1. the change in position of an object from start to finish, a vector quantity . . . . .<em> displacement</em>
2. a portion of space that contains a value for a measurable quantity at every point in space . . . . .<em> field </em>
3. speed = (distance) / <em>(time to cover the distance)</em>
4. the length of the entire path an object travels from start to finish . . . . . <em>distance</em>
5. a measurement that has both magnitude and direction . . . . . <em>vector</em>
6. a change in displacement with respect to time . . . . .<em> velocity</em>
7. a mental or physical construct or description that describes a physical phenomenon . . . . . <em>model</em>
8. a change in velocity with respect to time . . . . . <em>acceleration</em>
9. a measurement that only expresses magnitude, such as time, temperature, distance, and speed . . . . . <em>scalar</em>
10. objects that are thrown or launched in the air and are subject to gravity . . . . . <em>projectile</em>
Answer:
Explanation:
Time elapsed on Earth 
= 12 years
Time elapsed on board the ship
= 9.2 years
now r= 
= 12/9.2= 1.3043
v= 
therefore distance L= 
putting value we get
=
=
=
Answer:
Both its temperature and its thermal energy will increase.
Explanation:
Objects are made up of particles. For example, water is made up of water molecules. The kinetic energy of a particle of mass 
and velocity 
is equal to 
,
- The thermal energy of an object measures the total kinetic energy of all its particles.
- On the other hand, the temperature of that object measures the average kinetic energy of all these particles.
Water in that pot gains energy when the pot is heated. That would increase the total kinetic energy of these water molecules.
What about temperature? Assume that the number of water particles in the pot stays the same- In other words, assume that water in the pot does not evaporate. As the total kinetic energy of these water molecules increase, their average kinetic energy would also increase. As a result, it would appear that the temperature of water in that pot has increased.
40 miles at 20 mph takes 2 hours
180 miles at 60 mph takes 3 hours
<span>Average speed = Total distance / Total time </span>
<span>= (40 + 180) / (2 + 3) </span>
= 220 / 5
= 44
<span>The correct answer is 44 m/s</span>
The masses of the children may not be taken into account since these are towards the ground and directly affecting the bear. The net force is the difference of the forces since they are acting on opposite sides. The magnitude of this net force is equal to 2N and the sign is to where the greater force is from. Therefore, the force is directed towards the left.
