Acosmological redshift occurs because light waves coming from stars and galaxies become bluer as they travel away from us. true false

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

Convection currents are caused by differences in what two things?

Due in 40 explain in terms of frame of reference if you’re inside a moving train everything on the outside can seem to be moving