The gravitational force between the Sun (mass = 1. 99 × 1030 kg) and Mercury (mass = 3. 30 × 1023 kg) is 8. 99 × 1021 N. How far is Mercury from the Sun? 6. 98 × 1010 km 6. 98 × 107 km 4. 87 × 1013 km 4. 87 × 1024 km.

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.

iron would move it is magnetic there is a mag field around the current in the wire

resonant frequency

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000