1,308 Answered Questions for the topic physical science

Physical Science

10/03/19

A car is traveling at 73 mi/hr in a 60 mi/hr zone. There is a cop parked 20 ft ahead of you. You slow down at an acceleration of -2ft/sec^2, for a total time of 3 seconds. Do you get a ticket?
Follows • 1
Expert Answers •1
Physical Science Newton’s 2nd Law

10/02/19

Calculating mass using Newton’s

On Earth, a football player weight 100 Newton’s. Calculate his mass.
Follows • 1
Expert Answers •1
Physical Science

10/01/19

During interphase, the DNA appears as very long strands of DNA known as what?
Follows • 1
Expert Answers •1
Physical Science

09/23/19

what is the net force of a 15.0-N force and a 28.0-N force act in the same direction
what is the net force of a 15.0-N force and a 28.0-N force acting on an object if these force act in the same direction
Follows • 1
Expert Answers •1
Physical Science

09/16/19

A box 10 centimeters high, 5 centimeters long, and 5 centimeters wide. Find the volume of a box with a length of 5 cm, a width of 5 cm, and a height of 10 cm. V = 0.2

Follows • 1
Expert Answers •1
Physical Science

09/13/19

The speed of a cheetah is 30 m/s. How long does it take a cheetah to travel a distance of 240 meter?
Follows • 0
Expert Answers •2
Physical Science

09/13/19

How fast was a plane flying if it traveled 4000 kilometers in 3 hours?
Follows • 0
Expert Answers •1
Physical Science

09/12/19

Graph y=x line. What is the slope of this line? Find value of y when x=5, when x=0, when x= -2
Follows • 1
Expert Answers •1
Physical Science

09/12/19

Graph y=2 line. Find value of y when x=5.
Follows • 0
Expert Answers •1
Physical Science

09/11/19

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
Follows • 1
Expert Answers •1
Physical Science Science Prealgebra

09/04/19

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)

Follows • 1
Expert Answers •1
Physical Science

09/04/19

A trip to cape Canaveral,Florida takes 10 hours. The distance is 816 km.calculate the average speed.
Follows • 0
Expert Answers •2
Physical Science Chemistry Physics Mcat

09/03/19

Conversions of Gases
Convert 765 mmHg to atm, Pa, and kPa.
Follows • 1
Expert Answers •1
Physical Science Physics

09/01/19

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
Follows • 1
Expert Answers •1
Physical Science

08/27/19

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?
Follows • 3
Expert Answers •1
Physical Science

08/21/19

the force due to gravity on venus is 8.9 m/s. would a 5.0 kg cantaloupe weigh more on earth or venus ?

Follows • 1
Expert Answers •2
Physical Science Physics Sat Math Mcat

08/20/19

Physics question
If a car's velocity speed changes from 30 m/s to 60 m/s, how does this affect the Kinetic Energy.
Follows • 1
Expert Answers •1
Physical Science

08/20/19

If a toy rocket accelerates to a velocity of 25 meters per second in 3 seconds, what is its acceleration?
Follows • 1
Expert Answers •1
Physical Science Chemistry Physics Mcat

08/18/19

Calculating Density
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
Follows • 1
Expert Answers •2
Physical Science

08/12/19

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
Follows • 2
Expert Answers •3
Physical Science Meteorology

08/11/19

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
Follows • 1
Expert Answers •1
Physical Science Meteorology Clouds

08/11/19

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
Follows • 1
Expert Answers •2
Physical Science Forecasting

08/10/19

What is a time series forecast?
Follows • 1
Expert Answers •1
Physical Science Correlation Wind Meteorology

08/08/19

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
Follows • 2
Expert Answers •1
Physical Science Weather Meteorology Tornado

08/08/19

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
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.