If an electric train is travelling south, which way is the smoke going?

How do mass, temperature, and materials influence the amount of thermal energy that can be transferred to a substance?

On the periodic table, there are two numbers in the block for the element potassium, K: 19 and 39.098. What are the names of the numbers and what do they measure?

Explain why ice melts in a cup at room temperature, in terms of energy transfer and the second law of thermodynamics.

What are the atoms of an element that contains 48 protons in the nucleus

Newton ovserved the action of the prism on white light and on red light because

Describe the factors that form deep currents

A comet is cruising through the solar system at a speed of 50000 kilometers per hour for 4 hours time. What is the total distance traveled by the comet during this time in kilometers, miles, and light years?

A gas in a closed container is heated with 12J of energy, causing the lid of the container to rise 3m with 5N of force. What is the total change in energy?

What are illuminated objects?

During one year a population of blue jays has zero population growth. which must be true about the blue jay population at the end of the year compared to the beginning of the year?