A bag of books took 3 minutes to move. You did 12,900 J of work. How much power was required to move the bag?

Which is the balanced equation for S8 + O2 → SO2? S8 + O16 → 8SO2 S8 + O2 → S8 + O2 S8 + O2 → S8O2 S8 + 8O2 → 8SO2

Why is it inportant for scientists all over the world to use the same system of measurement

Sometimes students are taught that "air expands as it is heated". And sometimes they are taught that "as air expands it cools". Under what conditions could the first statement be true? Under what conditions could the second statement be true?

Heat transfer within a fluid takes place by a. convection currents. b. radiation. c. conduction. d. density. I think it's A

A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff. How high was the cliff (rounded to the nearest tenth of a meter) ?

When the shape of the moon that we see gets larger?

The period of a 440 Hertz sound wave is __ seconds. 1/440 1/220 220 440

Match the term to the correct description. ~A type of circuit where part of the loop is broken. ~The flow of electrons. ~A loop that creates a pathway for electricity to follow. ~A type of circuit with only one path for the electricity to follow.

What is the mass of an object that is accelerating at 10 m/s^2 when a force of 2,386 N is exerted

According to the U. S. Green Building Council, what percentage of the world's energy use and greenhouse gas emissions can be attributed to buildings?