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3 years ago

Temperature and kinetic energy have a_______relationship.

Physics

2 answers:

Alex73 [517]3 years ago

8 0

The hotter an object is, the more kinetic energy it has, but i'm not sure what is the exact word missing??

Crank3 years ago

8 0

Answer : Temperature and kinetic energy have a direct relationship.

Explanation :

The relationship between the kinetic energy of a gas particle and the temperature is,

$\text{Kinetic energy}=\frac{3}{2}\frac{RT}{N_A}$

where,

R = Gas constant

$N_A$ = Avogadro's number

T = temperature

From this we conclude that the kinetic energy of a gas molecule is directly proportional to the the temperature of a gas molecule. That means there is a direct relationship between the kinetic energy and the temperature.

Hence, the temperature and kinetic energy have a direct relationship.

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A block slides to a stop as it goes 47 m across a level floor in a time of 6.35 s. a) What was the initial velocity? b) What is

UNO [17]

Answer :

(a) The initial velocity is, 14.8 m/s

(b) The acceleration is, $-2.33m/s^2$

Explanation :

By the 1st equation of motion,

$v=u+at$ ...........(1)

where,

v = final velocity = 0 s

u = initial velocity

t = time = 6.35 s

a = acceleration

The equation 1 will be:

$0=u+a(6.35}$

$u=-6.35a$ ..........(2)

By the 2nd equation of motion,

$s=ut+\frac{1}{2}at^2$ ...........(3)

where,

s = distance = 47 m

Now substitute equation 2 in 3, we get:

$47=(-6.35a)\times (6.35)+\frac{1}{2}\times a\times (6.35)^2$

By solving the term, we get:

$a=-2.33m/s^2$

The acceleration is, $-2.33m/s^2$

Now we have to calculate the initial velocity.

Using equation 2, we gte:

$u=-6.35a$

$u=-6.35s\times (-2.33m/s^2)$

$u=14.8m/s$

The initial velocity is, 14.8 m/s

5 0

3 years ago

Which freezes faster, hot water or cold water?

Digiron [165]

Hot water seems to freeze faster than cold water, known as the Mpemba effect. The effect was named after the Tanzanian student who in 1963 noticed that hot ice cream mix freezes faster than a cold one. hope this helped

8 0

3 years ago

Read 2 more answers

What is stored energy?

Yuri [45]

Depends on the situation. It could be something like potential energy of a compressed or stretched spring.

8 0

4 years ago

A 100 kg boat is floating in water. half of the boat is submerged under water. what is the weight of the boat?

Alex17521 [72]

W=MG
w is weight
m is mass
g is gravity
W=(100 kg)(9.8 m/s)
W= 980 N
hope this helps

7 0