When a fluid is heated, what changes occur?

It becomes less dense and begins to rise.

It becomes more dense and begins to rise.

It becomes less dense and begins to sink.

It becomes more dense and begins to sink.

A hunter aims directly at a target (on the same level) 75.0 m away. (a) If the bullet leaves the gun at a speed of 180 m/s, by how much will it miss the target? (b) at what angle should the gun be aimed so as to hit the target?

How much time does it take for tweety's bird cage to hit the ground after it was dropped if it reached a velocity of 22 meters per second right before impact?

A good model of the solar system to present to elementary is the Ptolemaic model. A) true B) false

Odina walked down the hall at school from the cafeteria to the band room, a distance of 100.0 m. A class of physics students recorded and graphed her position every 2.0 s, noting that she moved 2.6 m every 2.0 s.

If a car crashes into a wall, the wall puts a force on the car. The car puts an equal force on the wall. What does each force do?

A question about a moral issue is answered by examining facts rather than opinions. is generally considered a scientific question. cannot be answered with scientific methods. cannot be debated through discussion.

Who is most likely to have a physiological age that is much younger than his or her actual age?

Inflammation happens when the mucous membranes cannot stop a pathogen. True False

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

The act, process or state of the change in place or position oa a body with respect to time and relative to the observer is said to be : - 1. Rest 2. Stationary 3. Motion 4. None of the above