Answer:
profit because if the man sold them to africa hw must pay for it to send them to africa so it will voat him more.
Answer:
Explanation:
if they are selling potatoes based on its weight, then it depends on the acceleration due to gravity(g) in the region
If g in africa > russia, then he will make a profit, since weight will be more,
if its < russia, then he will make a loss, i dont know thier actual values so you will have to find that out on your own
In a simple machine, what does it mean :
i) If efficiency is said to be 65%.
What is one example of a scientific model?
Answer:
A scientific model represents objects, phenomena, and physical processes in a consistent and logical way.
Answer:
Models that clarify climate wonders can be utilized to anticipate climate.
Explanation:
All of these are very important parts of studying physics EXCEPT
1. describing the organization of the universe
2. understanding natural laws
3. memorizing complicated explanations
4. deducing and applying natural laws
Answer:
4. deducing and applying natural laws
Compare and contrast intensive and extensive physical properties, and give 3 examples of each.
Answer:
Intensive properties do not depend on the quantity of matter. Examples include density, state of matter, and temperature. Extensive properties do depend on sample size. Examples include volume, mass, and size.Intensive properties do not depend on the quantity of matter. Examples include density, state of matter, and temperature. Extensive properties do depend on sample size. Examples include volume, mass, and size.
Explanation:
A bus has velocity of 20 m/s towards east and another bus has velocity of 15 m/s in west direction . if they start to move from a point simultaneously, what distance do they cover in 2 minutes ? what will be their seperation ?
Help plss!!
Answer:
3.8 km
Explanation:
Eastern Side Bus
Velocity = 20m/s
Covers distance in 2 min (120sec) = 20×120 = 2400m = 2 km
Western Side Bus
Velocity = 15m/s
Covers distance in 2 min (120sec) = 15×120 = 1800m = 1.8 km
Separation Distance = 2+1.8 = 3.8 km
Why is it possible for railway tracks to buckle even though there are gaps in them?
These gaps which are of the order of a few millimeters, are provided to allow room for the rails to expand the rise in temperature due to the atmospheric temperature as well as the friction caused by running of train. All materials expand when heated and contract when cooled. The extent of expansion and contraction is quite low to be noticed by people or make much difference in most situations. However, since each section of the rail is very long, the expansion due to heating is significant, and unless space is provided for expansion of rails, the rails will bend to accommodate the increased length. This will make the railway unfit for running of trains.
Answer: the tracks will buckle under the force.
Explanation: Heat-related expansion places a lot of stress on the ties, ballasts, and rail anchors that keep the tracks fixed to the ground.
Mahiya and Mrinmoy are in a relay around a square field with each side of length 60m. First, Mahiya runs at a speed of 6 ms−1 for 60m to pass a baton to Mrinmoy. Then Mrinmoy runs 120m at 4ms−1 while Mahiya runs through the field to reach the other corner. Then Mrinmoy passes the baton. But Mahiya is now tired since she has been constantly running. So, she only runs at 3ms−1 for the final 60m. What is the average speed of the baton in ms−1?
The average speed of the baton can be determined by dividing the total distance travelled by the total time taken for that travelling.
[tex]Average\ Time = \frac{Total\ Distance}{Total\ Time}[/tex]
First, we will find the total distance, by adding the distances travelled by both Mahiya and Mrinmoy, while carrying the baton.
[tex]Total\ Distance = Distance\ Travelled\ by\ Mahiya\ to\ pass\ the\ baton\ to\ Mrinmoy\ +\ Distance\ Travelled\ by\ Mrinmoy\ to\ pass\ the\ baton\ to\ Mahiya\ +\ Final\ Distance\ Travelled\ by\\ Mahiya[/tex]Total Distance = 60 m + 120 m + 60 m = 240 m
Now, we will find the total time taken for this travelling. To find out the total time we will divide each distance travelled by the speed of the traveller during that distance:
[tex]Total\ Time = \frac{60\ m}{6\ m/s}+\frac{120\ m}{4\ m/s}+\frac{60\ m}{3\ m/s}\\\\Total\ Time = 10\ s\ +\ 30\ s\ +\ 20\ s[/tex]
Total Time = 60 s
Now, we finally find the average speed of the baton by using the formula:
[tex]Average\ Time = \frac{Total\ Distance}{Total\ Time}\\\\Average\ Time = \frac{240\ m}{60\ s}[/tex]
Average Speed = 4 ms⁻¹
Learn more about average speed here:
https://brainly.com/question/12322912?referrer=searchResults
PLEASE help with this!!! i'll give brainliest if right!!
