Which mixture of solids can be separated by using both shape and size?

A: Beans, ground coffee, and baking powder
B: Oval beads, marbles, and dice
C: Sand, sea shells, and salt
D: White rice, yellow string beans, and green string beans

One-dimensional motion cannot have zero distance with a non zero displacement.

zero displacement occur but a nonzero distance not.

Distance is known as the total path taken by an object.

Displacement is known as the shortest distance taken or path taken.

There will be zero displacement but  a non zero distance.

In a circular motion because displacement is the shortest distance covered.

One-dimensional motion cannot have zero distance with a non zero displacement.

zero displacement occur but a nonzero distance not.

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Answer:2.1 m/s2. 3.3 m/s2. 5.0 m/s2. 6.2 m/s2.

Explanation:

This is a type of decomposition reaction and the balanced reaction is as below

(2)KCIO3 → (2)KCI + (3)0₂

A decomposition reaction is the type of reaction in which the single reactant is broken down into one or more than one smaller product out of which one may or may not be a gaseous product.

In the given reaction, KClO3 is broken into KCl and O2, in which O2 is a gaseous product. Hence, the given reaction is an example of a decomposition reaction.

In the unbalanced chemical equation, the number of Potassium(K) and Chlorine(Cl) is equal on both the reactant and product sides. But the no. od Oxygen(O) is not equal.

Equating the oxygen on both sides, we get the balanced chemical equation as below:

(2)KCIO3 → (2)KCI + (3)0₂

Therefore, the above reaction is an example of a decomposition reaction and the balanced chemical reaction is (2)KCIO3 → (2)KCI + (3)0₂.

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By using uniform motion, the high up the slope will it strike is 730.62 m.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

θ = 70⁰

vi = 200 m/s

x = 300 m

Find the initial velocity in x and y axis

vx = vi cosθ = 68.40 m/s

vy = vi sinθ = 187.94 m/s

Find the time taken to reach 300 m

vx = x / t

68.4 = 300 / t

t = 4.39 second

Find the time taken to reach maximum height

vt = vo + a . t

0 = vy - g . t

vy = gt

187.94 = 9.8 . t

t = 19.18 second

The motion of projectile is raising to maximum height, hence

s = vo . t + 1/2 . a . t²

h = vy . t - 1/2 . g . t²

h = 187.94 . 4.39 - 1/2 . 9.8 . 4.39²

h = 730.62 m

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In a first order decomposition after 4.71 minutes, 37.8% of the compound is left.

A = A0e-kt

A/A0 = e-0.00134t, [k = 0.00299, divide both sides by A0]

A/Ao = e-0.00134*282.6, [t = 4.71 min*(60 sec/ 1 min) = 282.6 sec]

A/A0 = .3786 = 37.8%

Invertebrate creatures go through five general stages of decomposition: fresh, bloat, active decay, advanced decay, and dry/remains.

The procedures for breaking down a sales order into numerous work orders or service orders are outlined in the Order Decomposition section.

One sub-order can be created for each business line in a Triple Play Telco Sales order, which includes three services: landline, Internet, and wireless.

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The wavelength of the particle is [tex]6.626*10^{-29} cm.[/tex]

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Answer:

A coil of wire becomes an electromagnet when current passes through it. The electromagnet interacts with a permanent magnet, causing the coil to spin. Voilà!

Explanation:

A coil of wire becomes an electromagnet when current passes through it. The electromagnet interacts with a permanent magnet, causing the coil to spin. Voilà! and ig Magnetic torque: Permanent magnets generate a flux field in the rotor. The stator generates a field that interacts with the rotor's magnetic field. Changing the position of the stator field with respect to the rotor field causes the rotor to shift. The shift due to this interaction is the magnetic torque.

Answer:

no

Explanation:

velocity is equal to displacement/time

therefore if you are turning your displacement would not be as large as if you continued with a straight line.

Answer:

No.

Explanation:

For example, the car could be traveling at constant speed around a corner. In this case it`s direction is changing and therefore it`s velocity is changing.

Write an expression for the mass of the cylinder in terms of length and equal it to 250 g to find the unknown.

                                      [tex]\begin{aligned}\\\\V &= \text{area}\times \text{length}\\&= \pi \frac{d^2}{4}\times L\end{aligned}[/tex]

                     [tex]\begin{aligned}m &= \text{density}\times\text{volume}\\\\&= \rho \times \pi \frac{d^2}{4}\times L\\\\250\,g &= \rho \times \pi \frac{d^2}{4} \times L\\\\L &= \frac{250\,g\times 4}{\pi \rho d^2 }\\\\&= \frac{1000 g}{\pi \times \rho\times (10\,cm)^2}\end{aligned}[/tex]

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Answer:.

