When a force acts (pushes or pulls) on an object, it changes the object's speed or direction (in other words, makes it accelerate). The bigger the force, the more the object accelerates. When a force acts on an object, there's an equal force (called a reaction) acting in the opposite direction.
Answer:
TRUE
Explanation:
It is TRUE that pedestrians, bicyclists and slow-moving vehicles are not allowed on expressways because expressways have minimum speed limit requirements that these travelers cannot reach. This minimum limit of speed varies country to country.
In America, the minimum speed limit <u>in Rural Areas is 40 mph (miles per hour) i.e. 65km/h</u> (kilometer per hour) while <u>in Urban Areas it is 55mph i.e. 90km/h</u> which cannot be met by pedestrians and by-cycles easily.
Answer: you can measure how hot something is in Celsius or Fahrenheit. The hotter something is, the more spaced out the molecules are.
A snowball picks up speed as it rolls down the mountain.<em> (D)</em>
Since the description includes acceleration ("picks up speed"), we know that the forces on the snowball must be unbalanced.
The answer is 2 and 3 because light bulbs dont produce uv rays and uv rays are very dangerous to people.