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ami
Questions and answers by visitors named
ami
Questions (151)
was wondering if someone could look over these sentences and see if they make sense.
en el verano, nosotros fuimos en el
3 answers
397 views
how do you say
"the trip was a very great experience."
3 answers
377 views
how do you solve for a problem where they ask you to identify an unknown salt (they give you three choices) when you are given
1 answer
402 views
20ml sample of .200M HBr is titrated w/ .200M NaOH. what is the ph after adding 15ml (base)?
2 answers
653 views
At what displacement from the equilibrium is the total energy of a simple harmonic oscillator one - sixths KE and five - sixth
2 answers
580 views
Sam is taking his girlfriend Sally out for a ride in his boat. He starts out at rest. He accelerates with an acceleration of
3 answers
539 views
Consider an antelope being chased by a tiger. The antelope is running at a velocity of 5.21 m/s at an angle 14.3 degree E of S.
4 answers
1,130 views
A disk rolls down a slope. It rotational axis is its center of mass. It is rotation at a constant angular speed making 34.0 full
1 answer
709 views
A prep cook spins a salad spinner 25.0 times in 10.0 seconds (at a constant rate) and then stops. The salad spinner rotates 8.00
2 answers
616 views
Water flows steadily from an open tank into a pipe as shown in the figure. The elevation of the top of the tank is 12.3 m, and
4 answers
1,733 views
A satellite orbits around the earth. The mass of the satellite is 1170 kg, and its altitude is 220 km. The mass of the earth is
4 answers
1,349 views
What is the importance of Alice walker, "You cannot keep a good women down" story in between 1865 to present day.
1 answer
398 views
PCl3 + Cl2 = PCl5 Kc=26 @ 250 degree Celcius
1.0 mol of PCl3 , 1.0 mol of Cl2 , and 5.0 mol of PCl5 are placed in a 10.0L flask
3 answers
681 views
Consider the equilibrium of water with gaseous hydrogen and oxygen:
Give the value of for this reaction, if it is written as:
4 answers
449 views
When solid NH4HS is placed in a closed flask at 28 C, the solid dissociates according to the equation:
NH4HS(s) <=> NH3(g) +
3 answers
1,767 views
Consider the following equilibrium:
5.0 moles of are placed in a 10.0 L flask at 200 C and allowed to come to equilibrium.
5 answers
776 views
solve the equation:
arccosx+arccos2x=arccos1/2
1 answer
316 views
What is the pH of the solution obtained by mixing 30.00mL OF 0.250M HCL AND 30.00mL OF 0.125M NaOH?
3 answers
2,361 views
Calculate the PH OF A SOLUTION prepared by mixing 15.0mL OF 0.50 M OF NaOH AND 30.0mL OF 0.50 M BENZOIC ACID SOLUTION?(
3 answers
840 views
two number have a sum equal to 50. their difference is 16. to figure out what the number are, you must first identify the
6 answers
345 views
calculate the van dar waals coorectionj terms to pressure and volume for Cl2 at STP. The values of the van der waals constant a
2 answers
490 views
Simplify: 3 sqrt () 2 + 5 sqrt () 2
a) 8 sqrt () 2 b) 15 sqrt () 2 c) 16 d) 16 sqrt () 2
1 answer
376 views
simplify sqrt 17/ 4
1 answer
330 views
sqrt () 13/49 or �ã 13/49
1 answer
263 views
When change is brought about through movements such as the Civil Rights Movement and the Women's Suffrage movement, movements
2 answers
600 views
Which of the following is NOT a question that a social conflict theorist would ask in studying a situation?
Choose one answer. a.
2 answers
843 views
.Question 26
Marks: 2 ____________ is an example of non-material culture, and __________ is an example of material culture.
