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 is the value of 200 lb in kilograms?

A 0.5 kg ball is thrown horizontally from point A with velocity V_A=2m/s. It strikes the smooth inclined plane and bounces. Take coefficient of restitution e =0.6 and g=10m/s^2The speed at which it bounces from the plane is...

North pole of a magnet will attract _____ of another magnet.
south pole
north pole
both north and south poles
neither north nor south pole

If the wavelength of a wave in a medium decreases, it's frequency
remains unchanged.
also decreases.
increases.

How much is $63 k g$ in pounds ?

Does spring balance measure weight or mass?

The position of an object moving along a line is given by $p (t) = 2 t^{3} - 2 t^{2} + 1$ . What is the speed of the object at $t = 3$ ?

Which element 's ionic radius smaller than its atomic radius?
Neon
Nitrogen
sodium
Sulphur

A point charge $q_{1} = - 5.8 μ C$ is held stationary at the origin. A second charge $q 2 = + 4.3 μ C$ moves from the point (0.26 m,0,0) to (0.38 m,0,0). Find the workdone by the electric force on $q_{2}$ .
A. −0.272 J
B. +0.272 J
C. −0.381 J
D. +0.381 J

Name the elements which have the smallest and the largest atom?

What is a rheostat?

What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?
A) 28
B) 56
C) 62
D) 90

___ is the process by which a gas changes into solid.
Evaporation
Deposition
Condensation
Melting

Sound waves with frequency smaller than 20 Hz are called:
ultrasound
infrasound
nanosound
minisound

Nitrogen exist as a _____________ at room temperature.
Monoatomic gas
Diatomic gas
Triatomic gas
None of the options are corect

What is the charge on an electron?

How does air exert pressure?

The following metal/s can be classified as poor conductor of electricity:
Mercury
Gold
Iron
Lead

Water flowing in a river has kinetic energy.
A. True
B. False

_______ is the number of waves that pass a certain point in a specific time. A. Wavelength B. Frequency C. Pitch D. Amplitude

College Physics Questions and Answers