728 Answered Questions for the topic physical science
Graph y=2 line. Find value of y when x=5.
Figure out Spring potential Energy and ramp potential energy
For an assignment I'm working on, I need to explain why the spring potential energy and maximum ramp potential are the same for a particular data run. For my first run, both spring PE and Max Ramp... more
it takes seymour a slimy slug 20 minutes to travel from his favorite bush to the local trash can (a distance of 30 meters) how far can he travel in 1 hour (60 seconds)
A trip to cape Canaveral,Florida takes 10 hours. The distance is 816 km.calculate the average speed.
Conversions of Gases
Convert 765 mmHg to atm, Pa, and kPa.
Physical Science Physics
Train Physics Question
A train leaves Westlington heading west at 50 miles/ hour. Another train leaves Eastington heading east at 40 miles/ hour. The trains are on two seperate tracks. What time will will they pass each... more
What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?
the force due to gravity on venus is 8.9 m/s. would a 5.0 kg cantaloupe weigh more on earth or venus ?
If a car's velocity speed changes from 30 m/s to 60 m/s, how does this affect the Kinetic Energy.
If a toy rocket accelerates to a velocity of 25 meters per second in 3 seconds, what is its acceleration?
In determining the density of a rectangular metal bar, a chemist made the following measurements: length, 9.4 cm, width, 3.7 cm, height, 2.4 cm, mass, 45.9 g. Determine the density to the correct... more
A researcher observes a vehicle with an initial velocity of 14 m/s. The vehicle accerlerates uniformly with an accerleration of 3 m/s². After 6 seconds, what is the velocity of the vehicle?
Physical Science Meteorology
What causes the 'calm before the storm'?
The old adage "The calm before the storm" certainly has an observational scientific meaning to it -- something that many (including myself) have experienced -- that on a hot summer's day, when a... more
Do clouds float on anything?
Clouds of the same type have such a consistent altitude, it appears as if they're floating on an invisible layer. Is this true? Put another way, is there a significant change in air composition at... more
Is there a reliable way to identify regions with negatively-correlated winds?
When examining the potential for large-scale electricity grids, and when identifying the lowest-cost ways to generate clean electricity, a recurring theme is of spreading wind generation across a... more
What is the motivation of using the Enhanced Fujita Scale in place of the Fujita Scale?
In 2007, the US started using an Enhanced Fujita Scale in place of the Fujita Scale. From a "civilian's" perspective, the Fujita Scale seemed to measure wind whereas the Enhanced Fujita Scale... more
A car travels 500 miles east in 10 hours. What is the velocity of the car?
Why do certain areas on Earth have a higher or lower air pressure at sea level?
For instance, looking at [this map of world air pressure in January](http://www.mapsofworld.com/world-maps/wind-and-pressure-jan-enlarge-map1.html) and [this map of... more
What determines how fast clouds move?
Do cirrus clouds in the upper troposphere move faster than cumulus and stratus clouds in the lower atmosphere? What about clouds associated with extratropical systems, compared with clouds in the... more
Sea breeze - magnitude of horizontal pressure gradient?
What is the range of horizontal pressure gradients typically caused by the differential heating of land and water under sea breeze conditions?
Can an Atlantic hurricane enter Mediterranean sea?
I can't find any examples, has it just never happened before or is it impossible because of environmental factors?
What are the key differences between warm and cold core cyclones?
What are the key differences between warm and cold core cyclones? What is an example of each?
Synoptic weather predictibility under climate change scenarios?
Under climate change scenarios, it is quite certain that high latitude regions will experience more warming than at low latitudes. For example, in winter the reduced area of sea ice and snow cover... more