Forces Test Review 1. Inertia can be best described as the (A) force that keeps an object in motion with constant velocity (B) force that keeps an object at rest (C) force that overcomes friction (D) property responsible for an object's resistance to changes in motion (E) property responsible for slowing down an object 2. A box is given a sudden push up a ramp. Friction between the box and the ramp is not negligible. Which of the following diagrams best represents the directions of the actual forces acting on the box as it moves upward after the push?
This light is lost in the cladding of the receiving optical fiber. Core diameter mismatch loss is typically only a concern with multimode optical fiber. To avoid core diameter mismatch make sure to check the cores of your fiber and make sure they are the same size to the best you can. Intrinsic factors that can affect connection performance in fiber-optics come in many types. A numerical aperture (NA) mismatch occurs when the NA of one optical fiber is different from the NA of the other optical fiber.
A simple machine is a device that makes a tough job easier by allowing a person that is applying force to apply less force. Also makes the force applied in a direction manipulated. There are six types of machines- lever, wheel and axle, pulley, inclined plane, wedge and a screw. The three machines in a trebuchet is a lever, inclined plane and a wedge. A lever is a rigid bar that rest on a pivot that is a used to help move heavy things or firmly fixed load with one end when pressure is applied to the other end.
The theory also says that capacity limitation was unaffected, which means that at the same time, other performances would not be affected. This theory was to do with controlled and automatic processing, and stated that the former was slow and the latter; fast, and thus differentiated between the two. The theory also stated that automatic processing was unaffected
An Atwood machine has two weights connected by a rope that passes over a pulley. As one weight moves down, the other will be pulled up. To begin, check that Mass A is 2.0 kg and Mass B is 3.0 kg. 1. Which mass do you think will move down?
Description and Theories A. Principles and Theories Used to Obtain our Result An conventional spring, when subjected the weight (w=mg) of an object at one of its terminations, will displace a certain distance, x, with an equal and opposite force, F, being created in the spring of which opposes the pull of the weight. This conventional spring will become significantly distorted if it is subjected to a large enough weight and the force, F, will only be able to return the spring to its original configuration once the burden is removed. The force that will restore the spring to its original configuration is directly proportional to the displacement that occurred. The following equation represents this relationship where k denotes the spring constant or stiffness of the spring, F=-kx Since x symbolizes the displacement or change in the length of the spring the above equation can now be surmised in the following manner, F=mg=-k∆l This new form makes it evident that a linear proportion exists between the plot of F as function of changing in length, ∆, thus confirming the spring does in fact obey Hooke’s Law.
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.
On the other hand, caster has little to no effect on tire wear. When it comes to toe though, it’s the vehicle’s most critical alignment settings relative to tire wear. If the toe setting is just 1/32-inch off of its appropriate setting, it will cause noticeable tire wear, which will look similar to camber tire wear. When it comes to tire inflation and tire wear, it’s pretty simple; tire inflation pressure should always be checked with a reliable tire gauge. By not using it, this leads to over inflation or under inflation.
Newton’s Laws apply to a bridge. The first law states an object in motion stays in motion, an object at rest stays at rest unless acted upon by an outside force. A bridge does not move, or at least it shouldn’t. The only thing in motion is the wind being acted on the bridge while it stays at rest. Newton’s second law is F=ma, which means that the force is equal to the mass and acceleration.
No, difference colors do not refract at different angles. 6. Do you still get the same focal lengths if you turn the lenses around to face the other way? Did you expect this result? Yes, it was the same focal length even when the lenses were turned around.