Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and then back to the post office. Which statement must be true about the two postal delivery workers? (1 point)
• They each travel a distance of 0 miles.
• They have the same velocity.
• They travel the same distance.
• They each have a displacement of 0 miles.
Yeah so the anonymously asking the bot questions is utterly useless, I got an 8/19. Wow, useless. Here are the answers since I'm useful.
Question 1: They each have a displacement of 0 miles.
Question 2: They have the same speed but different velocities.
Question 3: He is going faster and in a different direction during the first 10 minutes than in the last 10 minutes.
Question 4: The object remains still.
Question 5: A force applied in the opposite direction with the same magnitude at the same time.
Question 6: The force needed to lift a chair.
Question 7: Yes, this is an example of a force because a force is a push or pull.
Question 8: A ball accelerates as it rolls down a hill.
Question 9: A force acting in the direction opposite the object's motion is removed from the object.
Question 10: An unbalanced force stops your foot but does not act on the rest of your body.
Question 11: The bowler should choose a ball with less mass or throw the ball with more force.
Question 12: A baseball player swinging a bat and hitting a baseball, causing the bat to shatter.
Question 13: The hammer and the wall exert forces on each other that are equal in magnitude but in opposite directions.
Question 14: Essay question.
Question 15: Essay question.
Hope I was useful, have a nice day you guys, stay safe.
im posting the answers after i finsih these essay ones
dude you could atleast tell us a list of the answers after your done
The correct statement must be: They each have a displacement of 0 miles. This means that they end up back at the post office, which is their starting point, so their final position is the same as their initial position.
To determine which statement must be true about the two postal delivery workers, we need to understand the concepts of distance and displacement.
Distance refers to the total path traveled by an object, regardless of the direction. It is a scalar quantity and is always positive or zero.
Displacement, on the other hand, refers to the change in position of an object. It takes into account both the distance traveled and the direction. Displacement is a vector quantity and can be positive, negative, or zero.
In this scenario, both postal delivery workers start and end at the post office, which means their initial and final positions are the same. Therefore, we can determine the displacement by calculating the change in position between the start and end points.
Now, let's evaluate each statement:
1. They each travel a distance of 0 miles.
This statement cannot be true because the workers have to travel to the neighborhoods to deliver mail, so they would definitely cover a positive distance.
2. They have the same velocity.
Since velocity is a vector quantity that takes into account both the distance and direction of an object, we cannot conclude that they have the same velocity solely based on the given information about their routes.
3. They travel the same distance.
This statement must be true because both workers start and end at the post office. Therefore, they cover the same distance in total, regardless of the specific routes they take.
4. They each have a displacement of 0 miles.
This statement must also be true because both workers return to the post office, which means their displacement is zero. Displacement is the change in position, and since they end up at the same position they started from, the displacement is indeed zero.
Therefore, the correct statement is: They each have a displacement of 0 miles.
The statement that must be true about the two postal delivery workers is that they each have a displacement of 0 miles.
Matt is walking at 1.25 miles per hour to the east. Jaime is walking at 1.25 miles per hour to the south. Whigh statement describes the movement of Matt and Jaime? (1 point)
• They have different speeds and different velocities.
• They have the same speed and the same velocity.
• They have the same speed but different velocities.
• They have different speeds but the same velocity.
The correct statement that describes the movement of Matt and Jaime is: They have different speeds and different velocities.
Speed refers to how fast an object is moving and is a scalar quantity. In this case, both Matt and Jaime have the same speed of 1.25 miles per hour.
Velocity, on the other hand, takes into account both the speed and direction of an object's motion, making it a vector quantity. Matt is walking to the east, while Jaime is walking to the south. Since they are moving in different directions, their velocities are different.
Therefore, Matt and Jaime have different speeds and different velocities.
What does a horizontal line on a position-time graph indicate about the object? (1 point)
• The object has a position of zero.
• The object is accelerating.
• The object has a constant, nonzero velocity.
• The object remains still.
A horizontal line on a position-time graph indicates that the object has a constant, nonzero velocity.
In a position-time graph, the position is represented on the y-axis, and time is represented on the x-axis. A horizontal line indicates that the position of the object remains constant over time.
If the velocity is nonzero, it means that the object is moving at a constant speed in a particular direction. Therefore, a horizontal line on a position-time graph indicates that the object has a constant, nonzero velocity.