Jim halves the distance between himself and a sound source. What is the change of decibels of the sound he hears?

Jenny wanted to make 3 molecules of a substance made with aluminum and oxygen. How many aluminum and oxygen atoms will she need?

Which would you use with a circuit to determine if a magnet was moving in close proximity to the circuit? - galvanometer - electronic balance - thermometer

A block of mass 0.2 Kg, initially moving with a velocity of 10 m/s, slides up a curved ramp to a stop 10 m above its original level. a) Draw free body diagrams of the block at the original level and also on the ramp.

If the magnitude of the resultant force acting on the bracket is to be 440 n directed along the positive u axis, determine the magnitude of f

One way or measuring the amount of energy released by an earthquake is the Richter scale. Earth increase of one unit on the Richter scale shows a 10 - fold increase on the strength of the earthquake.

Why do negative particles move more easily than positive particles in an atom?

What countries will see the solar eclipse?

Water is a compound. O A. True B. False

How do air quality scientists ensure the air is cleaned? What steps do they take?

Is a mirrors surface opaque or transparent or translucent?