Estimate how many times farther away the Hercules cluster is than the Virgo Cluster. Show how you made your estimate. Be sure and measure at least five galaxies in each cluster. Avoid odd looking galaxies.

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

In what direction does the medium move relative to the direction of the wave? explain.

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