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Lecture 17
Lecture 17

... makes an angle theta with the vertical. The bob will then be released and allowed to swing. Predict what will happen to the reading on the spring scale at the bottom of the swing (more, less or same as when the object is at rest). ...
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Section 14.1 Periodic Motion
Section 14.1 Periodic Motion

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UNIT 7 Lab

... In the experiment in part a and in the animation, there was a net force toward the center of the circle. Is this consistent with the direction of the acceleration for an object moving in a circle? f. If there is a force toward the center of the circle for an object in circular motion and no other fo ...
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Force and Motion in Two Dimensions - juan-roldan
Force and Motion in Two Dimensions - juan-roldan

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Slide 1 - Particle and Astroparticle Physics
Slide 1 - Particle and Astroparticle Physics

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... submerged in a liquid. If the reading on the scale is 3 N, then the buoyant force that the fluid exerts on the object is most nearly (A) 1.3 N (B) 1.0 N (C) 0.75 N (D) 0.33 N (E) 0.25 N ...
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... •In a vacuum, where there is ____________, all objects fall with ___________________________________________rate of acceleration. ...
Newton’s Second Law of Motion Force & Acceleration
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long range force

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Forces - Solon City Schools
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... ​ eight? Mass is the amount of matter in an object. It does not change based on where an object is. Weight is the force with which gravity is pulling on a mass. We know from Newton’s Second Law that Force = Mass x Acceleration. Since Weight is the Force acting on the object, “W” can be substituted f ...
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Newton`s first law of motion

... speed of the parachutist is zero. However he will immediately be acted upon by his weight acting vertically downwards and since the external resultant force is not zero he will accelerate downwards. As the parachutist’s speed increases so does the air resistance. This opposes the downwards force of ...
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... W=mg • If an object is dropped on Earth it accelerates towards it because of the gravitational pull. • This acceleration is called g – g=9.8 m/s² ...
P2 Knowledge Powerpoint – WIP Part 1
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... forces they exert on each other are equal and opposite • A number of forces acting at a point may be replaced by a single force that has the same effect on the motion as the original forces all acting together. This single force is the resultant force ( find an image for this) • The resultant force ...
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sph 3u(g) test: dynamics

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Nature`s Forces, F due to Gravity, and Grav. Field
Nature`s Forces, F due to Gravity, and Grav. Field

... on an object and is measured in ___________________. Thus, when you go from Earth to the moon, your mass stays constant, while your weight reduces to about 1/6th of your Earth weight. The relationship between mass and weight is given by the formula Fg = mg Fg is the force of gravity (i.e., weight) o ...
Ch4 Laws of Motion
Ch4 Laws of Motion

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PreLec3.pdf
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Forces & Newton`s Laws

... • Example: – Imagine a rocket is being launched from the earth. Hot gases are pushed out from the bottom of the rocket as the rocket is thrust upward. The force of the gases pushing against the surface of the earth is equal and opposite to the force with which the rocket moves upward ...
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Forces Notes

Name - Manasquan Public Schools
Name - Manasquan Public Schools

... 20. In a game of Tug-of War, when one group pulls another group across a set line, is an example of ________________________ forces? 21. Friction is a __________________ that _____________________ motion between ________ surfaces that are _______________. 22. When a force is continuously applied to ...
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Buoyancy



In science, buoyancy (pronunciation: /ˈbɔɪ.ənᵗsi/ or /ˈbuːjənᵗsi/; also known as upthrust) is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. This pressure difference results in a net upwards force on the object. The magnitude of that force exerted is proportional to that pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the volume of the object, i.e. the displaced fluid.For this reason, an object whose density is greater than that of the fluid in which it is submerged tends to sink. If the object is either less dense than the liquid or is shaped appropriately (as in a boat), the force can keep the object afloat. This can occur only in a reference frame which either has a gravitational field or is accelerating due to a force other than gravity defining a ""downward"" direction (that is, a non-inertial reference frame). In a situation of fluid statics, the net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body.The center of buoyancy of an object is the centroid of the displaced volume of fluid.
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