The answer is a, move fast enough that the attraction is overcome
Answer:
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The resultant of the two vectors is determined as 9.1 units at 83.7⁰.
<h3>
Resultant of the vectors</h3>
The resultant of the vectors is calculated as follow;
Sum of vectors in x-direction = (3 - 2)x = x
Sum of vectors in y-direction = (5 + 4)y = 9y
Resultant vector = √(1² + 9²) = 9.1 units
Direction of the vectors = tan⁻¹(y/x) = tan⁻¹(9/1) = tan⁻¹(9) = 83.7⁰
Thus, the resultant of the two vectors is determined as 9.1 units at 83.7⁰.
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Answer:
a. Value of MA is always lesser than VR because mechanical advantage decreases due to the friction and weight of moving parts of the machine.
b.Efficiency of lever is never 100 or more because it will always lose some tiny (sometimes immeasurable) percentage of power due to the lever bending.
c.Because it helps to apply more torque.
d.Because the upright snip has the blades rotated 90° from the handles.
e.because some of the input work is used to overcome friction.
f.because the load arm is always longer than effort arm.
g.because the effort arm is always longer than load arm of these Lever.
h. because if the effort distance is greater than load distance there will be magnification of force and the metals could easily cut.
i. because the wheelbarrow's wheel and axle help the wheelbarrow to move without friction thus making it easier to push or pull.
Answer:
TRUE
Explanation:
BECAUSE AN OBJECTS DENSITY SHOWS HOW MUCH WEIGHT IS PER CUBIC UNIT. LIKE SAD HAS MORE DENSITY THAN WATER SO IT SINKS WHILE WOOD HAS LESS DENSITY THAN WATER SO IT FLOATS