Answer:
115.6 J
Explanation:
= mass of the block = 3.7 kg
= final speed of the block = 0 ms⁻¹
= initial speed of the block = 7.9 ms⁻¹
= work done on the block
Using work done - change in kinetic energy theorem, we have
120V is the line-to-neutral voltage .
<h3>What is Line Voltage ?</h3>
It is defined as the voltage of a power transmission circuit or distribution circuit up to the point of transformation or utilization.
The secondary line voltage is
The notation AC indicates that the current is an alternating current.
The given formula is
Substitute 208 V into the formula
So, the line-to-neutral voltage is 120 V.
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Explanation:
Let us assume that piece 1 is is facing west side. And, piece 2 is facing south side.
Let = m and = 2m. Hence,
= 10.5 m/s
= 10.5 m/s
=
= 14.84 m/s
or, = 15 m/s
Hence, the speed of the third piece is 15 m/s.
Now, we will find the angle as follows.
=
=
=
Therefore, the direction of the third piece (degrees north of east) is north of east.
<span>C.There are areas in California that use the heat from deep in the Earth to generate electricity. </span>
Even though the object is weightless, it would need inertia, I.e, you pushing it or any form of transportation. So you would still have to push that 500kg to just keep it moving in space. Say if it were a planet with less gravitational force, it would be weightless.