A pendulum is made by suspending a solid circular disk from a pivot point that is at the edge of the disk with the plane of the disk lying in the vertical plane. The period of oscillation of the disk is T

If a disk with the same radius but a mass four times is great is suspended the same way, what will be its period of oscillation? A)

4T

B)

T/2

C)

2T

D)

T

E)

T/4


D

Physics & Space Science

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An aluminum cantilever beam of length L 5 0.65 m carries a distributed load, which includes its own weight, of intensity q/2 at A and q at B. The beam cross section has a width of 50 mm and height of 170 mm. Allowable bending stress is 95 MPa and allowable shear stress is 12 MPa. The permissible value of load intensity q is approximately:


(A) 110 kN/m
(B) 122 kN/m
(C) 130 kN/m
(D) 139 kN/m

Physics & Space Science

The statement that "the number of field lines passing through a surface is proportional to the net charge enclosed" is known as

A) Franklin's Law. B) The Law of Enclosure. C) Coulomb's Law. D) Gauss's Law. E) Faraday's Law.

Physics & Space Science

Discuss the population, size, and types of galaxies we find in our Local Group

What will be an ideal response?

Physics & Space Science

As space expands, everything in it is also getting bigger.

Answer the following statement true (T) or false (F)

Physics & Space Science