A rocket is launched at an angle of 70° above the horizontal from rest. It moves for 30s along this path with an acceleration of 45m/s2. After this time, the engines fail and the rocket proceeds to move as a free body.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

higher potential

explanation:

because it is in a high speed so it must move into a of high potential