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1- What does matter consist of?

2- Why is gravity so strange?

3- Why does time travel only in one direction?

4- Where did antimatter go?

5- What is in the gray area between solid and liquid?

6- Can we find a theory Unified for physics? 

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

1. A physics book dropped from the top of the school takes 3.00seconds to hit the ground. How high is the school and how fast wasthe book traveling when it hit the ground?

2. A ball rolls down a hill with constant a acceleration of 3 m/s2(squared). If it starts from rest, what is its speed at the end of4 seconds an how far did it move?

3. If I jump out of an airplane, and i am in the fictitious worldof the physics book (no air), how long will it take me to reach aspeed of 131.7 miles per hour and how far will I have traveledduring that time?

4. A tennis ball is thrown vertically upward it returns to thestarting point 6.0 seconds later. How high did the ball go?

5. Ryan's parents are out of town, so, of course, he throws aparty. During the party, a priceless vase was knocked from a shelf2.5 meters high and broke into several million pieces. There is notenough super glue in the world to put the vase back together. Howlong does it take the vase to hit the floor, how many miles perhour was it traveling when it hit the floor, and who does he blamefor this?

6. Jenelle throws Matt's calculator vertically downward with aninitial velocity of -4.9 m/s from the top of Enger Tower (19.6meters high). Determine:
a. the velocity of the calculator just as it hits the ground--
b. the time the calculator is in the air ---
Don't know the formulas or do I understand these problems and haveno book as a point of reference. Can you help me?

A hydraulic has two pistons. Piston 1 has a radius of 0.7 cm andpiston 2 has a radius of 2.5 cm.

a.) Determine the area of piston 1.
___________cm2

b.) Determine the area of piston 2.
____________ cm2

c.) Determine the theoretical mechanical advantage (TMA) of thehydraulic.
___________________


d.) What does Pascal's Principle say?


1.The total amount of volume remains constant.

2.The pressure applied to an enclosed fluid is transmittedundiminished throughout the fluid and to the walls of thecontainer.

3.Fluid tends to flow faster where the pressure is lower.

4.The force per unit area.

5.The amount of fluid displaced by an object is equal to the volumethat has been submerged in the fluid.

6.The buoyant force on an object wholly or partially submerged in afluid is equal to the weight of the fluid it displaces.

e.) A pressure of 130 Pa is applied at piston 1. As a result, howmuch pressure will be exerted at piston 2?
________________Pa


f.) For a hydraulic, why does the actual mechanical advantage (AMA)tend to be less than the TMA?

1.Because of friction between the pistons and the walls of thehydraulic.

2.Because liquid is compressible.

3.Because of air drag.

4.Because it's impossible to deliver electricity at a constant rateto the hydraulic.
.
g.) What can be done to make the AMA closer to the the TMA?

1.Use superconductors.

2.Use a gas instead of a liquid.

3.Use a lubricant.

4.Make it more aerodynamic.
.

A hydraulic has two pistons. Piston 1 has a radius of 0.7 cm andpiston 2 has a radius of 2.5 cm.

a.) Determine the area of piston 1.
___________cm2

b.) Determine the area of piston 2.
____________ cm2

c.) Determine the theoretical mechanical advantage (TMA) of thehydraulic.
___________________


d.) What does Pascal's Principle say?


1.The total amount of volume remains constant.

2.The pressure applied to an enclosed fluid is transmittedundiminished throughout the fluid and to the walls of thecontainer.

3.Fluid tends to flow faster where the pressure is lower.

4.The force per unit area.

5.The amount of fluid displaced by an object is equal to the volumethat has been submerged in the fluid.

6.The buoyant force on an object wholly or partially submerged in afluid is equal to the weight of the fluid it displaces.

e.) A pressure of 130 Pa is applied at piston 1. As a result, howmuch pressure will be exerted at piston 2?
________________Pa


f.) For a hydraulic, why does the actual mechanical advantage (AMA)tend to be less than the TMA?

1.Because of friction between the pistons and the walls of thehydraulic.

2.Because liquid is compressible.

3.Because of air drag.

4.Because it's impossible to deliver electricity at a constant rateto the hydraulic.
.
g.) What can be done to make the AMA closer to the the TMA?

1.Use superconductors.

2.Use a gas instead of a liquid.

3.Use a lubricant.

4.Make it more aerodynamic.
.

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