1,318 Answered Questions for the topic physical science

Physical Science Physics

12/09/14

The jet airplane takes off with the acceleration 15m/s2. In 3 minutes it travels the distance
A) 54 km b) 108 km c) 464 km d) 62 km e) 243 km
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Physical Science Science Energy Sustainable Energy

11/10/14

Calculate the pumped storage capacity
Two of the largest dams in Australia’s Snowy Hydro scheme are Lake Eucumbene (4500 GL storage capacity) and Blowering Dam (1628 GL storage capacity), which is situated 803m below Lake... more
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Physical Science

11/03/14

A car accelerates from 0 mph to 40 mph in 5 seconds as it merges into a northbound lane of traffic. What is the acceleration of the car?
Need help with this!
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Physical Science

10/28/14

boyle's law states that the volume of a gas is inversely proportional to its pressure if the?
A)temperature and number of particles are consistent B)temperature reaches absolute zero C)number of particles are doubled  D)temperature and number of particles are doubled
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Physical Science

10/28/14

what is the result of a force distributed over and area
A)temperature B)volume  C)pressure D)mass
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Physical Science

10/28/14

flammability is a material's ability to burn in the presence of
A) hydrogen B)nitrogen C)oxygen  D)carbon dioxide
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Physical Science

10/28/14

a material that is malleable and conducts electricity is most likely
A)wood B)ice  C) a metal D) carbon dioxide
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Physical Science

10/28/14

a mixture can be classified as a solution suspension or colloid based on the?
A) number of particles it contains B) size of its largest particles C)color of its particale D) size of its smallest particales
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Physical Science Science Physics Energy

10/18/14

Are they any calculation/formula of Ocean Thermal Energy Conversion that uses the unit of power or energy?
example: kWh/d/y, w/m2 etc..
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Physical Science

10/04/14

car goes from 22.0 miles hour to 74.0 miles hour in 8.56 seconds
car goes from 22.0 miles hour to 74.0 miles hour in 8.56 seconds
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Physical Science

10/03/14

If an object of mass 8 kg has a velocity of 9 m/s what is the linear momentum
How to solve this equation 
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Physical Science

10/03/14

how calculate total distance
it is graphing.
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Physical Science

09/08/14

how fast can Xander run?
Xander was walking across a train bridge and was 2/3 rds of the way across when he saw a train coming at 45 mph toward him.  Xander is fast enough that if he ran the rest of the way he'd make it.... more
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Physical Science

09/04/14

What is the mass of the horse of it accelerates at the rate of 18km/hr with a force of 78 newtons
I don't understand 
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Physical Science

08/22/14

what term describes an energy resource that can be used up
im doing some online classes at school and most sites are blocked
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Physical Science

08/19/14

how is it possible to a person to walk for hours and still have a displacement of 10 feet?
how is it possible to a person to walk for hours and still have displacement of 10 feet uwhyuasbddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd gggggggggggggggggggggg... more
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Physical Science

08/14/14

When light falls on a surface which is irregular compared to its wavelength,
a. the reflection is diffuse b. glare is produced c. the wavelength is refracted d. all of these
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Physical Science

08/01/14

Will every solid with the same dimensions have the same density. explain briefly please
Will every solid with the same dimensions have the same density. explain briefly please
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Physical Science

07/15/14

Which processes produce solute ions in a solution?
Im struggling with Physical Science and I need Help bad.
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Physical Science

07/07/14

an experiment measures the breaking point of idential strips of wood made from different trees. The procedure must contain which of the following instructions
I would appreciate if you could help me answer a couple questions
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Physical Science

07/05/14

help with voltage and electricity c/o physical science
  true or false      iron is easily magnetized because it has pairs of electrons which gspin in the same direction   i think this is true     true or false      voltage can be induced in a... more
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Physical Science

07/05/14

help with distance and angles and projectiles in Physical Science
1.  In archery a person draws the bow and shoots an arrow at an angle of 50 degrees.  it will go a distance of 100 meters.  at what other angle could you shoot the arrow with the same amount of... more
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Physical Science

06/03/14

What can be inferred after performing the experiments in the Atomic Theory lab?
I don't understand what they're asking
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Physical Science

05/30/14

how could you perform a dissolution reaction with table salt and a beaker of water
Another Question I believe I have the right answer but I want to make sure if I'm right so please tell me your opinion's 
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Physical Science

05/30/14

list two ways that energy is involved in chemical reactions
I really. Need help this question  please help  I have Beem looking for hours to try and answer this question but It's no use so I'm asking u guys 
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