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1,314 Answered Questions for the topic physical science

Physical Science

01/19/17

How does the paint on a car help to keep it from rusting

I need all answers for physical science

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Physical Science

01/14/17

8) Which will be moving faster after 3.0 s, a cyclist maintaining a constant velocity of 15 m/s straight ahead or a race car accelerating forward from a stoplig

S1 acceleration problem.

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Physical Science

01/04/17

How could you use the position vs. time graph to figure out who walked faster

Becca and sam each walked a 100-meter course around the school track. Each of their wplots are plotted on a single position vs. time graph. If you didnt have a chance to watch them in person, how... more

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Physical Science

01/04/17

Which of the following statements are true? Check all that apply.

A.An atom is always found in the exact same position. B.The faster atoms are moving, the less kinetic energy they have. C.Atoms are always moving.D.Atoms have kinetic energy.

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Physical Science

12/19/16

if a person walks 50ft north 30 ft west and 50 ft south. what is there distance of travel? what is their displacement?

if a person walks 50ft north 30 ft west and 50 ft south. what is there distance of travel? what is their displacement?

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Physical Science

12/18/16

if a 200n action force is exerted to the left, what is the reaction force?

I am studying for my final and am struggling with finding out the formula and/or answer to this question. I would appreciate it if someone could help out, thank you.

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Physical Science Chemisty

12/18/16

Mass describes: a. an object's size b.the amount of matter in an object c.the type of element in an object

This is from an 8th grade book.

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Physical Science

12/05/16

Fan can accelerate from the starting blocks to running 11 m/s down the track in 5 seconds. What is her acceleration?

What is her acceleration if she runs 11 m/s down the track in 5 seconds?

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Physical Science

12/05/16

Solar cells contain a material that absorbs electrons and gives off light

I need help please. can someone please help me. please. please. please

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Physical Science

12/02/16

a pump drains a tank by performing 150000 j of work. the power rating of the pump is 1200 watts, how long does it take to drain the tank

well i really need help because indont understand how to do this question

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Physical Science

11/26/16

A rock displaces 50 mL of water. The density of the rock is 2.5 g/cm3 . What is the mass of the rock?

I dont undertsand it

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Physical Science

11/07/16

What is the frictional force exerted on a 500 N block that is sliding across a ceramic floor that has coefficient or kinetic friction of 0.5

What is the frictional force exerted on a 500 N block that is sliding across a ceramic floor that has coefficient or kinetic friction of 0.5

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Physical Science

11/02/16

A merry-go-round moves in a circle at a constant speed. Is the merry-go-round accelerating?

Making Conclusions Based on Acceleration

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Physical Science

10/28/16

Identify the number of protons, neutrons and electrons in 14/7 N

Question from physical science 11th edition by Bill Tillery.

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Physical Science

10/28/16

What's the period and the family in the periodic table of xenon?

Question from a physical science textbook by Bill Tillery.

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Physical Science

10/21/16

if you add solute to a dilute solution, the solution becomes a more what solution?

what isthe solution more of ?

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Physical Science

10/18/16

What is the mass of gasoline (p=0.680g/cmto the 3rd) in a 94.6cmto the third gasoline tank

Physical science

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Physical Science

10/05/16

how many miles will a person travel if she drives at a speed of 29.05 meters per second and travels for 3.75 hours

1 = 60 1min = 60 sec 1mile = 1,609

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Physical Science

09/22/16

An object of mass 75.0kg moves in a circle of radius 1.0m with a velocity of 2.0m/s

what is the force exerted by this object

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Physical Science

09/22/16

A 70.0 kg student runs up a stairway to a heigh of 10.0m above the ground in 10.0 s

if the work done in the process is 6860j what is the power generated by the student in kW

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Physical Science

09/22/16

A football was kicked against a goal post with force of 250 N

if the football was in contact with the goal post for a time of 5.0 sec what is the impulse

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Physical Science

09/22/16

A ball is thrown at an average speed of 22 m/s

how long will it take to travel a distance of 75m

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Physical Science

09/20/16

The mass of a material is 27.0 g and has the dimensions of length=15 ft, Width=20cm and height=25 in

what is the density of the material?

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Physical Science

09/20/16

Assuming you weigh 165 pounds and the distance between you and the center of the earth is 6,400 km. If the mass of the earth is 6.0x10^24kg and G=6.67x10^-11

What is the gravitational force between you and the earth?

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Physical Science

09/20/16

If you and your friend each weighs 105 kg and stand 12 m away from each other, what is the gravitational force between the two of you?

Note : G = 6.67x10^-11 N.m^2/kg^2

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