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solns - CEMC
solns - CEMC

Physics Exam – Circular Motion – Place all answers on the test
Physics Exam – Circular Motion – Place all answers on the test

... an open-air glass. If the glass is held level and at rest (such that there is no acceleration), then the candle flame extends in an upward direction. However, if you hold the glass-candle system with an outstretched arm and spin in a circle at a constant rate (such that the flame experiences an acce ...
Physics 112
Physics 112

... At this point in time we will only be dealing with bodies that have a constant or uniform velocity. slope = rise = ∆ Y = ∆ d = m = v run ∆X ∆t s The steeper the slope, the greater the objects velocity. Since positions can be +ve or –ve, therefore displacements can also be +ve or –ve. From this we se ...
Summary of the unit on force, motion, and energy
Summary of the unit on force, motion, and energy

... accomplish this; it’s bigger for a concrete block than it is for a cell phone, because the block weighs more. In some cases we can ignore both this response force and any other forces that would cause the system being studied to do something that is being prevented. Thus a ball on a level table in e ...
4.3 Newton`s Second Law of Motion
4.3 Newton`s Second Law of Motion

... somewhat with speed; there may be some dependence on the surface area of the objects. Also, remember that these equations are for the magnitude of the frictional force—it is always perpendicular to the normal force. (Why?) Note: Friction ONLY depends on the MATERIALS sliding against each other, NOT ...
Chapter 3:  Motion and Forces Goals of Period 3
Chapter 3: Motion and Forces Goals of Period 3

... across a level floor in the direction of the applied force. Next we consider an applied force equal to or less than the force of friction. If an object is at rest, an applied force greater than the force of friction is necessary to start the object in motion. Therefore, an object at rest remains at ...
Forces and Motion - UTeach Outreach
Forces and Motion - UTeach Outreach

... Scientific  Investigation  and  Reasoning  Skills  Addressed  in  Lesson:   6.2E  and  8.2E  analyze  data  to  formulate  reasonable  explanations,  communicate  valid   conclusions  supported  by  data  and  predict  trends   6.3A  and  8.3A ...
Ch 2 - NM - (b) Dynamics
Ch 2 - NM - (b) Dynamics

04_lecture_outline
04_lecture_outline

... CHECK YOUR NEIGHBOR, Continued-1 A 5-kg iron ball and a 10-kg iron ball are dropped from rest. When the free-falling 5-kg ball reaches a speed of 10 m/s, the speed of the free-falling 10-kg ball is ...
free physics notes
free physics notes

PPT
PPT

... Dennis and Carmen are standing on the edge of a cliff. Dennis throws a basketball vertically upward, and at the same time Carmen throws a basketball vertically downward with the same initial speed. You are standing below the cliff observing this strange behavior. Whose ball is moving fastest when it ...
Vectors & Scalars - The Grange School Blogs
Vectors & Scalars - The Grange School Blogs

... 1) The plank is set up as shown and the balance zeroed. When the student lies on the plank the reading is 600 N. The balance is 2 m from the student’s feet and the centre of gravity of the student is 1.5 m from their feet. What is the student’s weight? Taking moments about the feet. 600 x 2 = W x 1 ...
N - Purdue Physics
N - Purdue Physics

... a car would not move but just spin it’s wheels a car would not be able to turn a corner we would not be able to walk objects would slide off surfaces unless perfectly horizontal ...
Newton`s 1 st Law
Newton`s 1 st Law

Centripetal/Centrifugal Force
Centripetal/Centrifugal Force

force
force

... OBJECT? A. THE FORCES ARE SUBTRACTED. THE DIRECTION IS THE SAME AS THE FORCES B. THE FORCES ARE ADDED. THE DIRECTION IS OPPOSITE AS THE FORCES C. THE FORCES ARE ADDED. THE DIRECTION IS THE SAME AS THE FORCES ...
Example
Example

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LAHS Physics Semester 1 Final Practice Multiple
LAHS Physics Semester 1 Final Practice Multiple

... 15. A landing airplane makes contact with the runway with a speed of 78.0 m/s and moves toward the south. After 18.5 seconds, the airplane comes to rest. What is the average acceleration of the airplane during the landing? A) 2.11 m/s2 , north D) 4.22 m/s2, south B) 2.11 m/s2 , south ...
Document
Document

Document
Document

... The mass of an object is how much of the object exists. If an object is bigger, it is harder to lift or move because there is more of it to move, requiring more energy to move it. This can also relate to the amount of force it takes to move an object, as force is related to the mass as well. There a ...
Supplimentary Notes III Mechanical Energy and Momentum In the
Supplimentary Notes III Mechanical Energy and Momentum In the

... Forces that always act perpendicular to the object’s velocity will do no work on the object. Since there is no component of force in the direction of the motion, these forces can only change the direction but not increase the speed (kinetic energy) of the object. The tension in the rope of a simple ...
Document
Document

... What affect to you think force applied to an object has on acceleration of the object? When force is increased in the same direction as the acceleration, then the acceleration increases. When force is applied or increased in the opposite direction acceleration will lessen. When force is applied in ...
File - Physical Science
File - Physical Science

... smooth and shiny surface. Even smooth and shiny surfaces have bumps and tiny points on them, which catch and try to stick together when they come in contact with each other. Different objects have different bumps and grooves on their surfaces. Some surfaces have few points to catch and stick togethe ...
Slide 1
Slide 1

ch6h
ch6h

... A model airplane of mass 0.75 kg flies in a horizontal circle at the end of a 60 m control wire, with a speed of 35 m/s. Compute the tension in the wire if it makes a constant angle of 20 with the horizontal. The forces exerted on the airplane are the pull of the control wire, its own weight, and a ...
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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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