If we have evidence that certain gases are harmful to our atmosphere, then why are we still using them?

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Explain what happens to the pitch of a cell phone ringing when the amplitude of a sound wave increases.

Which of the following is not a measurement taken by a radiosonde? A. atmospheric composition B. atmospheric pressure C. wind speed D. wind direction

A step-up transformer has 50 turns on its primary coil and 2000 turns on its secondary coil. The primary circuit is supplied with an effective AC voltage of 150 V. a. What is the voltage in the secondary circuit? b.

Why is energy needed to break chemical bonds

1. At one time, people thought that heat was a substance called

How are magnet'so magnetic force and magnetic field different

Ahmed saw all of these things as he walked to school this morning. Which one is an example of a force pushing downward toward the ground? A. A bird sat on a telephone wire. B. A woman moved her child from one place to another in a wagon. C.

What types of mediums are involved in the energy transfer

When two frequencies are added together, the beat frequency and the average frequency are an octave apart?