Which of the following is a heterogeneous mixture.

A) salt water

B) kool-aid

C) chicken noodle soup

D) sugar and water

The cell membrane allows gas and nutrients to enter in the cell. this is called

Which would best describe what occurs when a ball is thrown against a wall

Which makes a larger current: fast-moving electrons or slow-moving electrons? Why is this?

Mars, which has a radius of 3.4 * 106 m and a mass of 6.4 * 1023 kg, orbits the Sun, which has a mass of 2.0 * 1030 kg at a distance of 2.3 * 1011 m. Which is greater, the tangential speed of Mars's rotation or revolution?

What is the unit of G in the F=Gm1m2/r^2

What is the effect of a magnetic field on a stationary electric charge on a moving electric charge?

A ball is thrown upwards with an initial velocity of 25. o m/s, what is the velocity of the ball at 11.9 m from the ground?

Can rocks be weathered by wind and chemicals in the air

1. if you rub a neutral glass rod with silk, the silk acquires a negative charge. if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.

What's a scientific inquiry