How do you find the number of neutrons

A toy train rolls around a horizontal 1.0-m-diameter track. the coefficient of rolling friction is 0.10. how long does it take the train to stop if it's released with an angular speed of 40 rpm?

The biosphere contains The oceans All plants and rocks All the earth All the living things

Como se encuentra el agua a una temperatura menor de 0ºC

Mike walked 450 m west. He then turned and walked 150 m to the east in 300 seconds. what was his velocity?

A 0.500 kg object is thrown vertically upward with an average applied force of 8.20 N by a student. The force is applied through a displacement of 1.50 m a. What is the average net force acting on the object? b.

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?

If many household substances classify as acids or bases what is the ph scale