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Afina-wow [57]
3 years ago
15

Describing the motion of an object can be difficult to do and using graphs help make motion easier to understand. Motion is a ch

ange in position measured by distance and time. Speed tells us the rate at which an object moves. Speed graphs are distance-time graphs; sometimes people label them as position-time graphs as well. Time is plotted on the X-axis and distance or position on the Y-axis of a line graph.
A distance-time graph tells us how far an object has moved with time.
• The steeper the graph, the faster the motion.
• A horizontal line means the object is not changing its position. It is not moving, and it is at rest.
• A downward sloping line means the object is returning to the start.

Use the text and the graphs above to choose all of the correct answers concerning speed?

In both graphs, speed will be measured in meters/second.
In graph A, the object travelled a distance of 40 meters in 4 seconds
The total distance travelled by the object in graph B is greater than the object in graph A.
In graph B, the object is at rest for 5 seconds.
The object in graph B was moving at a greater speed than the object in graph A

Physics
2 answers:
olga_2 [115]3 years ago
7 0

In both graphs, speed will be measured in meters/second.

In graph A, the object travelled a distance of 40 meters in 4 seconds

In graph B, the object is at rest for 5 seconds.

These are the correct answers

rewona [7]3 years ago
4 0

Answer:

Explanation:

1. In both graphs, speed is measured in meters/ second. The time measured in seconds is plotted on the X-axis while the distance measured in meters is plotted on the Y-axis.

2. Looking at the graph, you could identify the distance of 40 meters on the Y-axis and trace it down to time at 4 seconds on the X-axis.

3. The total distance travelled by the object in graph A is greater than the total distance travelled by the object in graph B. Graph B has a total distance of 25 m while graph A has a total distance of 50 m.

4. In graph B, the object is at rest at 5 seconds. From 5 seconds, it maintained a horizontal line indicating that it was static.

5. Graph A was moving at a greater speed than Graph B. Graph A had a speed of 10 m/s while Graph B had a speed of 5 m/s.

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a. burning of fossil fuel

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The major contributor of greenhouse gases is the burning of fossil fuels. Carbon dioxides are released into the atmosphere and leads to global warming and climatic changes per time

6 0
3 years ago
Racing cars driven by chris and kelly are side by side at the start of a race. the table shows the velocities of each car (in mi
Mamont248 [21]

Solution

distance travelled by Chris

\Delta t=\frac{1}{3600}hr.

X_{c}= [(\frac{21+0}{2})+(\frac{33+21}{2})+(\frac{55+47}{2})+(\frac{63+55}{2})+(\frac{70+63}{2})+(\frac{76+70}{2})+(\frac{82+76}{2})+(\frac{87+82}{2})+(\frac{91+87}{2})]\times\frac{1}{3600}

=\frac{579.5}{3600}=0.161miles

Kelly,

\Delta t=\frac{1}{3600}hr.

X_{k}=[(\frac{24+0}{2})+(\frac{3+24}{2})+(\frac{55+39}{2})+(\frac{62+55}{2})+(\frac{71+62}{2})+(\frac{79+71}{2})+(\frac{85+79}{2})+(\frac{85+92}{2})+(\frac{99+92}{2})+(\frac{103+99}{2})]\times\frac{1}{3600}

=\frac{657.5}{3600}

\Delta X=X_{k}-X_{C}=0.021miles

4 0
3 years ago
Blocks A and B are identical metal blocks. Initially block A is neutral, and block B has a net charge of 7.0 nC. Using insulatin
maxonik [38]

Answer:

Block A will have a final charge of 3.5nC.

Explanation:

This is because at the point of contact with Block B, which is electrically positive, the electrons in Block A will be attracted to the excess 'unpaired' protons in block B. Hence, the electrons will flow into Block B causing unpaired protons to remain in Block A.

This process is called Charging by Conduction.

This charging process will continue until the charges are evenly distributed between both objects.

In case you're wondering, "<em>how's all this possible within a few seconds</em>?", remember that electrons travel very fast and so, this process is a rather rapid one.

6 0
3 years ago
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ipn [44]

Answer:

165 degrees F (high)

Explanation:

to destroy the most heat pathogens found in raw poultry

3 0
1 year ago
La masa de un camión es de
Nutka1998 [239]

Answer:

45000 kg and 45 tons  

Explanation:

The expression in kilograms and tons is shown below;

As we know that

1 gr is 0.001 kg

So, 45000000 = 45,000 kg

And,

1 kg = 0.001 tons  

So, 45000 kg = 45 tons    

Therefore the same would be considered

7 0
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