The quantum hypothesis was originated by?

a)Einstein
b)Bohr
c)Planck
d)Rutherford


c

Physics & Space Science

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The study of the behavior of atoms and atomic particles is referred to as:

A) quantum mechanics. B) thermodynamics. C) the electromagnetic theory. D) theory of computations.

Physics & Space Science

Mass on a Spring: A 2.0-kg block on a frictionless table is connected to two springs whose opposite ends are fixed to walls, as shown in the figure. The springs have force constants (spring constants) k1 and k2. What is the oscillation angular frequency of the block if k1 = 7.6N/m and k2 = 5.0 N/m?

A. 2.5 rad/s B. 3.5 rad/s C. 0.40 rad/s D. 0.56 rad/s

Physics & Space Science

Why do nuclear fusion reactions only take place in the interior of a star?

a. The magnetic fields are strongest there. b. The temperature is the hottest in the center. c. The density of material is very high in the center. d. The temperature is the hottest in the center and the density of material is very high in the center. e. FALSE; Nuclear fusion reactions can take place in the core and corona where temperatures are high enough.

Physics & Space Science

Estimate the heat loss per unit area of a vertical south-facing wall of a large office building when the air temperature is -10ºF and the wall temperature is 5ºF.

What will be an ideal response?

Physics & Space Science