phys1144ch6p1
... (a) Determine the work a hiker must do on a 15.0 kg backpack to carry it up a hill of height h=10.0 m. Determine also (b) the work done by gravity on the back pack, and (c) the net work done on the backpack. For simplicity, assume the motion is smooth and at constant velocity. (a) Fy = ma y FH - ...
... (a) Determine the work a hiker must do on a 15.0 kg backpack to carry it up a hill of height h=10.0 m. Determine also (b) the work done by gravity on the back pack, and (c) the net work done on the backpack. For simplicity, assume the motion is smooth and at constant velocity. (a) Fy = ma y FH - ...
Conservation of Energy
... Where is potential energy located? I lift a book of mass m a height h and say that the book has PEgrav = mgh. But it is not correct to say that the PE “in the book”. The gravitational PE is associated with the system of (book + earth + gravitational attraction between book and earth). The PE is not ...
... Where is potential energy located? I lift a book of mass m a height h and say that the book has PEgrav = mgh. But it is not correct to say that the PE “in the book”. The gravitational PE is associated with the system of (book + earth + gravitational attraction between book and earth). The PE is not ...
Mechanics II - Thierry Karsenti
... rotational motion and Gravitation. The module begins with the study of impulse of a force and its relation with momentum. The second activity is the kinematic and dynamic descriptions of rotational motion. New quantities to describe rotational motion are introduced and used. It will be show that the ...
... rotational motion and Gravitation. The module begins with the study of impulse of a force and its relation with momentum. The second activity is the kinematic and dynamic descriptions of rotational motion. New quantities to describe rotational motion are introduced and used. It will be show that the ...
June 2008 - Vicphysics
... An inverted wave (1) of the same period (two cycles) (1) that is heading for a peak voltage of 5.0 V, but is clipped at 3.0 V and at -3.0 V. (1) Conseq on (5). Note: The max and min values of Fig 4 assume the resistance of the emitter resistor is zero. [2.3/3, 77%] ...
... An inverted wave (1) of the same period (two cycles) (1) that is heading for a peak voltage of 5.0 V, but is clipped at 3.0 V and at -3.0 V. (1) Conseq on (5). Note: The max and min values of Fig 4 assume the resistance of the emitter resistor is zero. [2.3/3, 77%] ...
MC answer key for exam2
... If the momentum of a ball is doubled, then the kinetic energy is: a. b. c. D e. ...
... If the momentum of a ball is doubled, then the kinetic energy is: a. b. c. D e. ...
File
... 6. Explain the difference between work & power. 7. You apply 200N to a machine, and the machine applies 2000N to an object. What is its ...
... 6. Explain the difference between work & power. 7. You apply 200N to a machine, and the machine applies 2000N to an object. What is its ...
Course Syllabus
... 1.understand linear and curvilinear motion of particles to be able to define displacement, velocity and acceleration functions using different coordinate systems. 2.understand absolute dependent motion of two particles and relative motion of two particles u 3.understand Newton’s Laws of Motion and t ...
... 1.understand linear and curvilinear motion of particles to be able to define displacement, velocity and acceleration functions using different coordinate systems. 2.understand absolute dependent motion of two particles and relative motion of two particles u 3.understand Newton’s Laws of Motion and t ...
PHYS 1443 – Section 501 Lecture #1
... A car with a mass of 1300kg is constructed so that its frame is supported by four springs. Each spring has a force constant of 20,000N/m. If two people riding in the car have a combined mass of 160kg, find the frequency of vibration of the car after it is driven over a pothole in the road. Let’s ass ...
... A car with a mass of 1300kg is constructed so that its frame is supported by four springs. Each spring has a force constant of 20,000N/m. If two people riding in the car have a combined mass of 160kg, find the frequency of vibration of the car after it is driven over a pothole in the road. Let’s ass ...
Rotational Dynamics
... • The angular acceleration this torque produces depends on the mass of the rotating object and upon the distribution of its mass with respect to the axis of rotation. • If the mass remains fixed in position, torque and angular acceleration are directly proportional. • If the mass is closer to the ...
... • The angular acceleration this torque produces depends on the mass of the rotating object and upon the distribution of its mass with respect to the axis of rotation. • If the mass remains fixed in position, torque and angular acceleration are directly proportional. • If the mass is closer to the ...
Chapter 10 (Read Please)
... There is an analogy between the kinetic energies associated with linear motion (K = ½ mv 2) and the kinetic energy associated with rotational motion (KR= ½ I2). Rotational kinetic energy is not a new type of energy, the form is different because it is applied to a rotating object. The units of rota ...
... There is an analogy between the kinetic energies associated with linear motion (K = ½ mv 2) and the kinetic energy associated with rotational motion (KR= ½ I2). Rotational kinetic energy is not a new type of energy, the form is different because it is applied to a rotating object. The units of rota ...
Weightlessness - The Physics Classroom
... 11. Earth-orbiting astronauts feel weightless in space because _____. Choose all that apply. a. They are in free-fall motion. b. There is an absence of contact forces acting upon their bodies. c. The weight of objects diminish to close to 0 N at these distances from Earth's center. d. There is no gr ...
... 11. Earth-orbiting astronauts feel weightless in space because _____. Choose all that apply. a. They are in free-fall motion. b. There is an absence of contact forces acting upon their bodies. c. The weight of objects diminish to close to 0 N at these distances from Earth's center. d. There is no gr ...
Lecture6
... vehicles such as cars and locomotives is friction. A car moves because a reaction to the force exerted by the tire produces a force by the road on the wheel. • What is then driving force of a rocket? When an explosion occurs in a spherical chamber with fuel gas in a rocket engine the hot gas expan ...
... vehicles such as cars and locomotives is friction. A car moves because a reaction to the force exerted by the tire produces a force by the road on the wheel. • What is then driving force of a rocket? When an explosion occurs in a spherical chamber with fuel gas in a rocket engine the hot gas expan ...
Classical central-force problem
In classical mechanics, the central-force problem is to determine the motion of a particle under the influence of a single central force. A central force is a force that points from the particle directly towards (or directly away from) a fixed point in space, the center, and whose magnitude only depends on the distance of the object to the center. In many important cases, the problem can be solved analytically, i.e., in terms of well-studied functions such as trigonometric functions.The solution of this problem is important to classical physics, since many naturally occurring forces are central. Examples include gravity and electromagnetism as described by Newton's law of universal gravitation and Coulomb's law, respectively. The problem is also important because some more complicated problems in classical physics (such as the two-body problem with forces along the line connecting the two bodies) can be reduced to a central-force problem. Finally, the solution to the central-force problem often makes a good initial approximation of the true motion, as in calculating the motion of the planets in the Solar System.