Explanation:

E = 6.36 [tex]\frac{v}{c}[/tex]

The physical field that surrounds electrically charged particles and exerts a force on all other charged particles in the electric field, either attracting or repelling them, is known as an electric field (also known as an E-field. It can also refer to a system of charged particles' physical field. Electric charges and time-varying electric currents are the building blocks of electric fields. The electromagnetic field, one of the four fundamental interactions (also known as forces) of nature, manifests itself in both electric and magnetic fields.

Electrical technology makes use of electric fields, which are significant in many branches of physics. For instance, in atomic physics and chemistry, the electric field acts as an attractive force to keep atoms' atomic nuclei and electrons together.

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The velocity of the rocket, at the instant, the fuel is exhausted is 2103 m/s

Given that,

m = [tex]m_{0}[/tex] - k t                               ⇒ ( 1 )

m dv / dt = ck - mg                   ⇒ ( 2 )

dv / dt = ( ck / m ) - g

dv = ( ck / ( [tex]m_{0}[/tex] - k t ) - g ) dt

∫ dv = c ∫( k / ( [tex]m_{0}[/tex] - k t ) dt - ∫ g dt

v = -c ln ( [tex]m_{0}[/tex] - k t ) - gt + [tex]C_{1}[/tex]       ⇒ ( 3 )

[tex]C_{1}[/tex] = Constant of integration

At t = 0, v = 0 i.e. v ( 0 ) = 0

Substitute v ( 0 ) = 0 in ( 3 )

0 = -c ln ( [tex]m_{0}[/tex] - 0k ) - 0 g + [tex]C_{1}[/tex]    

[tex]C_{1}[/tex] = c ln ( [tex]m_{0}[/tex] )

Substitute [tex]C_{1}[/tex] in ( 3 )

v = -c ln ( [tex]m_{0}[/tex] - k t ) - gt + c ln ( [tex]m_{0}[/tex] )

v = c ln ( [tex]m_{0}[/tex] /  [tex]m_{0}[/tex] - kt ) - gt     ⇒ ( 4 )

After the fuel is fully consumed after 140 s, the mass of rocket is 25% of initial mass.

m ( 140 ) = 0.25 [tex]m_{0}[/tex]

From ( 1 )

m ( t ) = [tex]m_{0}[/tex] - k t    

m ( 140 ) = [tex]m_{0}[/tex] - 140k

0.25 [tex]m_{0}[/tex] = [tex]m_{0}[/tex] - 140k

From ( 4 )

v ( 140 ) = 2500 ln ( [tex]m_{0}[/tex] /  [tex]m_{0}[/tex] - 140k ) - 9.8 ( 140 )

v ( 140 ) = 2500 ln ( [tex]m_{0}[/tex] / 0.25 [tex]m_{0}[/tex] ) - 1372

v ( 140 ) = 2500 ln ( 4 ) - 1372

v ( 140 ) = ( 2500 * 1.39 ) - 1372

v ( 140 ) = 2103 m / s

Velocity at a given instant is the displacement at that given instant.

The given question is incomplete. The complete question is:

A rocket, fired upward from rest at time t=0, has an initial mass of [tex]m_{0}[/tex](including its fuel). Assuming that the fuel is consumed at a constant rate k, the mass m of the rocket, while fuel is being burned, will be given by m = [tex]m_{0}[/tex] - k t. It can be shown that if air resistance is neglected and the fuel gases are expelled at a constant speed c relative to the rocket, then the velocity v of the rocket will satisfy the equation m  dv / dt  = c k - m g where g is the acceleration due to gravity. Suppose that the fuel accounts for 75% of the initial mass of the rocket and that all of the fuel is consumed in 140 s. Find the velocity of the rocket in meters per second at the instant the fuel is exhausted. [Note: Take g=9.8 m/s and c=2500 m/s.]

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Answer:

$200

Explanation:

[tex]total \:saved = months(monthly \: income - monthly \: outflows)[/tex]

[tex]x = 8(450 - 425)[/tex]

[tex] \times = 8(25)[/tex]

you're going to find the difference of the two values

The money that could Valerie save in the next eight months without changing her income or spending pattern is $200.

Passive income is the form of revenue obtained from renting out a home. It is a consistent source of revenue that requires minimal work to maintain.

Earnings from a rental property, limited partnership, or other enterprise are some examples. Gross income includes all sources of revenue. It is an individual's entire personal income before taxes and deductions.

