Which characteristic is present in a planet but not in a dwarf planet? A spherical shape. An orbit around the sun. An orbit cleared of other objects. A potato-like shape.​

Answer:

Kinetic sand is regular sand that's been coated with silicone oil

Explanation:

hope it helps

A sample of matter experiences a decrease in average kinetic energy as it continues to cool. One would anticipate that the particles will eventually come to a complete stop. The temperature at which particles should theoretically stop moving is absolute zero. Thus, option B is correct.

What theory directly contradicts concept of absolute zero?

All molecules are predicted to have zero kinetic energy and, as a result, no molecular motion at absolute zero (273.15°C). Zero is a hypothetical value (it has never been reached).

Absolute zero signifies that there is no kinetic energy involved in random motion. A substance's atoms don't move relative to one another.

Therefore, Kinetic energy because it can create heat which goes against the absolute zero. A gas molecule's kinetic energy tends to zero when the temperature reaches absolute zero.

Learn more about theory here:

brainly.com/question/18996125

#SPJ2

Answer:

D: tipping over dominoes

Explanation:

tipping over dominoes makes a wave-like movement

Answer:

the answer is D. just got it right 4/19/22

Explanation:

Answer:

A) 1.79ohms

Explanation:

Total resistance of resistors in parallel is given by ;

1/R = 1/R1 + 1/R2 +1/R3

Put in the values and make R the subject

Answer:

The correct option is;

Stream of particles

Explanation:

Light can be observed to behave as stream of particles in the physical phenomenon of blackbody radiation and photoelectric effect whereby electrons are ejected by the impact of light such that the number of electrons ejected is a function of the amount of photons transmitted which are absorbed by the electrons before they can be ejected

The energy of the photons depends on the frequency of the light source of the photons, while the electrons are ejected when the energy of the photon is up to their threshold value

As such light can also be considered as behaving as a stream of particles called photons.

The acceleration of the cheetahs in the standard international units would be 8.938 meters/second².

The rate of change of the velocity with respect to time is known as the acceleration of the object.

As given in the problem a cheetah goes from standing still to running at 60  miles per hour in 3 seconds

1 mile = 1609 meters

60 miles = 60×1609 meters

               =96540 meters

1 hour = 3600 seconds

the initial velocity of the cheetah = 0

the final velocity of the = 96540/3600

                                      =26.8166 meters/seconds

acceleration = (final velocity - initial velocity) /time period

                    =(26.8166 -0)/3

                    =8.938 meters/second²

Thus, the cheetah's acceleration would be 8.938 meters/second².

To learn more about acceleration from here, refer to the link;

brainly.com/question/2303856

#SPJ2

Answer:

I dont even know my g

Explanation:

Like i cant even help u

Answer: B

Explanation: just did the quiz

Vector B shows the direction of the centripetal acceleration at this point.

Centripetal acceleration is the acceleration of a frame traversing a circular path. because the pace is a vector quantity (this is, it has both a magnitude, the rate, and a course), when a frame travels on a circular course, its route continuously adjustments, and accordingly its velocity changes.

Centripetal forces motivate centripetal accelerations. within the special case of the Earth's circular motion around the sun – or any satellite's ground movement around any celestial body – the centripetal force causing the movement is the end result of the gravitational enchantment among them.

Learn more about centripetal acceleration here: https://brainly.com/question/11770998

#SPJ2

Answer:

english or spanish

Explanation:

Answer:

English

Explanation:

Answer:

The substance is Ethanol

Explanation:

To solve this problem we must use the expression of thermal energy calculation that relates the mass of a body with the specific heat of this and the temperature difference.

Q = m*Cp*(T_f - T_i)

where:

Q = amount of heat = 14.4 [kJ]

m = mass = 12 [kg]

Cp = specific heat [kJ/kg*K]

T_f = final temperature = 275.5 [K]

T_i = initial temperature = 275 [K]

Therefore we need to calculate Cp, and then compare this with the values in the given table attached.

Cp = 14.4/(12*(275.5 - 275))

Cp = 2.4 [kJ/kg*K]

Now we compare the Cp with the values given in the table.

So the substance is Ethanol

Answer:

Antimony is metalloid

Explanation:

From the properties of the metals given, we can conclude that antimony is pure a metalloid.

