Block A is placed on a rough surface inclined at an angle θ
above the horizontal. A taut string connects block A
over a pulley to block B
, which hangs from the string, as shown below. The masses of blocks A
and B
are MA
and MB
, respectively. At time t=0
, block A
is sliding up the slope as block B
falls, and the blocks are both slowing down. Assume that the mass and friction of the pulley are negligible.

Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

If anyone who can me with this hw? i would really appreciate it