Question 2 of 10 Which of the following statements is true of an isolated system?
A. The system has energy but no matter.
B. Energy separates the matter in the system from outside matter.
C. The matter within the system does not interact with matter outside the system
D. The matter within the system does not interact with other matter in the system

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.