A metalloid has the properties of metals and non-metals.

Answer:

a. Chemical changes require a change in composition and physical does not

Explanation:

The main difference between physical and chemical changes is that chemical changes require a change in composition and physical does not.

A chemical change is the change in composition of a substance which is irreversible and a permanent change.

On the other hand, physical change is a temporary change in a substance and can be easily reversible. The composition of a substance do not change in physical composition.

Answer:

All cells come from pre-existing cells

Explanation:

Rudolf Virchow, a German Physician, stated the theory that all cells arise from pre-existing cells. He used this theory to explain disease pathology at the cellular level. His work helped clarify that diseases occur not at tissue or organ level, but at the cellular level. This resulted in more accurate diagnosis of diseases by other scientists.

His legacies includes being among the first to use animals in his research, first to name numerous diseases and also the creation of many medical terms still in use today.

Answer:

I'm pretty sure it's A. long time, small force.

Answer:

When water absorbs enough heat, it becomes a gas (water vapor). This process is called evaporation.

Explanation:

Explanation:

The potential energy of an object is given by :

P = mgh

Where,

m is mass, g acceleration due to gravity and h is the height reached by the object.

The potential energy of an object is directly proportional to the height of the object. It means that when the skateboard reaches at the maximum height, it has highest potential energy.

Answer:

[tex]{FY} = \dfrac{3}{4} \times FX[/tex]

Explanation:

The parameters given for the planets are;

The mass of planet X = M and the radius of planet X = R

The mass of planet Y = 3·M and the radius of planet Y = 3·R

The magnitude of the gravitational force of the planets on their satellites are given by the following equation;

[tex]F=G \times \dfrac{M_{1} \cdot m_{2}}{R^{2}}[/tex]

Where;

M₁ = The mass of the first object = The mass of the planet

m₂ = The mass of the second object = The mass of the satellite

R = The distance between the centers of the two planets = The distance between the center of the planet and the satellite

G = The universal gravitational constant

The force between planet X and the satellite in its orbit = [tex]FX=G \times \dfrac{M \times m}{(2 \cdot R)^{2}} = G \times \dfrac{M \times m}{4 \cdot R^{2}}[/tex]

The force between planet Y and the satellite in its orbit = [tex]FY=G \times \dfrac{3\cdot M \times m}{(4 \cdot R)^{2}} = G \times \dfrac{3\cdot M \times m}{16 \cdot R^{2}} = G \times \dfrac{ 3\cdot M \cdot m}{16 \cdot R^{2}}[/tex]

Therefore;

[tex]\dfrac{FY}{FX} = \dfrac{G \times \dfrac{ 3\cdot M \cdot m}{16 \cdot R^{2}}}{G \times \dfrac{M \times m}{4 \cdot R^{2}}} = \dfrac{3}{16} \times \dfrac{4}{1} = \dfrac{3}{4}[/tex]

[tex]{FY} = \dfrac{3}{4} \times FX[/tex]

The velocity of an object that has been falling freely in a vacuum

for 4 seconds is 39.2 m/s.

The given parameters;

The value acceleration due to gravity in vacuum is approximately 9.8 m/s².

The final velocity of the object is calculated as follows;

v = u + gt

where;

Substitute the given parameters and solve for v;

v = 0 + 9.8(4)

v = 39.2 m/s

Thus, the velocity of an object that has been falling freely in a vacuum

for 4 seconds is 39.2 m/s.

Learn more here:https://brainly.com/question/16298299

The ability to get energy out depends on the material's elasticity. The energy stored in a spring depends on the: Distance the spring is deformed (stretched or compressed) The spring constant, which defines the amount of force required to deform a spring by a certain length (the work done on the spring).

Answer: Sound waves are examples. parallel - For the purposes of this Activity Object, parallel is defined as moving in the same direction. Specifically in the case of longitudinal waves, particles move forward and back parallel to the direction of the travelling wave. ... Some examples are ocean waves and light waves.

Explanation:

Answer:

B. A large current forms, drops to zero, then a smaller current forms in the opposite direction

Explanation:

The results of Lionel observation about electromagnetic induction is as follows:

In the first step, a large current will form because of the fast or quick movement of the magnet into the right end of a solenoid that generates a  induces emf.

