What does kepler's first law state?

Sound wave A delivers 2 J of energy in 2 s. Sound wave B delivers 10 J of energy in 5 s. Sound wave C delivers 2 mJ of energy in 1 ms. Rank in order, from largest to smallest, the sound powers of Pa, Pb, Pc of these three waves.

A girl is bouncing on a trampoline where is her gravitational potential energy a maximum and where is her kinetic energy maximum

If atoms of a halogen nonmetal (Group 17) gain one electron, how many valence electrons will the atoms then have? 0 2 8 7

When the moon is directly opposite the sun in the sky, its phase is?

6. Narcotics are illegal drugs A. O True B. O False

Communicate is 25 a multiple of 2 or 5? how do you know?

When a ball is dropped it is easy to see that earth exerts a force on it. why cant you tell that the ball exerts a force on it. why can't you tell the ball exerts a force on Earth

What does it mean when a plane is perpendicular to the x-axis?

If the weight of an object that is submerged in a fluid is 10 N and the buoyant force on it is 20 N, what will happen to the object?|

A switch in an electric circuit controls the flow of electrons in the circuit. True O False