Homework Answers
Work done is equal to
F. ds = FdsCosα where α is the angle between force and
displacement
When displacement and force are in same direction ,then work will
happen
Couple does work in rotational translation
Not in linear
Work is done, when body is moving
As body move, displacement occur
: Couple does work, when it is rotate
: Hence, best option is 4th
Add Answer to:
Choose the correct/best statement. A couple does work when it does not rotate because the resistance...
A force does +180 J of work when it acts on a moving object and its...
A force does +180 J of work when it acts on a moving object and its direction is in the same direction as the object’s displacement. How much work does this force do when the angle between it and the object’s displacement is 56°? W =
26.23 The moment distribution method in structural analysis can be treated as: Displacement method Force method...
26.23 The moment distribution method in structural analysis can be treated as: Displacement method Force method Flexibility method First order approximate method 26.24 The method of moment distribution in structural analysis is: An approximate one An interative method An exact one None of the above 26.25 The strain energy method in structural analysis is based on the minimization of the energy with respect to: Strains Force Stress Displacement 26.26 The minimization of potential energy in structural analysis results in: Equilibrium...
To understand the two most common procedures for finding torques when the forces and displacements are all in one plan...
To understand the two most
common procedures for finding torques when the forces and
displacements are all in one plane: the moment arm method and the
tangential force method. The purpose of this problem is to give you
further practice finding torques in two-dimensional situations. In
this case it is overkill to use the full cross product definition
of the torque because the only nonzero component of the torque is
the component perpendicular to the plane containing the problem.
There...
All questions added because it is needed for Question 6 to 11 to be answered (I believe). Answer Question 6 to 11. Ple...
All questions added because it is needed for Question 6 to 11 to
be answered (I believe).
Answer Question 6 to 11. Please. Thank you
Practical 3: Rotation due to an External Moment - Pre-Lab Preparation Rotation due to an External Moment: Pre-lab Preparation In this practical exercise you will investigate the angular acceleration of a disc about its centre of mass due to an applied moment, and determine the moment of inertia of the disc. Write down the equation...
Work Done by the Govtational Force bute the gravitational force G m./r into the integral equation...
Work Done by the Govtational Force bute the gravitational force G m./r into the integral equation on the previous genith Y replacing and find the work done by this force df w is the work done by the gravitational for moves away from t he gravitational force positive, negative, or zero when an object in the Earth? When it moves toward the Earth? When it orbits the Earth in a circle? Part B: Conservative and Non-conservative Forces welop and understorence...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant speed, then its tangential component of acceleration is A: zero. B: positive. C. constant D: negative. 2. 单选题的重点 The position, s. is given as a function of angular positione. as s = 10 sin(28). The velocity, v, is A: 20 sin(2) B: 20 cos(20) C: 20 w cos(20) D: 20 w sin(2) 3. S10 The 15-kg disk is pinned at and is initially at...
Please try to answer all questions and show work. Thank you. 1. A baseball player is...
Please try to answer all questions and show work. Thank
you.
1. A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player's hand. If we neglect air resistance, then the magnitude of the acceleration of the ball is? A. largest the moment after it leaves the players hand. B. smallgst the moment after it leaves the player's...
Work out the highlighted questions (3-6) clearly and with units, please. Thanks! 4/5 a the minimum...
Work out the highlighted questions (3-6) clearly and with
units, please. Thanks!
4/5 a the minimum kinetic energy at the apping point? (C) Use conservation of energy to determine the minimum angular velocity of the block just after the collision, (d) then use conservation of angular momentum during the collision to find the initial speed of the bullet vo. (Hint: Ignore the mass of the bullet after the collision. The moment of inertia of the cube about its bottom-right edge...
Linear Momentum of an object is conserved At all times b. Only when the net external...
Linear Momentum of an object is conserved At all times b. Only when the net external force on the object is Zero When the net external torque on the object is Zero d. Never A truck of mass 4000 (kg) is moving at 10 (m/s). A car of mass 1000 (kg) is moving at 40 (m/s). So, the truck’s momentum, compared to the car, is Greater b. Smaller c. the same d. Cannot say without knowing their accelerations A 1000...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The plune of the electron's Sicular path is parallel to the smooth vole faces of the electromagnet. In the region where the electron is moving the magnetic field is uniform and has magnitude 0,50 T. The electron moves with a speed of 1.5 x 10 m/s. a. If someone could observe the electron from the north pole of the electromagnet, would the electron inove clockwise...
To understand the two most
common procedures for finding torques when the forces and
displacements are all in one plane: the moment arm method and the
tangential force method. The purpose of this problem is to give you
further practice finding torques in two-dimensional situations. In
this case it is overkill to use the full cross product definition
of the torque because the only nonzero component of the torque is
the component perpendicular to the plane containing the problem.
There...
All questions added because it is needed for Question 6 to 11 to
be answered (I believe).
Answer Question 6 to 11. Please. Thank you
Practical 3: Rotation due to an External Moment - Pre-Lab Preparation Rotation due to an External Moment: Pre-lab Preparation In this practical exercise you will investigate the angular acceleration of a disc about its centre of mass due to an applied moment, and determine the moment of inertia of the disc. Write down the equation...
Work Done by the Govtational Force bute the gravitational force G m./r into the integral equation on the previous genith Y replacing and find the work done by this force df w is the work done by the gravitational for moves away from t he gravitational force positive, negative, or zero when an object in the Earth? When it moves toward the Earth? When it orbits the Earth in a circle? Part B: Conservative and Non-conservative Forces welop and understorence...
(Dynamics Examination) ist 1, S: 4 If a partide moves along a curve with a constant speed, then its tangential component of acceleration is A: zero. B: positive. C. constant D: negative. 2. 单选题的重点 The position, s. is given as a function of angular positione. as s = 10 sin(28). The velocity, v, is A: 20 sin(2) B: 20 cos(20) C: 20 w cos(20) D: 20 w sin(2) 3. S10 The 15-kg disk is pinned at and is initially at...
Please try to answer all questions and show work. Thank
you.
1. A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player's hand. If we neglect air resistance, then the magnitude of the acceleration of the ball is? A. largest the moment after it leaves the players hand. B. smallgst the moment after it leaves the player's...
Work out the highlighted questions (3-6) clearly and with
units, please. Thanks!
4/5 a the minimum kinetic energy at the apping point? (C) Use conservation of energy to determine the minimum angular velocity of the block just after the collision, (d) then use conservation of angular momentum during the collision to find the initial speed of the bullet vo. (Hint: Ignore the mass of the bullet after the collision. The moment of inertia of the cube about its bottom-right edge...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The plune of the electron's Sicular path is parallel to the smooth vole faces of the electromagnet. In the region where the electron is moving the magnetic field is uniform and has magnitude 0,50 T. The electron moves with a speed of 1.5 x 10 m/s. a. If someone could observe the electron from the north pole of the electromagnet, would the electron inove clockwise...
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