Story = A group of students perform an experiment to study motion. They place a frictionless track on a stack of books to form an inclined plane and set a motion sensor connected to a computer at the top as shown below. The students place a cart on the track and use the motion sensor to record its position and velocity as it moves down the track when released. 1. Which of the following change as the cart moves down the track?select all that applies

A Distance from the sensor

B Velocity

C Acceleration

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?