Why do scientists prefer the moment magnitude scale to the richter scale?

If it took you five seconds to move a rock 15 m using force of 150 N how much power did you need to use?

A rock is dropped from a height of 2.5 meters. What is it's velocity when it reaches the ground? 3.5 meters/second

Why do metals differ in specific heat? why is Al much higher than gold

What is the difference between transverse waves and longitudinal waves? A. both move perpendicularly to the direction of energy movement B.

Which atom is most likely to accept electrons to form an ionic bond? a. a mercury ion with a negative 2 charge b. a potassium ion with a negative 1 charge c. radon, a noble gas with 8 valence electrons d. sulfur, a nonmetal with 6 valence electrons

Olivia wants to find out whether a substance will fluoresce. She says she should put it in a microwave oven. Do you agree with her? Why or why not?

A skydier jumps out of a hovering helicopter so there is no forward velocity. what is the skydivers acceleration/11170085/84c6e0eb? utm_source=registration

A book of 500 leaves has a mass of 1kg if its thickness is 5cm what are the mass and thickness of each leaf

Why does a curve on a distance-time graph indicate acceleration? an increasing amount of time passes for each unit of distance a decreasing amount of time indicates a decreasing number of distance units an increasing distance is traveled during each

What would happen if you dropped two balls of different masses but equal shape and volume from a building?