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Questions (139)

Any powers not specifically granted to the federal goverment in the constitution
1. 0 answers
2. 444 views
which system is under higher pressure, a column of mercury or a column of water
1. 1 answer
2. 834 views
a hot-air balloon is seen in the sky simultaneously by two observers standing a t two different points on the ground. (the 2
1. 2 answers
2. 1,534 views
a hot-air balloon is seen in the sky simultaneously by two observers standing a t two different points on the ground. (the 2
1. 0 answers
2. 687 views
An executive committee of three is selected from a group of ten. Which expression best describes the number of combinations?Thes
1. 1 answer
2. 448 views
An executive committee of three is selected from a group of ten. Which expression best describes the number of combinations?Thes
1. 2 answers
2. 533 views
how do hydrogen bonds relate to the transfer off heat from the equator towards the poles of earth
1. 0 answers
2. 395 views
calculate the number of moles of solute present in 124.0g of a solution that is 6.45% glucose by mass.
1. 1 answer
2. 3,609 views
a 0.100m k2so4 solution has a freezing point of -0.43 degrees. what is the van hoff factors for this solution? kf=1.86degree/m?0
1. 3 answers
2. 3,883 views
a solution of sulfur (2.560g) in naphthalene (100g) freezes 0.68K lower the freezing point of pure naphthalene (353.10K). for
1. 3 answers
2. 2,327 views
the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an
1. 4 answers
2. 722 views
the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an
1. 0 answers
2. 572 views
the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an
1. 1 answer
2. 622 views
what volume of hydrochloric acid of density 1.18g cm3 and containing35.0% by mass must be allowed to react with zinc in order to
1. 3 answers
2. 1,030 views
You need to prepare 500.00 mL of a 0.15 M solution of nitric acid . Concentrated nitric acid comes from the chemical copmanies
1. 2 answers
2. 756 views
A 0.386g sample of a protein was dissolved in water and made up to a volume of 60mL at 21.0°C. At this temperature the osmotic
1. 1 answer
2. 942 views
Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions. At 100°C, the equilibrium
1. 5 answers
2. 1,713 views
if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity
1. 0 answers
2. 432 views
if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity
1. 0 answers
2. 422 views
if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity
1. 0 answers
2. 491 views
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals
1. 2 answers
2. 725 views
what was the direction and altitude for the moon in all of january 2010?
1. 0 answers
2. 326 views
how did the hunter get hurt while bending over to study some tracks?
1. 4 answers
2. 2,770 views
For what reason did the French Academy of Science create the metric system
1. 3 answers
2. 716 views
what is an alkali and where do we use them
1. 2 answers
2. 374 views
bandmanton skill and technique which required improvemant describe a performance
1. 1 answer
2. 325 views
can a mechanical advantage of a simple machine be les than 1? explain
1. 1 answer
2. 525 views
A worker uses awhell and axle with inner radius of 20cm and outer of 50 cm to lift a 2400N object.a) What is the mechanical
1. 0 answers
2. 551 views
the inclined plane is 30* from the grounda) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be
1. 1 answer
2. 670 views
What condition or conditions are necessary for static equilibrium?a) E Fx =0 b) E Fx=0, E Fy=0, E T=0 c) E T=0 d) E Fx=0, E Fy=0
1. 0 answers
2. 506 views
a lever is 5 m long. The distance from the fulcrum to the weight to be lifted is 1 m. If a 3000 N rock is to be lifted, how much
1. 2 answers
2. 4,025 views
a 10-m uniform beam of weight 100N is supported by two ropes at the ends. If a 400N erson sits at 2.0 m from the left end of the
1. 3 answers
2. 4,962 views
a book weighs 6 n. when held at rest above your head the net force on the book is?
1. 1 answer
2. 857 views
A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.0 cm,
1. 0 answers
2. 757 views
Suppose that you let the masses m1 and m2 slide (without adding the third mass).a) What is the acceleration of the mass 25g?
1. 1 answer
2. 576 views
Suppose that you let the masses m1 and m2 slide (without adding the third mass).a) What is the acceleration of the mass 25g?
1. 0 answers
2. 503 views
what line of longitude goes through Ghana?
1. 1 answer
2. 540 views
why does a vast quantity of plankton exist?
1. 3 answers
2. 398 views
hi ppl does this look like an intresting book reviewThe book that I have recently been reading is called sense and sensibility
1. 3 answers
2. 650 views

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