Taxable income is defined as an individual's or a business firm's earnings (amount of income) that are used as a basis by federal or state authorities to calculate the tax to be levied on them.

Total saved money = months (monthly income - monthly out of flow)

x = 8($450 - $425)

x = 8(25)

Therefore, Valerie might save $200 over the next eight months without changing her salary or spending habits.

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Scientists get their evidence through scientific methods such as observation and performing experiments.

This is referred to as a part of a scientific method and it is performed by scientists to test a hypothesis so as to know whether it will be accepted or refuted.

This helps scientists to gather information from the various results gotten and the use of our sense organs such as nose etc to observe the various happenings is also a method in which scientists get their evidence. They also use models to study how certain processes occur so as to get the accurate data.

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The dimensions that could be used for a scale model of a lot

25cm x 75cm

This is further explained below.

Generally, the equation for is  mathematically given as

A scale model will always employ the lowest possible size of a dimension. Since smaller sizes can be divided more readily, smaller sizes are the ones that are used for scale models.

The dimension is 25cm x 75cm

In conclusion, The dimensions that could be used for a scale model of a lot

25cm x 75cm

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Answer:

k.e.

1/2 ×2×4=4

1/2×6×4=12

m.

16×2÷4=8

20×2÷4=10

Gravity is the single factor that plays the largest role in maintaining adequate bone strength.

Gravity is the force by which a planet or other body draws objects toward its center.

Gravity is the single factor that plays the largest role in maintaining adequate bone strength.

Gravity is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter.

The newton's law of gravitation is expressed mathematically as

F= Gm1m2/r²

where

F = force

G = gravitational constant

m_1 = mass of object 1

m_2 = mass of object 2

r = distance between centers of the masses

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The final volume of the container that contains argon gas at 4058 mm of Hg is 93.80 L.

Given in the question

Initial pressure = 1.00 atm = P1

Initial volume = 500 L = V1

Final Pressure = 4058 mm of Hg = P2

To find

Final Volume = V2

Now, the unit of pressure is different for each case, So we need to convert mm of Hg into atmospheric pressure.

Using unitary method

760 mm of Hg = 1 atm

1 mm of Hg = 1/760 atm

1×4058 mm of Hg = 1/760 × 4058 atm

4.058 mm of Hg =  4058/760 atm

4.058 mm of Hg =  5.3 atm

Now as it is given in the question that the temperature remains constant, we can apply Boyle's law.

By using Boyle's law

P1V1 = P2V2

Put in the value

(1.0)(500) = (5.3)(V2)

V2 = 500/5.3

V2 = 93.80 L

Therefore, the final volume of the argon gas at 4058 mm of Hg is 93.80 L.

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Answer:The height that you can jump has an inverse relationship to gravitational field strength. So if the field strength doubles, the height

Explanation:

Acceleration is 5m/s^2.

Acceleration = Change in velocity per unit time.

Therefore, Acceleration a = (10m/s)/(2s)

(10m/s)/(2s) = 5m/s^2

They happen at subduction zones, where shifting mineral assemblages appear to "implode" as a result of increased pressure on the rock as it is subducted deeper.

"Implosion" is the idea that is currently preferred. As subduction zones transfer rocks deeper where pressure is stronger, the building blocks frequently reorganize to take up less space, changing from, for example, a fit-in-the-gap-between-those-below arrangement to one that places rocks one on top of another. Sometimes, this can seem to develop gradually until coming to a head suddenly (I can't move until my neighbor does...), leading to an implosion. The biggest, deepest earthquakes happen where temperatures and pressures are so extreme that we can't even envision rocks breaking. Humans have never excavated a tunnel, not as deep as the earthquakes. Most nuclear bomb tests have been completed. Major nuclear weapons are substantially smaller than large earthquakes.)

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Answer:The resistance of a 24 W, 12 V filament lamp depends on the current flowing through the lamp. For currents up to 0.8 A, the resistance has a constant

Explanation:

After transforming the position vectors from polar coordinates to cartesian coordinates, we get -

a) → r = 12.4 m , θ = 170°    ↔     - 12.21 i + 2.15 j

b) → r = 4 cm , θ = 50°   ↔    2.57 i + 3.06 j

c) → r = 20 inches , θ = 210°   ↔    - 17.32 i - 10 j

A position vector is a vector that is used to represent the position of a point in the coordinate system.

Given are the polar coordinates of three points in two dimensional coordinate system.

