PHYS 1443 – Section 501 Lecture #1
... What do you think does the term “An object is at its equilibrium” mean? The object is either at rest (Static Equilibrium) or its center of mass is moving with a constant velocity (Dynamic Equilibrium). When do you think an object is at its equilibrium? Translational Equilibrium: Equilibrium in linea ...
... What do you think does the term “An object is at its equilibrium” mean? The object is either at rest (Static Equilibrium) or its center of mass is moving with a constant velocity (Dynamic Equilibrium). When do you think an object is at its equilibrium? Translational Equilibrium: Equilibrium in linea ...
A1 Physics Unit 5: Newton`s Laws Conceptual Physics Newton`s
... b. is less than or equal to static friction c. is the force to overcome when an object is moving at a constant velocity. d. all of the above 19. According to Newton’s ____ Law, an object with no net force acting on it can move with a constant velocity. 20. Newton’s _____ law states that the larger t ...
... b. is less than or equal to static friction c. is the force to overcome when an object is moving at a constant velocity. d. all of the above 19. According to Newton’s ____ Law, an object with no net force acting on it can move with a constant velocity. 20. Newton’s _____ law states that the larger t ...
Multiple-Choice Questions
... ___ 30. One of the first scientists to study the rate of gravitational acceleration was Newton. ___ 31. In the metric system, the gravitational acceleration has been found to be 9.8 meters per second2 ___ 32. The gravitational constant for acceleration varies for every object studied. ___ 33. The fo ...
... ___ 30. One of the first scientists to study the rate of gravitational acceleration was Newton. ___ 31. In the metric system, the gravitational acceleration has been found to be 9.8 meters per second2 ___ 32. The gravitational constant for acceleration varies for every object studied. ___ 33. The fo ...
Physics – Module 1 – Moving About
... Coasting with no pressure on the accelerator: In theory if this was the case, you should move at a constant velocity eternally but on Earth this is not true as there are several resistance factors that cause the car to slow down and eventually come to rest. Air resistance and friction are the two ma ...
... Coasting with no pressure on the accelerator: In theory if this was the case, you should move at a constant velocity eternally but on Earth this is not true as there are several resistance factors that cause the car to slow down and eventually come to rest. Air resistance and friction are the two ma ...
Dynamics Powerpoint - HRSBSTAFF Home Page
... The bus is initially at rest, as is the package. In the absence of any force, the natural state of the package is to remain at rest. When the bus pulls forward, the package remains at rest because of its inertia (until the back of the seat applies a forward force to make it move with the bus). NOT E ...
... The bus is initially at rest, as is the package. In the absence of any force, the natural state of the package is to remain at rest. When the bus pulls forward, the package remains at rest because of its inertia (until the back of the seat applies a forward force to make it move with the bus). NOT E ...
Document
... The human spine Simulation Treat the spine as a pivoted bar. There are essentially three forces acting on this bar: The force of gravity, mg, acting on the upper body (this is about 65% of the body weight). The tension in the back muscles. This can be considered as one force T that acts at an angle ...
... The human spine Simulation Treat the spine as a pivoted bar. There are essentially three forces acting on this bar: The force of gravity, mg, acting on the upper body (this is about 65% of the body weight). The tension in the back muscles. This can be considered as one force T that acts at an angle ...
Class Notes
... b. Determine the final translational speed vf of the object when the final displacement of the spring is at: ...
... b. Determine the final translational speed vf of the object when the final displacement of the spring is at: ...
Forces
... heard his voice through the box, so we decided to push him outside. The force of friction of the ground on the box was 68 N to the left. Mrs. Nipper can apply a force of 25 N to the right and every other 9th grade student can apply a force of 6 N to the right. Draw a force diagram. ...
... heard his voice through the box, so we decided to push him outside. The force of friction of the ground on the box was 68 N to the left. Mrs. Nipper can apply a force of 25 N to the right and every other 9th grade student can apply a force of 6 N to the right. Draw a force diagram. ...
MasteringPhysics: Assignmen
... By the equation of continuity, as the cross-sectional area of an artery decreases because of plaque formation, the velocity of blood through that region of the artery will increase. The new flow speed can be calculated by rearranging the equation of continuity, ...
... By the equation of continuity, as the cross-sectional area of an artery decreases because of plaque formation, the velocity of blood through that region of the artery will increase. The new flow speed can be calculated by rearranging the equation of continuity, ...
DimensionsUnits
... object’s velocity with respect to time) force (“push” or “pull” that can change an object’s motion) (Note that weight is just a ...
... object’s velocity with respect to time) force (“push” or “pull” that can change an object’s motion) (Note that weight is just a ...
Newton`s Laws Study Guide Multiple Choice Identify the choice that
... ____ 25. A hockey stick hits a puck on the ice. Identify an action-reaction pair in this situation. a. The stick exerts a force on the puck; the puck exerts a force on the stick. b. The stick exerts a force on the puck; the puck exerts a force on the ice. c. The puck exerts a force on the stick; the ...
