They use sound waves that bounce off walls, and other things back to them to feel where they are going.
Answer:
Temperature, density
Explanation:
Physical properties of a substance are those properties that do not change the chemical composition of the substance. There are two types of physical properties namely: intensive property and extensive property.
Intensive properties are those physical properties that does not depend on the sample size of the substance involved. Examples of intensive physical properties are temperature, density, boiling point. For example, the size or amount of a substance does not determine the the TEMPERATURE or BOILING POINT of the substance.
Answer:
Explanation:
Glass is much more likely to break on the cement floor compared to the carpeted floor. In case of cement change in velocity occurs at a faster rate compared to the carpeted floor, so deceleration is more on the cemented floor.
As the Carpeted floor is not rigid so it takes more time to stop the glass that is why chances of breaking are less on the carpeted floor.
Answer:
Because it is not as steep and helps it go up the same distance, although you travel farther.
Explanation:
Part a)
At t = 0 the position of the object is given as
At t = 2
so displacement of the object is given as
so average speed is given as
Part b)
instantaneous speed is given by
now at t= 0
at t = 1
at t = 2
Part c)
Average acceleration is given as
Part d)
Now for instantaneous acceleration
As we know that
at t = 0
at t = 1
now we have
At t = 2 we have
<em>so above is the instantaneous accelerations</em>