River basin characteristics:
- tributaries
- area of land
- precipitation collects
- water drainage
- flowing water
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100 Joules have been used to roll the object up the ramp, but only 90 Joules were actually needed to lift the object, this means that 10 Joules have been wasted in the form of heat due to the friction between the object and the ramp, and this corresponds to

so, 10 % of the energy.
To solve this problem we use the general kinetic equations.
We need to know the time it takes for the car to reach 130 meters.
In this way we have to:

Where
= initial position
= initial velocity
= acceleration
= time
= position as a function of time

.
We use the quadratic formula to solve the equation.

t = 6.63 s and t = -17.1 s
We take the positive solution. This means that the car takes 6.63 s to reach 130 meters.
Then we use the following equation to find the final velocity:

Where:
= final speed
The final speed of the car is 27.25 m/s
Answer:
Summarized
Explanation:
Among the many hypotheses proposed for the origin of the moon the four main are summarized as
the fission hypotheses in which moon was once a part of earth but got separated due to collision. The second hypotheses is that the moon formed along with the Earth but independently.Moon was formed else where in the solar system and got captured by the Earth's gravitational pull. The newer giant impact hypotheses suggest that a mars sized object grazed Earth, Ejecting material from both Earth and itself, that material condensed to form moon.
Answer:
The acceleration of the object is 
Explanation:
we know that
The acceleration is the change in the velocity, divided by the time
Let
v -----> the change in the velocity in m/sec
t ----> the time in sec

we have that


substitute


substitute in the formula

therefore
The acceleration of the object is 
Is negative because is a deceleration