... ____ 25. A hockey stick hits a puck on the ice. Identify an action-reaction pair in this situation. a. The stick exerts a force on the puck; the puck exerts a force on the stick. b. The stick exerts a force on the puck; the puck exerts a force on the ice. c. The puck exerts a force on the stick; the ...
Day 8, Ch 4 Forces
... Once the person comes in contact with the ground, it takes 0.8 seconds to come to a complete stop. Find the magnitude of the force, the ground exerts on the person during this time. First find the speed that the person hits the ...
... Once the person comes in contact with the ground, it takes 0.8 seconds to come to a complete stop. Find the magnitude of the force, the ground exerts on the person during this time. First find the speed that the person hits the ...
AP Physics
... 58. At what time after release will the block first return to its initial position? (A) 0.2 s (B) 0.3 s (C) 0.4 s (D) 0.6 s 59. What is the maximum speed of the block? (A) 0.5 m/s (B) 1.0 m/s (C) 1.5 m/s (D) 2.0 m/s 60. What is the total energy of the oscillating block? (A) 0.01 J (B) 0.02 J (C) 0.0 ...
... 58. At what time after release will the block first return to its initial position? (A) 0.2 s (B) 0.3 s (C) 0.4 s (D) 0.6 s 59. What is the maximum speed of the block? (A) 0.5 m/s (B) 1.0 m/s (C) 1.5 m/s (D) 2.0 m/s 60. What is the total energy of the oscillating block? (A) 0.01 J (B) 0.02 J (C) 0.0 ...
App 1 - Pre- and Post-Module Tests
... 1) An ice cube that floats in water has _________ the water it is floating in? A) a higher density than B) a lower density than C) the same density as 2) The balance between the weight of a mountain range and the buoyancy provided by the underlying mantle is called _____. ...
... 1) An ice cube that floats in water has _________ the water it is floating in? A) a higher density than B) a lower density than C) the same density as 2) The balance between the weight of a mountain range and the buoyancy provided by the underlying mantle is called _____. ...
Description of Motion in One Dimension
... If one car, travelling at 30 ms-1, overtakes another travelling at 25 ms-1¬, then according to the driver of the slower car, the relative velocity of the faster car is 5 ms-1. This is moving from one frame of reference to another. The velocities of 30 ms-1¬ and 25 ms-1¬ were from the position of a s ...
... If one car, travelling at 30 ms-1, overtakes another travelling at 25 ms-1¬, then according to the driver of the slower car, the relative velocity of the faster car is 5 ms-1. This is moving from one frame of reference to another. The velocities of 30 ms-1¬ and 25 ms-1¬ were from the position of a s ...
Kinetic Energy and Work
... In the figure (a) below a 2N force is applied to a 4kg block at a downward angle θ as the block moves right-ward through 1m across a frictionless floor. Find an expression for the speed vf at the end of that distance if the block’s initial velocity is: (a) 0 and (b) 1m/s to the right. (c) The situa ...
... In the figure (a) below a 2N force is applied to a 4kg block at a downward angle θ as the block moves right-ward through 1m across a frictionless floor. Find an expression for the speed vf at the end of that distance if the block’s initial velocity is: (a) 0 and (b) 1m/s to the right. (c) The situa ...
2.1 Work in Mechanical Systems
... Suppose you’re going to lift the 200-pound barbell. At first, when the barbell is at rest on the floor, the forces on the barbell are balanced. Gravity pulls the barbell down with a force of 200 pounds (its weight) while the floor pushes up with an equal and opposite force of 200 pounds. No motion o ...
... Suppose you’re going to lift the 200-pound barbell. At first, when the barbell is at rest on the floor, the forces on the barbell are balanced. Gravity pulls the barbell down with a force of 200 pounds (its weight) while the floor pushes up with an equal and opposite force of 200 pounds. No motion o ...
School of Physics - The University of Sydney
... flow changes from laminar to turbulent will depend to some extent on the shape of the object. As a rough guide, however, we can also say in this case that the transition from laminar to turbulent flow occurs around a value of 2000. With increasing Reynolds number, before the flow becomes fully turbu ...
... flow changes from laminar to turbulent will depend to some extent on the shape of the object. As a rough guide, however, we can also say in this case that the transition from laminar to turbulent flow occurs around a value of 2000. With increasing Reynolds number, before the flow becomes fully turbu ...
Chapter 4-6 - OPFI Conceptual Physics
... Suppose you are standing on a bathroom scale in an elevator. You can calculate the acceleration of the elevator if you know your weight and measure the force as read on the spring scale during the acceleration. Assume you weigh 600.0 N and the force of the scale on you is 700.0 N up. Fnet = 700.0 N ...
... Suppose you are standing on a bathroom scale in an elevator. You can calculate the acceleration of the elevator if you know your weight and measure the force as read on the spring scale during the acceleration. Assume you weigh 600.0 N and the force of the scale on you is 700.0 N up. Fnet = 700.0 N ...
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.