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2 years ago

How does increasing the temperature of a solid affect the motion of the particles in the solid?

1 answer:

5 0

The state of matter by the means of a change in temperature or pressure. On applying heat to a particle, the kinetic energy of the particle starts to increase as a result of which a state change occurs.

On application of heat to a solid or increasing the temperature of a solid body, the kinetic energy of the constituent particles increases. In solids, the particles are tightly packed together. On heating, the body as the energy of the particles increases the particles start vibrating strongly and with greater speed as the temp increases. When at a point the kinetic energy reaches a point where the energy supplied by increasing temperature overcomes the inter-molecular forces of attraction by the surrounding molecules, the particle leaves its mean position and breaks away. When this happens solid changes its state to liquid.

How are different states of matter similar:

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A 2 kg object is

Mademuasel [1]

NO net force is required to keep a moving object moving in a straight
line at a constant speed. In fact, if you apply ANY force to it, in ANY
direction, then its speed, its direction, or both must change, and its
velocity won't be uniform any more.

I know we never see this in our daily life. Whenever we see an object
moving, it always stops. That's because the net force on it is never zero ...
there's always some gravity or some friction acting on it. That's what you
have to put up with when you live on Earth.

8 0

3 years ago

A 0.3-m-radius automobile tire rotates how many revolutions after starting from rest and accelerating at a constant 2.13 rad/s2

Aloiza [94]

Answer:

The automobile tire rotates 91 revolutions

Explanation:

Given;

angular acceleration of the automobile, α = 2.13 rad/s²

time interval, t = 23.2-s

To calculate the number of revolutions, we apply the first kinematic equation;

$\theta = \omega_i \ + \frac{1}{2} \alpha t^2$

the initial angular velocity is zero,

$\theta =0\ + \frac{1}{2} (2.13) (23.2)^2\\\\\theta = 573.2256 \ Rad$

Find how many revolutions that are in 573.2256 Rad

$N = \frac{\theta}{2 \pi} = \frac{573.2256}{2\pi} \\\\N = 91 \ revolutions$

Therefore, the automobile tire rotates 91 revolutions

3 0

4 years ago

A 45.00 kg person in a 43.00 kg cart is coasting with a speed of 19 m/s before it goes up a hill. there is no friction, what is

HACTEHA [7]

Answer:

the maximum vertical height the person in the cart can reach is 18.42 m

Explanation:

Given;

mass of the person in cart, m₁ = 45 kg

mass of the cart, m₂ = 43 kg

acceleration due to gravity, g = 9.8 m/s²

final speed of the cart before it goes up the hill, v = 19 m/s

Apply the principle of conservation of energy;

$mgh_{max} = \frac{1}{2}mv^2_{max}\\\\ gh_{max} = \frac{1}{2}v^2_{max}\\\\h_{max} = \frac{v^2_{max}}{2g} \\\\h_{max} =\frac{(19)^2}{2\times 9.8} \\\\h_{max} = 18.42 \ m$

Therefore, the maximum vertical height the person in the cart can reach is 18.42 m

5 0

3 years ago

State Newton's second law of<br>motion and write down<br>three examples to<br>justity it.

kakasveta [241]

Answer:

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

$f = m \times a$

f= force

m=mass

a=acceleration

Explanation:

examples:

riding your bicycle

•your bicycle is the mass, your leg pushing in pedals of your bicycle is the force

pushing a box

•the box is the mass, you are pushing the box

setting a pencil down in a table

•the pencil is the mass, you are puting the pencil down

3 0

3 years ago

What must happen for liquid water to become water vapor

rosijanka [135]

It must be boiled/heated to a high temp

4 0

3 years ago

How does increasing the temperature of a solid affect the motion of the particles in the solid?​

How does increasing the temperature of a solid affect the motion of the particles in the solid?