Identify the amplitude of the wave using the picture below.

Answer:

0.09

Explanation:

I took the test and the correct answer is actually

-0.09

If the voltage of a circuit is doubled and the resistance remains unchanged, then current flowing through the circuit: will Increase

The Current of a circuit is directly proportional to the voltage and inversely proportional to the resistance.

The voltage in a circuit is equal to the product of the current and the resistance in the circuit

The resistance in a circuit is directly proportional to the voltage but inversely proportional to the current.

In conclusion, If the voltage of a circuit is doubled and the resistance remains unchanged, then current flowing through the circuit: will Increase

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The electric field for the nonconducting sphere of radius r₀ carries a total charge q distributed uniformly throughout its volume will be,[tex]E=kQ\frac{r}{r_0^3}[/tex].

It is a physical field occupied by a charged particle on another particle in its surrounding.

For a non-conducting sphere, the charge density is;

[tex]\rm \rho = \frac{q}{V} \\\\ \rho = \frac{Q}{\frac{4}{3}\pi r^3 } \\\\ \rho = \frac{3Q}{4 \pi r_0^3} \\\\[/tex]

The electric field is found as;

[tex]\rm E=K \frac{\rho V}{r^2} \\\\ E= k \frac{3Q \times 4 \pi r^3}{4 \pi r_0^3 \times 3r^2} \\\\ E=kQ\frac{r}{r_0^3}[/tex]

Hence, the electric field for the nonconducting sphere of radius r₀ carries a total charge q distributed uniformly throughout its volume will be,[tex]E=kQ\frac{r}{r_0^3}[/tex].

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Answer:

Explanation:

Caty  ,  Use   the relativity formula for length.  ( they teach this in H.S. ? )  it's from my Modern Physics in college, A 300 level class  

L = [tex]L_{0}[/tex][tex]\sqrt{1-\frac{v^{2} }{c^{2} } }[/tex]

L = 3  [tex]\sqrt{1-\frac{.95^{2} }{1^{2} } }[/tex]

L = 0.9367496998  meters

L = 0.94 meters approx

The relationships between momentum, mass, and velocity is that the product of mass and velocity gives the momentum of that object ( kg.m/s ).

P = mv.

Momentum is simply the product of the mass of an object and its velocity.

Its is expressed as;

P = m × v

Where m is the mass of the object and v is its velocity.

The relationships between momentum, mass, and velocity is that the product of mass and velocity gives the momentum of that object ( kg.m/s ).

P = mv

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Answer:(C)

Explanation:

because is 13 trust me I got it right

Answer:

Cracking of an egg is a physical change since the egg and the stuff inside does not change but the shape or appearance of the shell changes.

Explanation:

Hope it helps

It has been proposed that the total number of civilizations that have arisen in our galaxy would be closest to 100,000.

A galaxy is a group of stars (solar systems), gas, and dust in a specific position in the Universe.

The Milky Way is the galaxy where we live and it has been proposed that this galaxy is full of dead civilizations.

In conclusion, the total number of civilizations that have arisen in our galaxy would be closest to 100,000.

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Answer:

30 J

Explanation:

You have to transform g in kg, so 600 g=0,6 kg

the kinetic energy value is

K= ½ mv² so it is K=½ (0.6×100)=30 J

[tex]\text{Kinetic energy,}\\\\~~~~~~E_k = \dfrac 12 mv^2\\\\~~~~~~~~~~=\dfrac 12 \times 6\times 10^{-1} \times 10^2~~~~~~~;[m = 600 g = 600 \times 10^{-3}~ \text{kg} = 6\times 10^{-1}~ \text{kg}]\\\\~~~~~~~~~~=\dfrac{60}2\\\\~~~~~~~~~~= 30~ J[/tex]

Answer:

c

Explanation:

Out of the given options, shovel, pushup, and seesaw are all examples of levers. Hence, the one that is not an example is :

The box moves to the left to its resisting change in motion AKA inertia.

The law of inertia of Newton's first law of motion states that an object at rest o uniform motion in a straight line will continue in that path unless it is acted upon by an external force and will move in the direction of the applied force.

When the woman applies a force on the cart, the cart will move in the direction of the woman applying the force, while the box will move backward due to resisting change in motion.

Thus, the correct answer is, the box moves to the left to its resisting change in motion AKA inertia.

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What property/properties of water allowed the water to stick to the penny?

Solution's:

Explanation:

By these properties, the water molecules gets attracted to the other molecules. Hence, this makes the water get stick to the penny.

Answer:

cohesion and surface tension

Explanation:

The properties of cohesion as well as surface tension, possessed by water, made the water stick to the penny.

An object appears white because it reflects all wavelengths of visible light . Option A is correct.

Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.

A white item reflects white light in all hues equally. We see the hue that an item does not absorb if it absorbs all except one. Red, orange, green, blue, indigo, and violet light are absorbed by the yellow strip in the diagram.

Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of vitamin C.

An object appears white because it reflects all wavelengths of visible light .