3 answers
637 views
Two roommates argue about who is doing the dishes. One is angry because the other didn't do the dishes Friday night as they
2 answers
559 views
simplify: sqrt () 81 / 2
1 answer
280 views
help please!!!!!!!!!!!!!
simplify: sqrt () 36 / 81
2 answers
658 views
simplify: sqrt (2)/7
a) sqrt (14) / 7 b) sqrt (7) C) 2 d) sqrt (2)
1 answer
383 views
simplify the following radical expression: 3 sqrt (-27)
a) 0 b) -3 c) 3 d) no solution exists
3 answers
482 views
simplify: sqrt (16)/sqrt (4) + sqrt (2)
a) 8 - 2 sqrt (2) b) 8 - sqrt (2) / 2 c) 2 d) 4 - 2 sqrt (2)
4 answers
551 views
what is ph of a solution made by mixing 55ml of 0.12M in Formaic acid and 65ml of 0.12M of Sodium Foramte? For Ka of Formaic
1 answer
299 views
The molar solubility of PbBr2 at 250C is 1.0x10^-2. Calculate the Ksp.
2 answers
815 views
If 0.0490g of AgIO3 DISOLVES per liter of solution, calculate the solubility product constant.
5 answers
4,325 views
Calculate the solubility of Cu(oh)2 in grams per liters of solution if Ksp for Cu(OH)2 IS 4.8X 10^-20
3 answers
619 views
napoleon russian campaign has been a disaster why? Describe the campaign what happened and the consequences for the french army
1 answer
419 views
Whst steps did louis XIV to consolidate his power as the absolute monarh of France?
2 answers
593 views
trace the course of french revolution from calling estates general to creation of national assembly? why estate general called
1 answer
424 views
why did karl marx believe capitalism would eventually be destroy? What steps would lead to overthrow and what kind of society
2 answers
560 views
explain darwin theory of evolution. how it was applied to economic races and nation by social Darwinist?
2 answers
791 views
1933 hitler begins to rearm Germany what future steps did he take between 1933 and 1939 invasion of poland that lead to war?
1 answer
390 views
in august 1945 the US dropped the atomic bomb on japan what are the justification for and aganist dropping the bomb?
2 answers
685 views
what were the Hitlers goal for germany when he come to power and how did they lead to World War 2?
1 answer
454 views
discuss in details the truman doctrine, the berlin airlift, and the marshall plan confrontation between US and Soviet union
4 answers
548 views
vector B has a magnitude of 186. By is 0. What are the two possibilities for Bx?
1 answer
317 views
VECTOR A has a magnitude of 55. Ax is 26. What are the two possibilities for Ay?
3 answers
338 views
The components of a vector V can be written (Vx, Vy, Vz).
What are the components and length of a vector which is the sum of the
5 answers
5,748 views
What must be true for two vectors to add up to ZERO? Choose all that apply.
1)Their y-components must be equal. 2)They must be
6 answers
904 views
Vector V1 is 9.00 units long and points along the negative x axis. Vector V2 is 4.72 units long and points at +50.0° to the +x
3 answers
812 views
Express the direction 331° CW from the +x-axis in the following different ways. For this problem north is positive y and east
1 answer
480 views
what assumption have you made in performing the free fall lab experiment and analyyzing the results?
1 answer
469 views
A horse canters away from its trainer in a straight line, moving 140 m away in 16.0 s. It then turns abruptly and gallops
2 answers
497 views
A stone is dropped from the top of a cliff. It hits the ground below after 3.10 s. How high is the cliff?
4 answers
1,438 views
A baseball is hit nearly straight up into the air with a speed of 24 m/s.
(a) How high does it go? (b) How long is it in the air?
2 answers
1,115 views
A helicopter is ascending vertically with a speed of 5.50 m/s. At a height of 155 m above the Earth, a package is dropped from a
2 answers
571 views
A horse canters away from its trainer in a straight line, moving 140 m away in 16.0 s. It then turns abruptly and gallops
2 answers
838 views
how modern religion benefits from indigenous religion?
2 answers
805 views
Explain whether or not my results 9.876m/s^2 verify that g=9.8m/s^2
1 answer
272 views
An engineer of a passenger train traveling at 25.0 m/s sights a freight train whose caboose is 200m ahead on the same track. The
1 answer
1,123 views
at what projection will the range of a projectile equal to 2 times its maximum height?
3 answers
416 views
A boat can travel 2.60 m/s in still water.If the boat points its prow directly across a stream whose current is 1.10 m/s, what
3 answers
1,301 views
At what projection angle will the range of a projectile equal to 3 times its maximum height?
