A: Here, the three edges u,v,w are mentioned as below. Q: Figure below shows a long straight wire near a rectangular current loop. What is the directionand ma Q: Free fall 1. A pebble is dropped into a deep well and is heard to hit the ground 3. Q: What is the electrostatic potential due to an electric dipole at an equatorial point?
A: The dipole is made up of positive and negative charges. The magnitude of charge of a non moving dipo Q: Kirchhoff's Law.
Q: free fall 4. A train is operating at an average speed of Q: A convex mirror used for rear-view on an automobile has a radius of curvature of 3. If a bus is The capacitive reactance of a capacitor at At what frequency is its capacitiver Q: Two objects of the same mass move with unknown angle relative to each other and collide. The collisi Q: What is the radius of the sun if the mass is 8. Jack and Rose had to abandon the ship the R. Titanic when it sank in the North Atlantic. A: Jack and Rose had to abandon the ship the R.
Rose ma Q: A light bulb consumes 75 watts when connected to a household current of V. Find the current A: This is based on basic concept of Power. Operations Management.
Chemical Engineering. Civil Engineering. Computer Engineering. Computer Science. Electrical Engineering. Mechanical Engineering. That is 65, upon 45 square. So it is to be yeah, 0. Permata rescript. That's all. Thanks for watching it. In mathematics, a proof is a sequence of statements given to explain how a conclusion is derived from premises known or assumed to be true.
The proof attempts to demonstrate that the conclusion is a logical consequence of the premises, and is one of the most important goals of mathematics. In mathematics, algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis.
In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. Click 'Join' if it's correct.
Kathryn C. Physics Mechanics 2 months, 2 weeks ago. View Full Video Already have an account? Khoobchandra A. Physics Chapter 25 Electromagnetic Waves. Discussion You must be signed in to discuss. Video Transcript everyone here it is. The energy falling on the solar collector in 4 h in part is enough to be useful—for example, for heating a significant amount of water. Taking a ratio of new intensity to old intensity and using primes for the new quantities, we will find that it depends on the ratio of the areas.
All other quantities will cancel. Decreasing the area increases the intensity considerably. The intensity of the concentrated sunlight could even start a fire. If two identical waves, each having an intensity of 1.
We know from Superposition and Interference that when two identical waves, which have equal amplitudes X , interfere perfectly constructively, the resulting wave has an amplitude of 2 X. Take the ratio of new intensity to the old intensity. Figure 2. These stereo speakers produce both constructive interference and destructive interference in the room, a property common to the superposition of all types of waves.
The shading is proportional to intensity. The intensity goes up by a factor of 4 when the amplitude doubles.
This answer is a little disquieting. The two individual waves each have intensities of 1. This violation, of course, cannot happen. What does happen is intriguing. The area over which the intensity is 4. There are other areas where the intensity is zero. The addition of waves is not as simple as our first look in Superposition and Interference suggested. We actually get a pattern of both constructive interference and destructive interference whenever two waves are added.
For example, if we have two stereo speakers putting out 1. Figure 2 shows what this interference might look like.
We will pursue interference patterns elsewhere in this text. Skip to main content. Oscillatory Motion and Waves. Search for:. Energy in Waves: Intensity Learning Objectives By the end of this section, you will be able to: Calculate the intensity and the power of rays and waves. Example 1. Calculating intensity and power: How much energy is in a ray of sunlight?
Calculate the amount of energy that falls on a solar collector having an area of 0.
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