Physics, 21.01.2021 22:10 abosse144

State whether the potential energy of the underlined object increases or decreases as a result of the change described. a hot air balloon lands in a field

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Answer from: neariah24

A) increase

2) decreases

3) increase

Explanation:

THIS IS THE COMPLETE QUESTION BELOW;

2.State whether the potential energy of the underlined object increases or decreases as a result of the change

1)A personclimbs a flight of stairs.

2)A diverdives into a pool

3)A hot air balloonlands in a field.

Kinetic energy can be regarded as a form of energy which an object posses as a result of motion. It can be regarded as energy that is associated associated with motion.

Kinectic Energy can be calculated using below formula.

K.E= 1/2mv^2

Where m= mass of the object

v= velocity of the object

It should be noted that Kinetic energy of a body depends on the velocity of the body squared. Whenever velocity of a body is doubled, then the kinetic energy of the body will quadruples.

1)A person climbs a flight of stairs.

As the person is climbing up, then he's doing that as a result of increase in his velocity and as the velocity increase, the Kinectic energy increases as he climb up the stair.

2)A diver dives into a pool.

As the driver drives into the pool , his Kinectic energy decrease, because his velocity will reduce as he enter the pool

3)A hot air balloonlands in a field.

The Kinectic energy will increase, because as a result of increase in velocity of the balloon

Answer from: Quest

answer: the correct answer id option(d).

explanation:

snell's law refraction:

$\frac{n_2}{n_1}=\frac{sin \theta_1}{sin\theta_2}$

the angle of refraction = $\theta_2=38 ^o$

the angle of incidence = $\theta_1=?$

refractive index of air = $n_1$ = 1

refractive index of glycerol $n_2$ = 1.47

$\frac{1.47}{1}=\frac{sin\theta_1}{sin 38^o}, (sin38^o=0.61)$

$sin\theta_2=0.8967$

$\theta_2=24.2^o, (sin^{-1}0.8967=63.72^o)$

from the given options, the most closest answer to 63.72° is 65° of option (d).

Answer from: Quest

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

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State whether the potential energy of the underlined object increases or decreases as a result of th...