Answer:
A. Refer to the figure.
B. The net force acting on the crate is

C. We should first find the acceleration of the crate using the following kinematics equation:

Mass of the crate can be found by Newton’s Second Law:
Without friction, the amount of work only depends on the final height,
and is not affected by the route used to get there.
If the ramp has no friction, then it has no effect on the total amount
of work done. The work to lift the load straight up is the same.
If the ramp has some friction, then it takes more work to use the ramp
than to lift the load straight up. Then the work to lift the load straight up
would be less than when the ramp is used.
Answer:
mars is a fourth planet of the sun and the second planet in the solar system
moon is a natural satellite of the earth it isthe fifth largest moon in the solar system
Limestone is a kind of Foliated Metamorphic rock.
The number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.
<h3>What is a milky way?</h3>
It should be noted that milky way simply means a spiral galaxy shaped that contains stars.
Here, the number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.
Learn more about milky way on:
brainly.com/question/13956361