15. Describe how the speed of sound would change as it first travels through a

Solid:

Liquid:

Gas:

(2pts)

How are speed and velocity different? Question 9 options: Speed is constant and velocity can change. Speed is a vector and velocity is a scalar. Velocity tells you how fast and gives a direction. Speed only tells how fast.

A cold beer initially at 35ºF warms up to 40ºF in 3 min while sitting in a room of temperature 70ºF. How warm will the beer be if left out for 20 min

How deep is the outer core beneath the surface

Suggest one way to detect the oxygen level in a safer way. give one reason for your suggestion.

Chris operates a small sign-making business. He finds that if he charges x dollars for each sign, he sells 44-x signs per week. What is the smallest number of signs that he can sell to have an income of $420 in one week?

January 1st 37°F January 7th 48°F January 14th 52°F January 18th 51°F January 21st 45°F January 25th 41°F January 31st 55°F When looking at a data set of numbers, the mean is the average. Look at the table above.

The vector quantity that defines the distance and direction between two positions.

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.