Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid

What is the speed of a wave on a string with a wavelength of 1.75 m and a frequency of 2.0 Hz

Calculate the average speed of an automobile that travels 60km east and then 80km north in two hours

There are many factors that influence the strength of an electromagnet. What could be done to make the electromagnet stronger?

two cars are travelling side by side down a straight road in opposite directions. both cars are travelling at a speed of 22 m/s. what is their relative speed

A 242-g block is pressed against a spring of force constant 1.62 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal.

Which of the following describes the flow of charges through a wire or a conductor?

What is the kinetic energy of a 2 kg snowball thrown through the air at 5 m/s?

A 5.00*105-kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large spring bumper at the end of its track. what is the force constant k of the spring

A moving object always has energy in its?

What is the volume of a box that is 12 cm long, 2 cm wide, and 3 cm high?