is only slightly forward of the rear axle, as
1 answer
1,820 views
A rotational axis is directed perpendicular to the plane of a square and is located as shown in the drawing. Two forces, 1 and
0 answers
1,253 views
A square, 0.36 m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. The
0 answers
796 views
The wheel of a car has a radius of 0.390 m. The engine of the car applies a torque of 282 N · m to this wheel, which does not
0 answers
827 views
8/2+√6
1 answer
268 views
I don't know exactly how to start this question:
A sample gas contains 2.95 x 10e24 molecules. The sample is 21.0% oxygen.
3 answers
613 views
A 43.0 g sample of hydrated cobalt (II) sulfite is heated to drive off the water. The anhydrous cobalt (II) sulfite has a mass
4 answers
2,015 views
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total
1 answer
1,046 views
John's mass is 92 kg, and Barbara's is 67 kg. He is standing on the x axis at xJ = +7.50 m, while she is standing on the x axis
0 answers
632 views
A girl is skipping stones across a lake. One of the stones accidentally ricochets off a toy boat that is initially at rest in
2 answers
1,929 views
By accident, a large plate is dropped and breaks into three pieces. The pieces fly apart parallel to the floor, with v1 = 2.75
0 answers
1,124 views
A 0.014 kg bullet is fired straight up at a falling wooden block that has a mass of 4.0 kg. The bullet has a speed of 760 m/s
0 answers
721 views
The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun,
0 answers
490 views
A 42.4-kg boy, riding a 2.29-kg skateboard at a velocity of +5.37 m/s across a level sidewalk, jumps forward to leap over a
0 answers
598 views
In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer space. From stationary positions they push
1 answer
1,319 views
A volleyball is spiked so that its incoming velocity of +3.6 m/s is changed to an outgoing velocity of -16 m/s. The mass of the
2 answers
1,895 views
Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram
3 answers
3,837 views
The cheetah is one of the fastest-accelerating animals, because it can go from rest to 18.2 m/s (about 41 mi/h) in 2.7 s. If its
1 answer
6,062 views
A semitrailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway-truck ramp
1 answer
795 views
The model airplane in figure below is flying at a speed of 21 m/s on a horizontal circle of radius 18 m. The mass of the plane
2 answers
905 views
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