Centripetal Force
... Rotation: when an object turns about an internal axis. Revolution: when an objects turns about an external axis. Linear speed: the distance moved per unit time. It is greater on the outer edge of a rotating object than it is closer to the axis. • Tangential speed: speed of something moving along a c ...
... Rotation: when an object turns about an internal axis. Revolution: when an objects turns about an external axis. Linear speed: the distance moved per unit time. It is greater on the outer edge of a rotating object than it is closer to the axis. • Tangential speed: speed of something moving along a c ...
Honors Physics Chapter 5 Practice Problems
... oil into a tank 20. m above the pump’s intake. One cubic centimeter of fuel oil has a mass of 0.82 g. Also note that 1 L = 1000cm3. 8) A 2.0 kg mass falls 400.0 cm. a. How much work was done by the gravitational force? b. How much gravitational PE did the mass lose? 9) A force of 1.50 N acts on a 0. ...
... oil into a tank 20. m above the pump’s intake. One cubic centimeter of fuel oil has a mass of 0.82 g. Also note that 1 L = 1000cm3. 8) A 2.0 kg mass falls 400.0 cm. a. How much work was done by the gravitational force? b. How much gravitational PE did the mass lose? 9) A force of 1.50 N acts on a 0. ...
Ch 7 Notes
... 1)Linear (tangential) – rate of change of speed… due to change in speed units: m/s2 2) Angular – rate of change of angular speed – due to change in speed units: rad/s2 3) Centripetal – a center-seeking acceleration – due to change in direction units: m/s2 ...
... 1)Linear (tangential) – rate of change of speed… due to change in speed units: m/s2 2) Angular – rate of change of angular speed – due to change in speed units: rad/s2 3) Centripetal – a center-seeking acceleration – due to change in direction units: m/s2 ...
Review for Final - Lewis-Palmer School District 38
... 10. Find the initial velocity with which the ball in problem 6 is thrown. 24.99m/s 11. An archer fires an arrow directly upward, then quickly runs from the launching spot to avoid being struck by the returning arrow. If the arrow’s initial velocity is 85.1 m/s upward how long does the archer have to ...
... 10. Find the initial velocity with which the ball in problem 6 is thrown. 24.99m/s 11. An archer fires an arrow directly upward, then quickly runs from the launching spot to avoid being struck by the returning arrow. If the arrow’s initial velocity is 85.1 m/s upward how long does the archer have to ...
Force and Motion
... What are the 2 measurements you need to find the average speed of something? Explain the difference between motion and position. Some things such as you nose, do not change ____, while others, such as cars do change. How is a bar graph different from a data table? Define speed. Share with a partner ...
... What are the 2 measurements you need to find the average speed of something? Explain the difference between motion and position. Some things such as you nose, do not change ____, while others, such as cars do change. How is a bar graph different from a data table? Define speed. Share with a partner ...
Force and Motion
... What are the 2 measurements you need to find the average speed of something? Explain the difference between motion and position. Some things such as you nose, do not change ____, while others, such as cars do change. How is a bar graph different from a data table? Define speed. Share with a partner ...
... What are the 2 measurements you need to find the average speed of something? Explain the difference between motion and position. Some things such as you nose, do not change ____, while others, such as cars do change. How is a bar graph different from a data table? Define speed. Share with a partner ...
Physics 111 Problem Set 8, Chapter 9
... Problem 9 – 40P: An 8.0 kg body is traveling at 2.0 m/s with no external force acting on it. At a certain instant an internal explosion occurs, splitting the body into two chunks of 4.0 kg mass each. The explosion gives the chunks an additional 16 J of kinetic energy. Neither chunk leaves the line ...
... Problem 9 – 40P: An 8.0 kg body is traveling at 2.0 m/s with no external force acting on it. At a certain instant an internal explosion occurs, splitting the body into two chunks of 4.0 kg mass each. The explosion gives the chunks an additional 16 J of kinetic energy. Neither chunk leaves the line ...
Circular Motion
... whilst going round in a circle. The velocity vector is continuously changing and this must constitue an acceleration. If a body is accelerating while in circular motion there must be a force acting on it. ...
... whilst going round in a circle. The velocity vector is continuously changing and this must constitue an acceleration. If a body is accelerating while in circular motion there must be a force acting on it. ...
