What is the time period and frequency of a sound wave if it completes 500 vibrations in 50 seconds

What properties are emergent properties of a substance and not properties of its individual particles?

The part of an atom that is outside the nucleus?

Explain Hardy-Weinberg equilibrium and why it is so important, especially since all of its assumptions seem so unrealistic and difficult to meet.

A bucket of water of mass 16.0kg is suspended by a rope wrapped around a windlass, that is a solid cylinder with diameter 0.350m with mass 11.4kg. The cylinder pivots on a frictionless axle through its center.

Which of the following types of research is conducted on multiple occasions over time?

When you look into a clear pond, a fish may appear to be in a different position than it actually is. What is this caused by? A. diffraction B. dispersion C. refraction D. reflection,

How long would it take to drive to alpha centauri (4.4 light-years away) ?

A type of fault where the hanging wall slides upward

How was dyslexia treated in the past and how is dyslexia treated today?

The work of Charles Kuen Kao is likely to have been most influenced by the work of which of the following scientists? A. Galileo Galilei B. Christian Doppler C. Sir Isaac Newton D. Ibn al-Haytham