In order to convert the polar coordinate (r, θ) into cartesian coordinates

(x, y) use the following relations -

x = r × cosθ

y = r × sinθ

a) → r = 12.4 m , θ = 170°

x = 12.4 x cos (170°) = 12.4 x -0.98480775301 = -12 .21

y = 12.4 x sin (170°) = 12.4 x 0.17364817766 = 2.15

In cartesian form → ( -12.21 i + 2.15 j )

b) → r = 4 cm , θ = 50°

x = 4 x cos (50°) = 4 x 0.64278760968 = 2.57

y = 4 x sin (170°) = 4 x 0.76604444311 = 3.06

In cartesian form → ( 2.57 i + 3.06 j )

c) → r = 20 inches , θ = 210°

x = 20 x cos (210°) = 20 x -0.86602540378 = -17.32

y = 20 x sin (210°) = 20 x -0.5= -10

In cartesian form → ( -17.32 i - 10 j )

Therefore, after transforming the position vectors from polar coordinates to cartesian coordinates, we get -

a) → r = 12.4 m , θ = 170°    ↔     - 12.21 i + 2.15 j

b) → r = 4 cm , θ = 50°   ↔    2.57 i + 3.06 j

c) → r = 20 inches , θ = 210°   ↔    - 17.32 i - 10 j

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Answer:

6.25 sec

Explanation:

Given: initial velocity = 15 m/s final velocity = 25 m/s, and distance = 125 m

average velocity = (25 + 15)/2

Distance(D) = Rate(R) x Time(T)

125 = ((25 + 15)/2) x T

125 = 20T

T = 6.25 sec

Hence the required time to achieve final speed is 6.25 sec

Answer:

See below

Explanation:

Here is another way

d = vo t + 1/2 a t^2        a = change vel /change t =  10/t

125 = 15 t + 1/2 (10/t) t^2

125 = 20 t

t = 125/20 = 6.25 s

In 0.134 milliseconds the rice will lose its momentum.

We need to know about momentum to solve this problem. Momentum can be defined as the degree of difficulty to stop a moving object. It can be determined by

P = m . v

where P is momentum, m is mass and v is velocity.

change in momentum also can be defined by the impulse which can be defined as

ΔP = F . Δt

where F is force and Δt is interval time

From the question above, we know that:

m = 0.75 g

m = 7.5 x 10¯⁴ kg

v = 7.5 m/s

F2 = 42 N

Find the interval time

ΔP = F . Δt

m . v = 42 . Δt

7.5 x 10¯⁴ . 7.5 = 42 . Δt

Δt = 1.34 x 10¯⁴ second

Δt = 0.134 millisecond

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23.2727272727.

Used a short video to find it.

Answer:

First you define your variables meaning you write out the worths of each variable. Second you write your hypothesis and this is your guess on what will happen. Third you design your experimental treatments which is you analyzing what youre going to do. Next assign your subject to treatment groups and lastly youll measured your dependent vauleable.

Explanation:

We get the speed of the wave when we divide the frequency of sound waves in front of the plane by frequency behind the plane.

Assume the source s, is behind, and the listener l, is in front of the plane. The formula for the doppler effect is given by:

fL=((v±vL )/(v±vS)) fS

Thus, dividing the frequency of sound waves in front of the plane by frequency behind the plane gives the speed of the waves.

where fL is the frequency perceived by the observer (listener),

fS is the frequency of the source,

v is the speed of the waves,

vL the speed of the listener and

vS the speed of the source.

The Doppler Effect is the shift in observed frequency of a wave caused by the movement of the source or detector relative to the transmitting medium. The Doppler Effect happens when a wave source and/or observer move relative to one other, resulting in the observer measuring a different frequency of the waves than the source. In essence, this effect happens majorly in two scenarios, a stationary observer and a moving source or a moving source and a stationary observer.

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The mass of magnesium phosphate ppt is 2.432 g.

The net ionic equation is:

3MgCl₂ (aq) + 2Na₃(PO₄) (aq) -----> Mg₃(PO₄)₂ (s) + 3Na⁺ (aq) + 3Cl⁻ (aq)

Mass of magnesium chloride = Molar mass × Moles

                                                 = 0.125 × 0.222

                                                 = 0.02775g

Mass of sodium phosphate = Molar mass × Moles

                                              = 0.225 × 0.105

                                              = 0.023625g

According to reaction stoichiometry, magnesium chloride is the limiting reagent.

So, moles of magnesium phosphate that will be formed = 0.02775/3 = 0.00925

Hence, mass of magnesium phosphate ppt = Moles × Molecular weight

                                                                        = 0.00925 × 263

                                                                        = 2.432 g

Therefore, the mass of magnesium phosphate ppt is 2.432 g.

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