What affect does mass have on the force of gravity

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

At what time will the interfering waves have an amplitudeof zero?

Why are nonmetals more likely to react with eachother by sharing electrons