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3 years ago

HELP PLS.What are the characteristics of the three states of matter?

2 answers:

5 0

Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles. Hopefully this helps:)

Kisachek [45]3 years ago

4 0

Matter can exist in one of three main states

-solid

- liquid

- gas

Solid matter is composed of tightly packed particles.

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Phosphorus trichloride is used in the production of chemicals that keep plants from growing in a specific area. This compound is

Sever21 [200]

The Answer Is P should come first.

5 0

3 years ago

Read 2 more answers

What happens to the density if the volume of an object decrease and the mass remains the same?

vekshin1

The density would increase because you still have the same amount of weight, but it is just packed more tightly in a smaller object.

7 0

3 years ago

5. A cheetah with a mass of 70 kg was clocked running at 72 mph (32 m's). How many joules of

blsea [12.9K]

Answer:

Kinetic energy = 35840 Joules

Explanation:

Given the following data;

Mass = 70kg

Velocity = 32m/s

To find the kinetic energy;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

$K.E = \frac{1}{2}MV^{2}$

Where, K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

$K.E = \frac{1}{2}MV^{2}$

Substituting into the equation, we have;

$K.E = \frac{1}{2}*70*32^{2}$

$K.E = \frac{1}{2}*70*1024$

$K.E = 35 * 1024$

K.E = 35840 Joules.

Therefore, the kinetic energy possessed by the cheetah is 35840 Joules.

7 0

3 years ago

A wheel is rotating about a fixed axis with constant angular acceleration 3 rad/s². At different moments, its angular speed is -

meriva

b and e are the largest and equal in magnitude. $w*2R = (2)(2)R = 4R$

A and d are next. aR = (3rad/s2)R = 3R

c is zero. wR = v = 0; Angular acceleration is zero.

<h3>What is angular acceleration?</h3>

The temporal rate at which angular velocity changes is known as angular acceleration. The standard unit of measurement is radians per second per second. Therefore, = d d t. Rotational acceleration is another name for angular acceleration.
Angular velocity divided by acceleration time can be used to define angular acceleration. (t). As an alternative, use pi times the drive speed (n) divided by the acceleration time (t) times 30. Radians per second squared (Rad/sec2) is the standard SI unit for rotational acceleration resulting from this equation.
To calculate angular velocity, we can use one of three formulas. The definition itself provides the first. Theta = position angle, t = time, and w = angular velocity, where w = angular velocity, theta = position angle, and t = time. Angular velocity is the rate of change of an object's position angle with respect to time.
The symbol for angular acceleration is, and it is measured in rad/s2, or radians per second square.

If two items are equal, show them as equal in your ranking. If a quantity is equal to zero, show that fact in your ranking:

b and e are the largest and equal in magnitude. $w*2R = (2)(2)R = 4R$

A and d are next. aR = (3rad/s2)R = 3R

c is zero. wR = v = 0; Angular acceleration is zero.

To learn more about angular acceleration, refer to:

brainly.com/question/20912191

#SPJ4

8 0

1 year ago

In preparation for building a space station, an astronaut removes a self-telescoping uniform rod from the cargo bay and releases

emmainna [20.7K]

To solve this problem it is necessary to apply the concepts related to the conservation of angular momentum. This can be expressed mathematically as a function of inertia and angular velocity, that is:

$L = I\omega$

Where,

I = Moment of Inertia

$\omega$ = Angular Velocity

For the given object the moment of inertia is equivalent to

$I = \frac{mr^2}{12}$

Considering that the moment of inertia varies according to distance, and that there are two of these without altering the mass we will finally have to

$L_i = L_f$