4 answers
1,440 views
A rock is thrown from the roof of a building with a velocity v at an angle of alpha from the horizontal. The building has height
1 answer
500 views
i need help in writing newton second law lab. we did three experiment, first we constant mass, then acceleration and then force.
1 answer
399 views
Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 4-46. The sum of the forces A
2 answers
887 views
The coefficient of static friction between hard rubber and normal street pavement is about 0.68. On how steep a hill (maximum
4 answers
2,284 views
Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is
2 answers
670 views
Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is
3 answers
819 views
The position of a 2.75 *10^5 N training helicopter under test is given by
r = (0.020 m/s^3)(t^3)i + (2.2 m/s)(t)j - (0.060
4 answers
1,715 views
Two objects attract each other gravitationally with a force of 3.5 10-10 N when they are 0.33 m apart. Their total mass is 4.0
1 answer
423 views
What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth
2 answers
1,209 views
is that true or false A rock is thrown straight up into the air At the peak its acceleration was zero
3 answers
749 views
is the net force on venus is zero?
1 answer
371 views
is that true faster objects have a greater acceleration than slower objects?
1 answer
351 views
is that true a block on a flat surface. The normal force on the block and weight of the block make up a third law pair.
2 answers
520 views
Determine the radial acceleration of the car at this time.
If the curve were flat, what would the coefficient of static friction
2 answers
493 views
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 340 km/h in a semicircular arc with a
2 answers
749 views
Is that true the net force on the exit sign is 25N
1 answer
375 views
Why gravitional force and centrietal force is same between earth and moon?
1 answer
320 views
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 340 km/h in a semicircular arc with a
1 answer
649 views
Two objects attract each other gravitationally with a force of 3.5 10-10 N when they are 0.33 m apart. Their total mass is 4.0
2 answers
1,027 views
A bowling ball weighing 71.8 N is attached to the ceiling by a rope of length 3.83 m. The ball is pulled to one side and
2 answers
1,339 views
Find the center of mass of the three mass system given that m1 1.90 kg and m2 1.30 kg Specify relative to the center of the left
1 answer
381 views
A block of ice of mass 4.10 kg is placed against a horizontal spring that has force constant k = 210 N/m and is compressed a
7 answers
6,360 views
Find the center of mass of the three mass system that m1 = 1.90 kg and m2 = 1.30 kg. Specify relative to the center of the left
1 answer
470 views
A ball of mass 0.540 kg moving east (+x direction) with a speed of 3.30 m/s collides head-on with a 0.740 kg ball at rest. If
4 answers
1,180 views
A 175 kg horizontal beam is supported at each end. A 300 kg piano rests a third of the way from one end.
What is the vertical
2 answers
698 views
A 12N force is applied to a 20kg door If a frictional torque is present what will be the angular acceleration of the door The
4 answers
500 views
a 25 kg rod has a box hanging from it and is suspended from the ceiling by the string. The entire system isin equilibrium.
4 answers
523 views
does the mass of the object have a direct effect on the buoyant force or does the volume? Which of the two has no affect on the
1 answer
438 views
A pendulum has a period of 0.75 s on Earth. What is its period on a planet where the acceleration of gravity is about 0.41 that
1 answer
421 views
An ordinary glass is filled to the brim with 350.0 mL of water at 100°C. If the temperature decreased to 19°C, how much water
2 answers
1,217 views
What mass of steam at 100°C must be added to 1.00 kg of ice at 0°C to yield liquid water at 15°C?
3 answers
2,058 views
A cube of ice is taken from the freezer at -7.5°C and placed in a 101 g aluminum calorimeter filled with 282 g of water at room
3 answers
866 views
A 10 kg block slides up a hill to a height of 5.8 m. If 414 J of thermal energy are generated, how fast was the block going at
2 answers
637 views
Two point charges have a total charge of 525 µC. When placed 1.15 m apart, the force each exerts on the other is 25.7 N and is
1 answer
439 views
Liquid nitrogen is obtained by condensing gaseous nitrogen found in air and boils at 77.36 K. At the boiling point, the density
1 answer
1,204 views
In a capacitor, you have two plates, one is connected to a battery but other is not, how the other plate become charge ups.
1 answer
435 views
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