I will thank and give 5 stars to whoever answers!! 1: What is another word for satellite as explained in the first sentence?

2: What did the author use to signify the definition for a satellite in the first sentence?

3: Pick another place in the first sentence where the author does the same thing.

4: In the 4th paragraph, the author says "perhaps, one of these large planetesimals, perhaps the size of Mars, was traveling around the sun in an exaggerated elliptical orbit" What it the author referencing?

5: Describe what happened to the planetesimal after it crashed into the Earth.

6: What was the result of the "third and significant portion of the debris" from the crash described in paragraph 8? In your own words, describe how this happened.

7: Describe what happened to the other two portions of debris.

8:What can you conclude about the moon today with the statement, "It must have been a sight hanging up there maybe 30,000 km above Earth, rather than the 385,000 km distance we see today"?

9: What force causes two masses to be attracted to each other?

10: Why can't we feel the gravitation pull of an apple?

11: Explain how gravity affected the debris from the impact event so that the debris began to orbit the Earth.

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Aheat engine running backward is called a refrigerator if its purpose is to extract heat from a cold reservoir. the same engine running backward is called a heat pump if its purpose is to exhaust warm air into the hot reservoir. heat pumps are widely used for home heating. you can think of a heat pump as a refrigerator that is cooling the already cold outdoors and, with its exhaust heat qh, warming the indoors. perhaps this seems a little silly, but consider the following. electricity can be directly used to heat a home by passing an electric current through a heating coil. this is a direct, 100% conversion of work to heat. that is, 19.0 \rm kw of electric power (generated by doing work at the rate 19.0 kj/s at the power plant) produces heat energy inside the home at a rate of 19.0 kj/s. suppose that the neighbor's home has a heat pump with a coefficient of performance of 4.00, a realistic value. note: with a refrigerator, "what you get" is heat removed. but with a heat pump, "what you get" is heat delivered. so the coefficient of performance of a heat pump is k=qh/win. an average price for electricity is about 40 mj per dollar. a furnace or heat pump will run typically 200 hours per month during the winter. what does one month's heating cost in the home with a 16.0 kw electric heater? what does one month's heating cost in the home of a neighbor who uses a heat pump to provide the same amount of heating?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final