HELP A. not enough information

B. only volume (cm3) is the independent variable

C. the slope of the trend line

D. both volume (cm3) and mass (grams) are independent variables

E. only mass (grams) is the independent variable

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question