A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller

coaster? (Formula: PE = mgh)

800 kg

7.840 kg

8,000 kg

78,400 kg

According to "Past Climate Changes on Earth," what changes to the atmosphere caused temperatures to increase, making the Eocene such a warm time in Earth's history?

Multiple select The common elements of all plants and living organisms are: nitrogen hydrogen sodium carbon oxygen

What does metabolic rate mean?

What variations beside color can you think of that make a difference in a plant survival?

How are the humanities and social sciences necessary for career success?

During which trimester is the fetus most susceptible to the detrimental effects of alcohol on its development? a. first b. second c. third d. risk is equal during all stages of development.

What are some structural explanation for why animal and plant cells differ in response to changes in the extracellular space?

Which teeth are used for tearing food apart and are obvious in meat-eating animals?

If bluefish contains 0.336 ppm of mercury (that is, 0.336 oz of mercury per 1 * 10 6 oz of fish), how many ounces of mercury would a pregnant woman consume in a month if she ate the maximum recommended amount of bluefish?

Choose the best description of an allele