Hence, the correct answer for the blanks is reflects all wavelengths of visible light .

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Answer:

6.74 m

Explanation:

PE = KE

mgh = 1/2 mv^2

30 ( 9.81) h = 1/2 (30)(11.5)^2

    h = 6.74 m

Answer:

diffraction

Explanation:

took da test

Answer:

check the attachments for the solution

Answer:

Area is two dimensional   like   cm^2     volume is 3 dimensional  like cm^3

Explanation:

Answer:

an area is a two dimensional whereas a volume is a three dimensional

Explanation:

An area is a plain figure while a volume is a solid figure.The area is measured in square units and the volume in cubic units.The area covers the outer space and the volume the inner capacity

Answer:

canola oil biome is a chemically refined oil that is used for cooking and skin

Explanation:

Answer:

effort effort effort effort effort effort

It is true that the incident angle is the angle formed between the barrier and the direction of wave propagation.

Wave propagation refer to the processes and different ways waves travels from one medium to another and transferring energy.

Therefore, is true that the incident angle is the angle formed between the barrier and the direction of wave propagation.

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The total magnetic field of the alpha particle will be = 1.974 x 10⁻⁴ T .

Magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Magnetic field due to moving charge =

[tex]B=\dfrac{\mu_oq}{4\pi}\times \dfrac{v}{r^2}[/tex]

q is charge moving with velocity v and r is distance from point at which field is calculated .

For alpha particle

[tex]B_1=\dfrac{\mu_o}{4\pi}\times \dfrac{2\times 1.6\times 10^{-19]\times 2.8\times 10^{5}}}{(8.25\times 10^{-9})^2}}[/tex]

= 0.1316 x 10⁻³ T

For electron

[tex]B_2=\dfrac{\mu_o}{4\pi}\times \dfrac{1.6\times 10^{-19}\times 2.8\times 10^{5}}{(8.25\times 10^{-9})^2}[/tex]

= .0658 x 10⁻³ T .

Both these magnetic field will be same in direction because direction of equivalent current is same for both the particles .

Hence

Total magnetic field

= B₁ + B₂ = .1974 x 10⁻³

= 1.974 x 10⁻⁴ T .

Hence the total magnetic field of the alpha particle will be = 1.974 x 10⁻⁴ T .

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If the crate is moving at a constant speed, then there is zero net force on the crate, and hence no work is required.

More specifically, by Newton's second law the net horizontal force on the crate is

F - 180 N = 0

where F is the magnitude of the applied force. The right side is zero since constant speed = no acceleration. Then F = 180 N.

Now,

• work done by F = (180 N) (6 m) = 1080 J

• work done by friction = (-180 N) (6 m) = -1080 J

so the total work W is

W = 1080 J - 1080 J = 0 J

Alternatively, by the work-energy theorem, the total work done on the crate is equal to the change in its kinetic energy. But constant speed means initial and final velocities are equal; if v is this speed, then

W = 1/2 (90 kg) v² - 1/2 (90 kg) v² = 0 J

A. It has equal numbers of each type of atom in its reactants and products.

a balanced chemical equation = number of elements on both side are equal

The basic unit of the measure of the rate of current flow in a conductor is ampere.

Option B) ampere is the correct answer.

Current is simply the rate of flow of charged particles such as electrons caused by:

An ampere is simply a unit of measure of the rate of current flowing through a conductor.

Ampere is the SI basic unit of electric current

Therefore, the basic unit of the measure of the rate of current flow in a conductor is ampere.

Option B) ampere is the correct answer.

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Answer:

B) ampere

Explanation:

IMA = inclined mechanical advantage = distance (L) : height (h)

the longer the track / distance the easier we lift it

C. carrying the piano up a long staircase with many steps spread apart

Answer:

Vy = V sin θ = 5.42 m/s * .907 = 4.91 m/s     initial vertical speed

Vy = a t = 0    at time it reaches maximum height

t = 4.91 m/s / 9.80 m/s^2 = .501      time to reach maximum height

A neutron star is considered as dense as the nucleus of an atom, and it represents a special type of star.

A neutron star is a special kind of star generated after the death of a giant star that produces a supernova.

These stars (neutron stars) have a diameter really small, e.g., an area of ten kilometers in diameter.

In conclusion, a neutron star is as dense as the nucleus of an atom, and it represents a special type of star.

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The magnitude and direction of the normal force will be 1.5N in the upward direction. Option A is correct.

The tension force is described as the force transferred through a rope, string, or wire as it is pulled by opposing forces.

The tension force is applied along the whole length of the wire, pulling energy equally on both ends.

The magnitude and direction of the normal force is found as;

[tex]\rm F_{net}=F_1-F_2 \\\\ \rm F_{net}=N\\\\ N=21.1 \ N - 19.6 \ N \\\\ N=1.5 \ N[/tex]

The grater force is in the upward direction. The magnitude and direction of the normal force will be 1.5N in the upward direction.

Hence,option A is correct.

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Answer:

1.5 N in the upward direction.

Explanation: