When the Egyptians noticed this celestial body rising before the Sun it indicated to them the coming of the Nile flood.

When white light is incident on a prism, which one of the resulting color components will have the lowest index of refraction? A. Green B. Yellow C. Orange D. Blue

The weight of a standard object defined as having a mass of exactly 2.9 kg is measured to be 28.449 n. in the same laboratory, a second object weights 48.7 n. what is the mass of the second object? answer in units of kg

What is the importance of iron to the health of human being

Which statement is most likely to be supported by objective data? a. in infancy, the color blue is associated with boys, and pink is associated with girls. b. when in doubt, punt; when certain, go for the goal on the fourth down. c.

Explain why a sewing needle can float on the surface a water in a glass

Which agent of weathering breaks down limestone statues?

A charged particle moves at 2.5 * 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 * 10-2 T. If the magnetic force is 7.5 * 10-2 N, what is the magnitude of the charge?

Earthquakes along the subduction zones near Sumatra and Chile are some of the strongest in the world.

What number is between 2000 and 2500

If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?