Forces and Motion
... 1. What is the speed of a rocket that travels 9000 meters in 12.12 seconds? 2. What is the speed of a jet plane that travels 528 meters in 4 seconds? 3. A child is riding on a wagon. The wagon goes out of control at 2 m/s! The child panics and scoots backwards at 0.2 m/s! What is the velocity of the ...
... 1. What is the speed of a rocket that travels 9000 meters in 12.12 seconds? 2. What is the speed of a jet plane that travels 528 meters in 4 seconds? 3. A child is riding on a wagon. The wagon goes out of control at 2 m/s! The child panics and scoots backwards at 0.2 m/s! What is the velocity of the ...
Energy Math
... • Walking a box up a flight of stairs or running a box up a flight of stairs? • You are doing the same amount of work, so why are you more tired? • POWER • Power is the measure of how fast work is done ...
... • Walking a box up a flight of stairs or running a box up a flight of stairs? • You are doing the same amount of work, so why are you more tired? • POWER • Power is the measure of how fast work is done ...
final09-sol - U of L Class Index
... 5– The 10-lb block is originally at rest on the smooth surface. It is acted upon by a radial force of 2 lb and a horizontal force of 7 lb, always directed at 30° from the tangent to the path as shown. Determine the time required to break the cord, which requires a tension T = 30 lb. What is the spee ...
... 5– The 10-lb block is originally at rest on the smooth surface. It is acted upon by a radial force of 2 lb and a horizontal force of 7 lb, always directed at 30° from the tangent to the path as shown. Determine the time required to break the cord, which requires a tension T = 30 lb. What is the spee ...
Samplefinal-sol - U of L Class Index
... 5– The 10-lb block is originally at rest on the smooth surface. It is acted upon by a radial force of 2 lb and a horizontal force of 7 lb, always directed at 30° from the tangent to the path as shown. Determine the time required to break the cord, which requires a tension T = 30 lb. What is the spee ...
... 5– The 10-lb block is originally at rest on the smooth surface. It is acted upon by a radial force of 2 lb and a horizontal force of 7 lb, always directed at 30° from the tangent to the path as shown. Determine the time required to break the cord, which requires a tension T = 30 lb. What is the spee ...
17.4 Inertia and Newton`s 1st law of motion
... object means that it will not move unless force is used! And if it is moving, force will be needed to slow it down, or speed it up, or make it change direction. Sir Isaac Newton was one of the first and greatest physicists (Module 1.9). Newton’s first law of motion states that an object at rest will ...
... object means that it will not move unless force is used! And if it is moving, force will be needed to slow it down, or speed it up, or make it change direction. Sir Isaac Newton was one of the first and greatest physicists (Module 1.9). Newton’s first law of motion states that an object at rest will ...
Document
... The bullet put a hole in a window of another building and hits the wall facing the window. Determine the distances D and H, as shown in the drawing, which locate the point where the gun was fired. Assume that the bullet does not slow down as it passes through the window. 7. A quarterback throws a fo ...
... The bullet put a hole in a window of another building and hits the wall facing the window. Determine the distances D and H, as shown in the drawing, which locate the point where the gun was fired. Assume that the bullet does not slow down as it passes through the window. 7. A quarterback throws a fo ...
Circular Motion
... various given speeds and radii. Calculate the A(c) and F(c) for each situation. Compare. • 1. speed = 10 m/s; radius 10 m • 2. speed = 20 m/s; radius 10 m • 3. speed = 30 m/s; radius 10 m • 4. speed = 10 m/s; radius 20 m • 5. speed = 10 m/s; radius 30 m ...
... various given speeds and radii. Calculate the A(c) and F(c) for each situation. Compare. • 1. speed = 10 m/s; radius 10 m • 2. speed = 20 m/s; radius 10 m • 3. speed = 30 m/s; radius 10 m • 4. speed = 10 m/s; radius 20 m • 5. speed = 10 m/s; radius 30 m ...
Motion
... but oppositely directed force on A. When you are standing on the floor, you are pushing down on the floor (Weight) but the floor pushes you back up so you don’t ...
... but oppositely directed force on A. When you are standing on the floor, you are pushing down on the floor (Weight) but the floor pushes you back up so you don’t ...
Physics Review with Key Ideas #1-19
... If an object is less dense than the fluid it is in, it will float, if it is more dense it will sink. The volume of an object is equal to the volume of the fluid it displaces. Buoyant force = the weight of the fluid displaced. If buoyant force = weight it will float, if buoyant force is less than the ...
