+ 6.3 Quiz (B)
This test/quiz is accepting submissions until Friday, January 29, 2021 at 3:00 pm
Questions 1
Question 1 (1 point)
A roller coaster with a mass of 700 kg has 9000 J of kinetic energy. How fast is going (what is its velocity)?
a
12.85 m/s
b
6.4 m/s
С
5.1 m/s

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?