Answer:
Explanation:
Given that
Height = h
Radius = R
From energy conservation
At point B
The minimum speed to complete the the circle
So the kinetic energy at point B
Without falling off at the top (point B)
If a truck is travelling east on a straight road and travels 100 meters in 25s what is the truck's velocity?
1 answer:
Answer:
Velocity of the truck, v = 4 m/s
Explanation:
It is given that,
Distance covered by the truck, d = 100 m
Time taken by the truck, t = 25 s
Let v is the velocity of the truck. We know that the velocity is a vector quantity. Mathematically, it is given by :
v = 4 m/s
So, the velocity of the truck is 4 m/s. Hence, this is the required solution.
You might be interested in
Answer:
a) , b)
Explanation:
a) The final velocity of the 13.5 g coin is found by the Principle of Momentum Conservation:
The final velocity is:
b) The change in the kinetic energy of the 13.5 g coin is:
Answer:
True, check attachment for code
Explanation:
To convert java strings of text to upper or lower case, we can use and inbuilt methods To Uppercase and To lower case.
The first two lines of code will set up a String variable to hold the text "text to change", and then we print it out.
The third line sets of a second String variable called result.
The fourth line is where the conversion is done.
We can compare the string
We can compare one string to another. (When comparing, Java will use the hexadecimal values rather than the letters themselves.) For example, if we wanted to compare the word "Fat" with the word "App" to see which should come first, you can use an inbuilt string method called compareTo.
Check attachment for the code
