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3 years ago

What is the relationship between elevation and energy (think about the same can dropped from different heights)?

Physics

2 answers:

MA_775_DIABLO [31]3 years ago

8 0

Elevation would be showing you what height you are at, energy would be like what force your putting into the object.

aniked [119]3 years ago

6 0

Answer: Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Explanation:

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Two manned satellites approach one another at a relative velocity of v = 0.150 m/s, intending to dock. The first has a mass of m

Aleksandr [31]

Answer:

= - 0.41m/s

Explanation:

Velocity of first satellite

$V_1 = \frac{m_1 -m_2}{m_1 + m_2} u$

$V_1 = \frac{(4 \times 10^3) - (7.5 \times 10^3)}{(4 \times 10^3) + (7.5 \times 10^3)} \times 0.15\\\\= -0.30435$

Velocity of the second satellite

$V_2 = \frac{2m_1}{m_1 + m_2} u$

$V_2 = \frac{2 \times 4 \times 10^3}{4 \times 10^3 + 7.5 \times 10^3} \\\\= 0.10435$

Final velocity = V(1) - V(2)

$V = -0.30435 - 0.10435\\\\= -0.4087$

≅ -0.41m/s

8 0

3 years ago

Read 2 more answers

A stone was dropped off a cliff and hit the ground with a speed of 96 ft/s. What is the height of the cliff? (Use 32 ft/s2 for t

nadezda [96]

The initial velocity of the stone is 0 ft/s. Given the initial velocity (Vi), final velocity (Vf), and acceleration due to gravity (g), the distance may be calculated through the equation,
d = ((Vf)² - (Vi)²) / 2g
Substituting the known values,
d = ((96 ft/s)² - 0))/ (2x32.2)
The value of d is 143.10 ft.

4 0

3 years ago

Can someone explain the law of conservation of energy?

Bad White [126]

The law of conservation of energy is:

-- Energy can't be created or destroyed.

-- Energy can't just appear out of nowhere. If you suddenly have
more energy, then the 'extra' energy had to come from somewhere.

-- Energy can't just disappear. If you suddenly have less energy,
then the 'missing' energy had to go somewhere.
________________________________________

There are also conservation laws for mass and electric charge.
They say exactly the same thing. Just write 'mass' or 'charge'
in the sentences up above, in place of the word 'energy'.
________________________________________

And now I can tell you that the conservation laws for energy and mass
are actually one single law ... the conservation of mass/energy. That's
because we discovered about 100 years ago that mass can convert
into energy, and energy can convert into mass, and it's the total of BOTH
of them that gets conserved (can't be created or destroyed).

How much mass makes how much energy ?

The answer is E = m c² .

5 0

3 years ago

A 5.0 kg block hangs from the ceiling by a mass-less rope. A Second block with a mass of 10.0 kg is attached to the first block

gayaneshka [121]

The tension in the first and second rope are; 147 Newton and 98 Newton respectively.

Given the data in the question

Mass of first block; $m_1 = 5.0kg$

Mass of second block, $m_2 =10kg$

Tension on first rope; $T_1 =\ ?$

Tension on second rope; $T_2 =\ ?$

To find the Tension in each of the ropes, we make use of the equation from Newton's Second Laws of Motion:

$F = m\ *\ a$

Where F is the force, m is the mass of the object and a is the acceleration ( In this case the block is under gravity. Hence ''a" becomes acceleration due to gravity $g = 9.8m/s^2$ )