... If an object is less dense than the fluid it is in, it will float, if it is more dense it will sink. The volume of an object is equal to the volume of the fluid it displaces. Buoyant force = the weight of the fluid displaced. If buoyant force = weight it will float, if buoyant force is less than the ...
Six-week DCA * Review
... 5. What is Newton’s first law of motion? 6. Give an example of Newton’s first law of motion. 7. Calculate the speed of a car that went a distance of 125 miles in 2 hours. (S=D/T) 8. What is friction? Give one example. ...
... 5. What is Newton’s first law of motion? 6. Give an example of Newton’s first law of motion. 7. Calculate the speed of a car that went a distance of 125 miles in 2 hours. (S=D/T) 8. What is friction? Give one example. ...
exam3_T122
... Q16. A certain wire stretches 0.90`cm when an outward force with magnitude F is applied perpendicular to the cross section of each end. The same forces are applied to a wire of the same material but with three times the diameter and three times the length. The second wire stretches: A) 0.30 cm B) 0. ...
... Q16. A certain wire stretches 0.90`cm when an outward force with magnitude F is applied perpendicular to the cross section of each end. The same forces are applied to a wire of the same material but with three times the diameter and three times the length. The second wire stretches: A) 0.30 cm B) 0. ...
8th 2014 midterm
... e) The speed and the direction of a moving object. f) The total distance traveled divided by the total time taken to travel that distance. g) The process of changing position. 47) Describe the motion of a car with an acceleration of –2 m/s2. 48) "If no forces are acting on a moving object, it will e ...
... e) The speed and the direction of a moving object. f) The total distance traveled divided by the total time taken to travel that distance. g) The process of changing position. 47) Describe the motion of a car with an acceleration of –2 m/s2. 48) "If no forces are acting on a moving object, it will e ...
Version A of Chapter 11 Quiz
... 3. A person walks 2 miles every day for exercise, leaving her front porch at 9:00 am. and returning to her front porch at 9:25 am. What is the total displacement of her daily walk? a. 2 miles c. 25 minutes b. 0 d. none of the above 4. A person drives north 5 blocks, then turns west, and drives 5 blo ...
... 3. A person walks 2 miles every day for exercise, leaving her front porch at 9:00 am. and returning to her front porch at 9:25 am. What is the total displacement of her daily walk? a. 2 miles c. 25 minutes b. 0 d. none of the above 4. A person drives north 5 blocks, then turns west, and drives 5 blo ...
Speeds and feeds
The phrase speeds and feeds or feeds and speeds refers to two separate velocities in machine tool practice, cutting speed and feed rate. They are often considered as a pair because of their combined effect on the cutting process. Each, however, can also be considered and analyzed in its own right.Cutting speed (also called surface speed or simply speed) is the speed difference (relative velocity) between the cutting tool and the surface of the workpiece it is operating on. It is expressed in units of distance along the workpiece surface per unit of time, typically surface feet per minute (sfm) or meters per minute (m/min). Feed rate (also often styled as a solid compound, feedrate, or called simply feed) is the relative velocity at which the cutter is advanced along the workpiece; its vector is perpendicular to the vector of cutting speed. Feed rate units depend on the motion of the tool and workpiece; when the workpiece rotates (e.g., in turning and boring), the units are almost always distance per spindle revolution (inches per revolution [in/rev or ipr] or millimeters per revolution [mm/rev]). When the workpiece does not rotate (e.g., in milling), the units are typically distance per time (inches per minute [in/min or ipm] or millimeters per minute [mm/min]), although distance per revolution or per cutter tooth are also sometimes used.If variables such as cutter geometry and the rigidity of the machine tool and its tooling setup could be ideally maximized (and reduced to negligible constants), then only a lack of power (that is, kilowatts or horsepower) available to the spindle would prevent the use of the maximum possible speeds and feeds for any given workpiece material and cutter material. Of course, in reality those other variables are dynamic and not negligible; but there is still a correlation between power available and feeds and speeds employed. In practice, lack of rigidity is usually the limiting constraint.The phrases ""speeds and feeds"" or ""feeds and speeds"" have sometimes been used metaphorically to refer to the execution details of a plan, which only skilled technicians (as opposed to designers or managers) would know.