For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. 2. Inertia - A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. 3. Potential Energy - Is the energy stored in an object due to its position in a force field or in a system due to its configuration.
With Magnetic force no movement is necessary in contrast to electric force. C. The last part requires you to compare and contrast motors and Generators, C) In a generator the interaction of moving objects creates a magnetic field and that field generates the electric power. An electric motor uses energy created by a magnetic field. FRI. POST Thread
ANSWERS TO ENO":OF-CHAPTER QUESTIONS Multiple Choice and Matching Question answers appear in Appendix F of the text. Short Answer Essay Questions 23. Energy is defined as the capacity to do work, or to put matter into motion. Energy has no mass, takes up no space, and can be measured only by its effects on matter. Potential energy is the energy an object has because of its position in relatibn to other objects.
F L D. F L P P 8805-6504 –7– 9. N05/4/PHYSI/SPM/ENG/TZ0/XX+ If the resultant external force acting on a particle is zero, the particle A. B. C. D. must have constant speed. must be at rest. must have constant velocity.
Inertia- a property of matter that stays in its state of rest or its speed along a straight line as long as it's not acted on by an outside force. 3. Potential Energy- 4. Kinetic Energy- 5. Friction- Resistance 6.
D) Phases are often shown for each compound but are not critical to balancing an equation. E) All of the above statements (a-d) are true. 8. Which of the following statments is not true of balancing a chemical equation? A) Subscripts in the reactants must be conserved in the products.
58. Yes, a cars velocity is positive or negative with respect to its direction of motion from some point of reference. One direction of motion is defined as positive, and velocities in that direction are considered positive. The opposite direction of motion is considered negative: all velocities in that direction are negative. An object undergoing positive acceleration is either increasing its velocity in the positive direction or reducing its velocity in the negative direction.
In this sort of example you should choose one direction to be positive and the other direction to be negative. The example below illustrates this point. I will choose the right to be positive and the left to be negative. Before being fired After being fired -pcannon +pball p=0 pball - pcannon = 0 Sample Question 8 Sample Question 9 Static electricity In static electricity when two objects are rubbed together the electrons move from one object to another. This causes one object to have an overall positive charge and the other object to have an overall negative charge.
The vector function r(t) = t sin t, ___________ , t describes a spiral on the surface of a cone. B. For vector function r(t), unit tangent vector T(t) = b C. 10pts . r (t) dt is the __________________________ of a space curve r(t) from t = a t o t = b. a D. TRUE or FALSE: Curvature is negative when moving out of a curve. D. The normal plane for space curve C at a point is the plane containing unit vectors ______ and _______ E. F. TRUE or FALSE: B(t) does not need to be scaled since it is already a unit vector.
The way to point out the difference between the two is through the conclusions. In a deductive argument the conclusion is already implied within the premises, and in an inductive argument the conclusion is not implied within the premises. Deductive arguments are judged on whether or not they are valid, meaning if the premises are considered true and the conclusion cannot be false, it is valid. If there is a possibility that the conclusion may be false but the premises still are true, then it is invalid. When a deductive argument is invalid, it is automatically considered unsound.