In the second step, the magnet was in rest position for 3 s so the current drops to zero because according to Faraday's law, no voltage will be generated if the magnet held stationary and no voltage means no current.

In the third step, smaller current forms in the opposite direction as the magnet is slowly moving away from the solenoid generating a smaller voltage.

Hence, the correct answer is "B."

Answer:

B

Explanation:

Answer:

the answer is  b

Explanation:

The particles in the cold water moved at a slow rate until an increase in temperature caused an increase in particle motion in the hot tea.

According to the kinetic theory of matter, the particles that compose matter are in constant random motion. The particles collide frequently with each other as well as with the walls of the container.

The temperature of the system refers to the average kinetic energy of the molecules of the body. At a lower temperature, the speed of the particles of water is slow. As the temperature increases, more kinetic energy is imparted to the molecules of water and they move faster.

Learn more: https://brainly.com/question/5624100

Answer:

yoga postures and breathing techniques in Hatha yoga purify the physical body.

Explanation:

Answer:

keystone

Explanation:

Answer:

So it's clear that Earth's hot iron core isn't what creates the magnetic field around our planet. ... On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet

Explanation:

Data:

m=0.8kg

g=10m/s2

w=?

Solution:

w=mg

w=(0.8)(10)

w=8N

Result:

weight of the bird is 8N

Answer:

electrical- mechanical

Explanation:

Smartness 1,000

Friend me too

Answer:

a) W=9000J

b) W=11,666.67 J

c) The work done by the gas with a 1 meter barrel is 2,666.67 J greater than the work done by the gas with a 0.600 m barrel. This is about 1.3 times greater.

Explanation:

(The function written in the problem isn't too clearly written, but I believe it should be like this:

A 100-g bullet is fired from a rifle having a barrel 0.600 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is [tex]15 000 + 10 000x - 25 000x^{2}[/tex] , where x is in meters. (a) Determine the work done by the gas on the bullet as the bullet travels the length of the barrel. (b) What If? If the barrel is 1.00 m long, how much work is done, and (c) how does this value compare with the work calculated in part (a)?)

a)

Since the force applied to the bullet is going to vary with the length of the barrel, we will need to make us of integration to find the work done by the gas.

So first, we start by drawing a sketch of what the problem looks like. (See attached picture). This will help us visualize the problem better.

Now, work is defined as the following integral:

[tex]W=\int\limits^a_b {F} \, dx[/tex]

The problem tells us the force exerted by the expanding gas on the bullet is:

[tex]F(x)=15,000+10,000x-25,000x^{2}[/tex]

So we go ahead and substitute this function into the integral.

[tex]W=\int\limits^{0.6}_0 {15,000+10,000x-25,000x^{2}} \, dx[/tex]

Now, before integrating that function, we can factor it so it is easier for us to integrate and to deal with the values, so we can factor a common 5,000 out, so we get:

[tex]W=5,000\int\limits^{0.6}_0 {3+2x-5x^{2}} \, dx[/tex]

and we proceed to integrate so we get:

[tex]W=5,000[3x+x^2-\frac{5}{3}x^{3}]\limits^{0.6}_0[/tex]

and evaluate the integral, so we get:

[tex]W=5,000([3(0.6)+(0.6)^2-\frac{5}{3}(0.6)^{3}]-[3(0)+(0)^2-\frac{5}{3}(0)^{3}][/tex]

Which yields:

W=9000J

b)

For part b we follow the exact same procedure but we change the limits of integration for 0 and 1 so the integral looks like this:

[tex]W=\int\limits^1_0 {15,000+10,000x-25,000x^{2}} \, dx[/tex]

and we get the following answer:

[tex]W=5,000[3x+x^2-\frac{5}{3}x^{3}]\limits^1_0[/tex]

and

[tex]W=5,000([3(1)+(1)^2-\frac{5}{3}(1)^{3}]-[3(0)+(0)^2-\frac{5}{3}(0)^{3}][/tex]

so

W=11,666.67 J

c) The difference between the two works we calculated is:

11,666.67J-9000J=2,666.67J

so the work done by the gas with a 1 meter barrel is 2,666.67 J greater than the work done by the gas with a 0.600 m barrel.

if we did the following division:

[tex]\frac{11,666.67}{9,000}=1.3[/tex]

So we can see that this is about 1.3 times greater.