a steel block has a mass of 40g. it is in the form of a cube. each edge is 1.74cm long. calculate the density

Thorium-229 is a highly radioactive isotope used in the treatment of certain cancers. Use the chart to determine how much thorium would remain after 7,340 years if a sample began at 20 pounds of pure Th-229.

Where are the youngest rocks found on this geologic map?

What type of wave is sound? light pressure electromagnetic gamma

If a third-class lever has a mechanical advantage of 5, what does that mean?

In a longitudinal wave, amplitude can be measured from the distance between high pressure areas of the wave called

A cannon fired horizontally at 20 m/s from the top of a cliff lands 80m away. how tall is the cliff

Who is galileo galilei

an athlete whirls a 7.00 kg hammer tied to the end of a 1.3 m chain in a horizontal circle the hammer moves at the rate of 1.0 rev/s what is the centripetal acceleration of the hammer

Relaying a message from a membrane receptor to a molecule that performs a specific function within a cell occurs when

Ultrasound consists of sound at frequencies most people can hear?