First of all, that equation is not correct, which may be the reason
that you're having trouble assigning units to the quantities.
Power is defined as [energy / time], so [Energy] = [ power x time ],
and
[Time] = [ energy / power ].
Unit-wise, these equations are correct just as they appear here,
with no proportionality constants or conversion factors, when ...
[ Power ] = watts
[ Energy ] = joules
[ Time ] = seconds .
1) The coefficient of friction of the surface
2) The weight of that objects
Answer:
a. FALSE
b. FALSE
c. TRUTH
d. FALSE
e. FALSE
Explanation:
To determine which statements are truth or false you focus in the following formula, for the electric potential generated by a conducting sphere:
inside the sphere
for r > R (outside the sphere)
R: radius of the sphere
ε0: dielectric permittivity of vacuum
Q: charge of the sphere
As you can notice, inside the sphere the potential is constant. Inside the sphere, the potential is the same. Outside the surface the potential decreases as 1/r, being r the distance to the center of the sphere.
Hence, you can conclude:
a. The potential at the center of the sphere is zero. FALSE
b.The potential is lowest, but not zero, at the center of the sphere. FALSE
c. The potential at the center of the sphere is the same as the potential at the surface. TRUTH
d. The potential at the center is the same as the potential at infinity. FALSE
e. The potential at the surface is higher than the potential at the center. FALSE
The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.
Explanation:
Velocity is the rate of change of displacement with time. It is a physical quantity that has both magnitude and direction.
When expressing velocity, we must consider the directional attribute as it distinguishes it from speed.
Statements:
The hiker began hiking the park's five-mile north hiking trail at 8:00 a.m. with plenty of daylight left to complete the hike before dark.
We are given the displacement of the hiker but the duration of traveling was not indicated. The starting time is known and there is nothing we can infer from it
The motorcyclist traveled along a highway at 55 mph and reached the campsite in less than the two-hour estimated time.
55mph is the speed of the motorcyclist and not velocity. There was no directional attribute.
Walking south along the two-mile canyon trail generally takes less time than traveling the same trail north because walking south is all downhill
This is not quantifiable.
The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.
The 200m marker north is the displacement and the time is 5minutes. This is the most scientifically accurate description of velocity.
Learn more:
Motion brainly.com/question/10883914
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