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3 years ago

The potential energy possessed by a molecule is dependent upon

Physics

1 answer:

lisabon 2012 [21]3 years ago

3 0

Answer:

Its composition and structure

Explanation:

The potential energy possessed by a molecule depends on its composition and structure. Its composition determines the type of intramolecular bonds present in the molecule and its structure determines the strength of the intramolecular bonds. Let's look at the example of the water molecule. It consists of two hydrogen atoms and one oxygen atom. The intramolecular bonds present here is the covalent O-H bond and since it has two O-H bonds in a molecule, and is V-shaped. These two properties determine the magnitude of the potential energy of the molecule.

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2. Kevin works as a janitor, and he is pushing a fully-

dybincka [34]

The time taken for him to move the bin 6.5 m is 2.30 s.

The given parameters;

weight of the load, w = 557 N
force applied , F = 410 N
angle of force, = 15°
coefficient of kinetic friction = 0.46
distance moved, d = 6.5 m

The net horizontal force on the recycling bin is calculated as follows;

$Fcos\theta - F_k = ma$

where;

m is the mass of the recycling bin
$F_k$ is the frictional force

W = mg

$557 = 9.8m\\\\m = \frac{557}{9.8} \\\\m = 56.84 \ kg$

The net horizontal force on the recycling bin is calculated as;

$Fcos \theta - F_k = ma\\\\Fcos\theta - \mu_kF_n = ma\\\\410\times cos(15) \ - \ 0.46(557) = 56.84 a\\\\139.8 = 56.84a\\\\a = \frac{139.8}{56.84} \\\\a = 2.46 \ m/s^2$

The time taken for him to move the bin 6.5 m is calculated as follows;

$s = v_0t + \frac{1}{2} at^2\\\\6.5 = 0 + \frac{1}{2} \times 2.46\times t^2\\\\6.5 = 1.23 t^2\\\\t^2 = \frac{6.5 }{1.23} \\\\t^2 = 5.285\\\\t = \sqrt{5.285} \\\\t = 2.30 \ s$

Thus, the time taken for him to move the bin 6.5 m is 2.30 s.

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7 0

3 years ago

What is ohms law PLEASE ANSWER THIS I NEED IT FAST

Lorico [155]

Answer:

Ohms law states that current is directly proportional to the potential difference across the ends of a conductor provided that temperature and other factors kept constant

$V=I(R)$

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3 years ago

Are we real?Should we believe in hell and heaven?Should we take life seriously?Why do we feel like we are being pulled down from

nlexa [21]

Uhhhhh just sleep? Are you ok?

7 0

2 years ago

Read 2 more answers

Identify the 3 types of energy transfer shown in the diagram.

fgiga [73]

Answer:

1.Conduction.

2.Convection.

3.Radiation.

Explanation:

I'm sure it's correct

7 0

3 years ago

0.250 moles of gas are in a piston.The gas does 109 J of work while 240 J of heat are added. What is the change in internal ener

irina [24]

Answer:

+131Joules

Explanation:

Energy can be expressed using below expresion.

ΔE = (q + w).........eqn(1)

q will be + be if heat is gained hence, q= 240 J

work "w" will be - ve if work is done by the system, hence w= -109 J

Then substitute into eqn(1)

Change in Internal energy=

= (240 -109 )

= +131J

6 0

3 years ago