Theoretical Physics, Expert Solutions for College & Masters

The majority of Physics equations are not overly complex since they are based on questions that are either related to some theory or focus on a specific experiment. You will find a plethora of answers that will help you understand the main concepts from college physics to more complex engineering tasks that are quite specific. If you are dealing with equations, the solutions will let you compare things to what you have and find an answer. There will also be questions that are more verbal in nature, meaning that they go beyond the formulas, so ensure to check them, too!

Physics

What happens to the force of attraction when:
1. Distance is doubled
2. Masses are doubled
3. Distance is reduced by half ?

How to graph $y = - 2 \sin 2 x$ ?

How to write a variable expression for the word phrase "four times a number"?

A person observes fireworks displays from the safe distance of 0.750 meters. Assuming that the sound travels at 340 meters per second in air. What is the time between the person seeing the fireworks and hearing the explosion?

The more the space between the particles of a substance, more is the force of attraction between them. True or False

Two objects A and B of the same temperature are connected through a pipe. The system is said to be in thermal equilibrium, since there is no heat transfer between them.
A. Thermal Equilibrium
B. False

The laws of reflection hold good for:
A)Plane mirror only;
B)Concave mirror only;
C)Convex mirror only;
D)All mirrors irrespective of their shapes

Which of the following is an example of negative acceleration?
A. Rocket landing
B. A ball thrown upwards
C. Hitting a ball on the wall
D. Bunjee jumping

Define load and effort.

Explain the energy transformations in television?

Calculate the recoil velocity of a gun having mass equal to 5 kg, if a bullet of 25 g acquires the velocity of $500 m s^{- 1}$ after firing from the gun.
A. $25 m s^{- 1}$
B. $2.5 m s^{- 1}$
C. $10 m s^{- 1}$
D. $5 m s^{- 1}$

What causes gravity?

What happens to air temperature as altitude increases? And why?

What is a.m.u? Express 1 a.m.u. in MeV.

Can you listen the sound of a supernova explosion taking place in outer space? Why?

Which of the following charecteristics of metals can not be explained by Electron sea model of metals?
Hardness
Malleability
Electrical conductivity
Sonorousness

(a) What is an electric current? What makes an electric current flow in a wire? (b) Define the unit of electric current (or Define ampere).

What are the characteristics of atoms of elements?

What are the three conditions of Rolle’s theorem?

College Physics Questions and Answers