A long cylinder of diameter 20 cm is closed
at one end. A piston is located at the other
end of the cylinder, as shown in the
diagram. The piston is attached to a spring
with the spring constant 5.0 * 10' N/m.
W
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Piston
Piston
The cylinder is placed in water at 50 m
depth. What is the displacement of the
piston? Given: density of water = 1.0 x 10
kg/m and 9 = 9.8 m/s?

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?

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?