Society increasingly requires technical skills/problem-solving/applied math, and physics
as the most fundamental of sciences is the base for all other fields.   At the same time, the paucity
of majors is making a number of institutions close/merge or think of closing/merging departments.
Merging disparate disciplines into one department likely makes it difficult to concentrate on quality of
research and teaching in any one discipline.

Small Ain't All - U. Southern Maine, Inside Higher Ed, 2013 Oct 3

Physics Depts Face Axe at Seven Texas Universities, APS, 2011 Oct

U Wisconsin-Oshkosh Physics Dept to Merge with UW-Fox Valley, UW-Fond du Lac, UW-Oshkosh, Summer 2018

Position of UNC-Wilmington Geology on Proposed  Merger with Physics and Physical Oceanography,
UNC-Wilmington Faculty Senate notes, 2011-12

U Tennessee-Chattanooga, Merger of Physics & Chemistry in 2015, U Tennessee-Chattanooga

Goucher College, Baltimore MD, Inside Higher Ed (also Washington Post, Baltimore Sun), 2018 Aug 17

Laurentian Univ., Sudbury ON (both BS and MS programs, also Math BS program), Canada, CBC, 2021 Apr 9

Here is a sample of selected other merged physics+other discipline (chemistry, engineering, math)
departments in medium to large colleges/universities.  It is not intended to be complete.

Indiana State, Western Carolina, McNeese St, Alabama A&M, Georgia College, Coastal Carolina, Chicago St,
U Tennessee-Martin, Troy U, Morehead St., Grambling, U Wisconsin-Parkside, Austin-Peay, Murray St,
College of Staten Island, Stephen F. Austin U, Shawnee St. (OH), Eastern KY
Northern KY, Bellarmine U.