Darren filled ocean water, fresh water, bottled water, and tap water into four different containers. He then dropped identical g
olf balls into each of the four containers. The picture below shows the golf balls in the four different liquids.
Into which of these containers did Darren most likely fill ocean water?
Container 1,2,3 or 4?
Into which of these containers did Darren most likely fill ocean water?
Container 1,2,3 or 4?
2 answers:
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Answer:
Explanation:
The spring is stretched by .5 m and then released that means its amplitude of oscillation A is 0.5 m .
A = 0.5 m
After the release at one extreme point , the mass comes to rest again at another extreme point after half the time period ie
T / 2 = .3 s
T = 0.6 s
Angular velocity
ω =
ω =
ω = 10.45
Maximum velocity = ω A
ω and A are angular velocity and amplitude of oscillation.
Maximum velocity = 10.45 x .5
= 5.23 m /s
Answer:
Energy
Explanation:
The unit is .
We can see the formula of kinetic energy is
Where is the mass and
is the velocity of the object.
Which means its unit would be kg times square of meter per second, that is . Which is often referred as Joule.
Also, when look at the formula of work done by an object.
Where is the force and
is the distance traveled by the object due to force
.
We an see that its unit is kg meter per second squared times meter. That is equivalent to . This is also a type of energy.
So, the unit is the unit of energy.