Which of the following statements is false? Dissolving salt into water is an example of a mixture.
Dissolving salt into water is an example of a mixture.

The mass of one piece of paper is the same even after it is ripped in half and the 2 pieces are measured again.
The mass of one piece of paper is the same even after it is ripped in half and the 2 pieces are measured again.

Increasing the temperature of water to a boil is a physical change.
Increasing the temperature of water to a boil is a physical change.

The formation of a precipitate is the only way to see if a chemical change has occurred.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s