Answer:
10.2 metres
Explanation:
Given that a ball is projected at an initial speed of 20.0 meter per second making an angle of 45.0 with horizontal. What is the maximum height it will reach?
Solution
To get the maximum height, let us use the formula
V^2 = U^2 sin^2ø - 2gH
At maximum height V = 0
U^2 sin^2ø = 2gH
Substitute all the parameters into the formula
20^2 ( sin 45 )^2 = 2 × 9.8 × H
400 × 0.5 = 19.6 H
Make H the subject of formula
H = 200 / 19.6
H = 10.204 metres.
Therefore, the maximum height reached by the projected ball is 10.2 metres.
Answer: It is increased to exert the pressure off the bywalls and on large area (brainliest pls)
Explanation: ...
Answer:
Between 100 and 120 million years old
Explanation:
The principle of superposition refers to one of the geological principles used in the determining the relative depositional history or sequence of rock stratas in geologic stratigraphic study. The superposition principle explains that rocks deposited in stratas with the oldest rock layer being at the base and the youngest at the topmost layer. Hence using this principle, we can conclude that ; Rock layer M lies in between layer T and R ; thus M is younger than T and older than R. Therefore, the age of M will be between the range of age T and R.
Answer:
Is the equation for Ec=1/2 m(Dv)^2 where Dv is the difference between the angular speed & the areolar speed?
Hello,
Average speed is total distance divided by total time. From the problem, our total distance is given as 500 kilometers and given time is 5 hours. Therefore, the average speed is:
Therefore, the average speed is 100 km/h. Please let me know if you have any questions!
