Be Master in Physics: Expert Solutions & Tips

Physics represents one of the most interesting scientific disciplines that are explored not only by the engineers or those that design civil objects and offer certain services. If you are stuck with equations or have specific questions, you should start by browsing through the advanced physics answer. You can approach the posts as the Physics equation solver to receive free help as you can compare what you already have with the posts that are related to your subject or objectives. There are also atomic physics questions that have been resolved where the knowledge of Physics comes first.

Physics

What is the si base unit of force

Which of the following statement is wrong
Infrared photon has more energy than the photon of visible light
Photographic plates are sensitive to ultraviolet rays
Photographic plates can be made sensitive to infrared rays
Infrared rays are invisible but can cast shadows like visible light rays

How to calculate modulation?

Calculate the wavelength of a sound wave whose frequency is $220 Hz$ and speed is $440 m / s$ in a given medium

Why does the metallic pan used for cooking has a plastic or wooden handle?
Plastic and wood are good conductor of heat
Metal is a bad conductor of heat
Plastic and wood handles are light weight
Plastic and wood are bad conductors of heat

The magnification produced by a lens is m = - 1.5. What are the characteristics of the image formed?
A)Real, inverted and diminished;
B)Real, inverted and magnified;
C)Virtual, erect and magnified;
D)Virtual, erect and diminished

Why does steam at 100 degrees celsius cause more severe burns than boiling water at 100 degrees celsius ?

An electromagnetic wave has an electric field given by the expression (in Cartesian co-ordinates) : $\vec{E} (x, t) = 6.0 \cos (1.4 \times 10^{7} x - 3.43 \times 10^{15} t) \hat{z}$ . What is the direction of the magnetic field at time t = 0 and position x = 0 ?
A. -x
B. +x
C. -y
D. +y

What are the primary colors of light? Pigment?

What are surface waves ?

How to calculate the linear density of a string?

If i am sitting without doing anything, will i have potential energy in me? We will requore energy to do work. So what is that energy called that you use before producing kinetic energy? Will i have kinetic energy of i apply any kind of force (muscular, gravitational and so on)

The gravitational force of attraction between two objects is x. Keeping the masses of the objects unchanged, if the distance between the objects is halved, then the magnitude of gravitational force between them will become :
(a) x/4
(b) x/2
(c) 2x
(d) 4x

The small piston of a hydraulic lift has an area of $0.20 m^{2}$ . A car weighing $1.20 \times 10^{4} N$ sits on a rack mounted on the large piston. The large piston has an area of $0.90 m^{2}$ . How much force must be applied to the small piston in order to support the car?

A ball is thrown straight up. What is its velocity and acceleration at the top?

Gravity is a type of _____ force.
A. contact
B. non-contact
C. magnetic
D. frictional

A sled traveling at a speed of 3.0 $m s^{- 1}$ slows to a stop 4.0 m from the point where its passenger rolled off. What is the magnitude of the horizontal net force that slows the 110 N sled?

A car traveling at 7.0 m/s accelerates uniformly at $2.5 \frac{m}{s^{2}}$ to reach a speed of 12.0m/s. How long does it take for this acceleration to occur?

Master the Art of Physics: Comprehensive Examples and Expert Advice