Water flowing in a stream erodes through abrasion, saltation, traction of material along the river bed etc, cutting down into the ground mostly just below it, creating a V shaped valley.
Ice in glaciers scours its way through the rock material beanth it. Because of this bulldozer kind of effect, it creates a U shaped valley.
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Answer:</h3>
24860 N
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Explanation:</h3>
From the question;
- Mechanical advantage is 0.0893
- Output force is 2220 Newtons
We are required to determine the input force;
- We know that mechanical advantage is the ratio of output force to input force.
- That is; M.A. = Output force ÷ Input force
- Rearranging the formula;
Input force = Output force ÷ M.A.
Therefore;
Input force = 2220 N ÷ 0.0893
= 24860 N
Hence, the input force is 24860 N
Unlike other kinds of liquids volatile liquids<span> evaporate rapidly at a relatively low temperature. </span><span />
Answer:
A force that objects exert, stopping solid objects from passing through each other aka contact.
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Answer: Change in velocity: -10 m/s, acceleration=-2.5m/s
Explanation:
The question in english is written below:
The end of a robotic arm moves to the right at 8m s. Four seconds later it moves to the left at 2m/s. What is its change in velocity and what is its change in acceleration?
We have the following data:
Initial Velocity of the robotic arm: (to the right)
Final Velocity of the robotic arm: (to the left)
Variation in time:
Firstly we have to calculate the change in velocity , which is given by the following equation:
This means the resultant velocity is to the left
Now, we can find the acceleration , given by:
This means the acceleration is also to the left, however its magnitude is always positive: