PHYSICS HIGH SCHOOL

A car travels 30 km north in 25 min. and 40 km east in 35 min. What is the total distance traveled?10 km
50 km
70 km
cannot be determined

Answers

Answer 1
Answer:

Answer:

The answer is 70 km

Explanation:

Firstly, there are few facts that we have to know:

  1. The car travels northward and then eastward, so both direction are perpendicular.
  2. It doesn't matter the total time, because we already know the total distance in every direction.
  3. The question is about distance, NOT displacement. I have attached an image that shows the difference between both concepts.

Finally, the first 25 min the car traveled in total 30 km and after that, the car traveled in total 40 km during 35 min. So, the total distance is:

30+40=70 km.
Answer 2
Answer: Correct answer is 70 KM.

Related Questions

Choose the best answer for each situation. A scientist with the EPA examining water for contamination writes down that there was an iridescent sheen on the surface of the water. What type of data did the scientist record?
Which of the following families contains elements that will not form compounds?
A student performs an activity using a sheet of paper, a magnet, and a steel ball. The image shows the setup. The student observes that the steel ball sticks to the magnet even though, the paper is between them. Which factor leads to the attraction of the ball to the magnet. A. The magnet exerts a force on the ball. B. The magnet attracts paper, which pulls the ball. C. The paper exerts a force on the ball, Which pulls the ball towards the magnet. D. The size of the ball attracts to the ball towards the magnet.​
What is the distance traveled by an object that moves with an average speed of 6.0 meters per second for 8.0 seconds
When light bends as it enters a different medium the process is known as what?

Like magnetic poles will repel each other, while opposite magnetic poles will attract each other true or false

Answers

The answer is True because Magnetic poles act like charges, they attract oppisites  and repel 

What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? Question 15 options: A. The number of protons and neutrons B. The number of electrons only C. The number of protons and electrons D. The number of neutrons and electrons

Answers

Answer;

B. the number of protons and neutrons

Explanation;

  • Nuclear reactions involve a change in the nucleus of an atom, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei.
  • Therefore the parts of an atom that can change during a nuclear reaction but can not change during a chemical reaction is the number of protons and neutrons that are found in the nucleus.
Neutrons and protons cannot be removed from nucleus from chemical reactions because they are strongly held together but nuclear reactions are strong enough to separate them. Hence option A is correct.

The graph shows how the distance an object traveled changed over time. Which statement accurately summarizes the data from this graph?



A.
The object is decelerating between points B and C because the line is horizontal.

B.
The object is at rest between points B and C because the distance has not changed.

C.
The object traveled the greatest distance between points C and D because that line has the greatest slope.

D.
The object traveled the shortest distance between points A and B because A is 1.5 units from B.

Answers

The right answer for the question that is being asked and shown above is that: "C. The object traveled the greatest distance between points C and D because that line has the greatest slope." The statement that accurately summarizes the data from this graph is that the object traveled the greatest distance between points C and D because that line has the greatest slope.

A mass of 8 kg. moves at a rate of 14.3m/ sec. what is the KE developed by the mass

Answers

KE = 0.5 m v^2
= 0.5 * 8 * (14.3)^2
KE = 817.96 joule

Which is a chemical change

Answers

a chemical change is a any change that results in the formation of new substances

Many scientists believe that the current period of global warming is related to increased levels of what?

Answers

In the question, "Many scientists believe that the current period of global warming is related to increased levels of what?" The correct answer is carbon dioxide. Global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants."
Other Questions
Air pollution is an example of a. The underground economy. B. An external shock. C. A nonmarket activity. D. A negative externality.
Which of the following bodies has a brightness that surpasses Venus’? My options are Jupiter, Mars, the stars, and the Moon. Jupiter and mars are obviously out and Venus is brighter than all the stars in the sky (besides the sun lol) so it would be the moon right? just a lil confused. btw i'm not sure what subject to post this in since there's no astronomy subject.
Two objects, Object A and Object B, need to be identified. Object A's index of refraction is determined to be 1.77, and Object B's index of refraction is determined to be 1.333. Knowing this information, which of the following must be true? A. Light can pass through Object A faster than it can pass through Object B.B. The optical density of Object A is lower than the optical density of Object B. C. Light can pass through Object B faster than it can pass through Object A. D. The optical density of Object B is higher than the optical density of Object A.
How to generate electricity from biogas?