What causes the change from day to night?

What is an alpha particle composed of? O A. Two protons and two neutrons O B. A positively charged positron O c. A negatively charged electron O D. Electromagnetic radiation

Where is the chart option found in the Excel application?

Some people refer to nuclear power as "clean energy." Why do they make this argument? Do you agree or disagree? Explain your answer.

Wich of the following is a contact force? a. - friction b.-magnetism c.-gravity d.-electricity

How is penicillin used? a to make bread rise b to kill protists that cause disease c to make cheese d to kill bacteria that cause disease

A 15.0 m long plane is inclined at 30.0 degrees. If the coefficient of friction is 0.426, what force is required to move a 40.0 kg mass from rest at the bottom on the plane to the top of the plane with a final velocity of 8.00 m/s?

In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

Why is the use of scientific names important in biology?

1) what is a calorie?

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.