Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Scalars and Vectors
This is one of the harder ideas to get used to when you start learning physics. The trick is to see that there is one basic difference between a scalar and a vector.
A scalar can be described by only a number and a unit, sometimes, these two are lumped together and called the magnitude.
Here are some scalar quantities:
Vectors are a scalar quantity plus another part which tells the direction. To wrote a vector you need the number and unit part, magnitude plus a direction. When vectors are being represented by letters the letters appear in bold face like x, a, and i, and scalars will be standard letters like x, a, and i.
Example: your position from a certain point on a map is a vector, needs size and direction included, whereas your temperature only needs a size. Don't sweat this now just refer to it later when it comes up.
A weakly guiding fibre with a particular graded core index has cut-off V-values for its 2nd, 3rd and 4th modes of 2.5, 3.9 and 5.2, respectively. The core radius is 4 microns, the
Reflection of a Pulse at a Free End Let's assume a pulse moving by a medium - perhaps by a rope or a slinky. What happens to the pulse while it reaches the end of in which medi
What do you mean by thin prism? and What is the lateral shift given by a parallel sided glass slab for grazing incidence of light?
River Boat Vectors and Projectiles Suppose the motion of the river boats below. Within that case, the boat is heading across the river. Inside the top case, the presence of a c
How are solid core fibers terminated? The very architecture of solid core fibers creates the precise termination is a not easy operation, although it should be said that in mos
When white light is normally occurrence on a diffraction grating the first order maximum for which colour of light occurs at the greatest angle with respect to the straight ahead d
A simple pendulum Tie a cord at least 2 m long to some object like a stone or a small metal ball. Suspend this in a doorway or from a hook in the ceiling and begin it swinging
Electromotive Force: (emf) A force which derives the electric current is known as electromotive force. OR The energy needed to drive the charge around the circuit is know
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
The greenhouse effect is significant not only on Earth but also on Venus and Mars. The following table summarizes the following basic observations: (A) Using Stefan's equa
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd