I need help this is for physical Science! (need asap)

The gravitational potential energy of the  1000kg car relative to the bottom of the hill is 1666L (J).

The gravitational potential energy of the car relative to the bottom of the hill is calculated as follows;

P.E = mgh

where;

Let the slant height of the hill,  = L

h = L sinθ

h = Lsin(10)

h = 0.17L

P.E = mg(0.17L)

P.E = 1000 x 9.8 x 0.17L

P.E = 1666L (J)

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Answer:

Explanation:

All of the planets listed are classified as "Gas Giants" due to them being much larger than the terrestrial rocky planets. They are also strictly composed of gaseous elements such as nitrogen, hydrogen, methane, etc.. Both A and B are correct. I am unsure if you can choose more than one.

Answer:

they are all large, gaseous planetary bodies

Explanation:

i took the quiz

Two light waves will interfere constructively if the path-length difference between them is a whole number.

The principle of superposition state that, when two or more waves meet at a point, the resultant displacement at that point is equal to the sum of the displacements of the individual waves at that point.

Interference of waves can either be constructive, or destructive.

The two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is a whole number of wavelenght 1λ, 2λ, 3λ, 4λ etc

The equivalent phase differences between the waves will be 2[tex]\pi[/tex] or 360 degrees, 4[tex]\pi[/tex] or 720 degrees, 6[tex]\pi[/tex] 1080 degrees etc

Therefore, the two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is a whole number.

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Explanation:

T=1/f

So if frequency increases the period will decrease

Answer:

newtons per kilogram (n/kg)

Explanation:

It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.

Answer:

A: Anxious

Explanation:

got a 100% of Edge

The conclusion you make about the relative orientation of the mirrors is that multiple images are created by multiple reflections between two flat mirrors.

What are mirrors: The law of reflection helps explain how a mirror is characterized as a reflecting surface.

In conclusion, When two mirrors are parallel to each other, the number of reflecton is infinite.This also depends on your point of view.

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(a) The angular speed of the loops is 6.284 rad/s.

(b) The area of one loop is 0.071 m².

(c) The maximum emf of the generator is 111.54 V.

(d) The rms emf of the generator 78.87 V.

The angular speed of the loop is calculated as follows;

[tex]\omega = 60 \ \frac{rev}{\min} \times \frac{2\pi \ rad}{1 \ rev} \times \frac{1 \min}{60 \ s} \\\\\omega = 6.284 \ rad/s[/tex]

The area of the loop is calculated as follows;

A = πr²

A = π x (0.15)²

A = 0.071 m²

emf(max) = NBAω

emf(max) = (250) x (1) x (0.071) x (6.284)

emf(max) = 111.54 V

[tex]V_{rms} = \frac{V_0}{\sqrt{2} } \\\\V_{rms} = \frac{111.54}{\sqrt{2} } \\\\V_{rms} = 78.87 \ V[/tex]

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Answer: 15.35 m/s

Explanation: 15.35 m/s

[tex]$$From the Doppler effect$$f^{\prime}=\left(\frac{v \pm v_{0}}{v \pm v_{s}}\right) f_{s}$$[/tex]

[tex]\begin{aligned}&f^{\prime}=1920 \mathrm{~Hz} ; \ \ V=343 \mathrm{~m} / \mathrm{s} \\&f=2010 \mathrm \ \text{{H}z} \\&V_S=0 \text { As police car is stationary }\end{aligned}[/tex]

[tex]\begin{aligned}1920 &=\left(\frac{343 \pm v_{0}}{343}\right) \times 2010 \\1920 &=\left(\frac{343-v_{0}}{343}\right) \times 2010 \\ -v_{0} &=-15.35 \mathrm{~m/s} \\v_{0} &=15.35 \mathrm{~m} / \mathrm{s}\end{aligned}[/tex]

Therefore, the second car is driving at 15.35 m/s

A loaded spring undergoes simple harmonic motion whose period is proportional to the mass and inversely proportional to the spring constant.

Simple harmonic motion is the periodic motion of an object along a straight line, such that the acceleration of the object is directed towards a fixed point on that line and is proportional to its distance from that point.

Example of a simple harmonic motion is the motion of a loaded spiral spring.

The restoring force on the spring is directly proportional to the extension of the spring and the spring constant.

The period of motion, T when a mass, m is attached to a spring with spring constant k,is given as:

Therefore, a loaded spring undergoes simple harmonic motion whose period is proportional to the mass and inversely proportional to the spring constant.

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Answer:

Character flaws that I feel I have are:

Answer:

normal contact force

Explanation:

that is the equal and opposite force (as to weight) applied by the table on to the object.

The gravitational force of the earth on the object and the reaction force of the table on the object interact as a pair of forces.

The gravitational force is what pulls things with mass in the same direction. People commonly think about the Earth's gravitational pull. Your body is kept on the ground by this force. Yet, gravity pulls all objects with mass in the same direction.

The gravitational force, or g, is the force that the earth exerts on an object, with g equal to 9.8 m/s2.

The information is ,

Place something on the table.

Now that the item is at rest, a force known as gravitational force pushes it downward from the Earth.

The formula for gravitational force is F = mg, where m is the object's mass.

Moreover, Newton's third law states that every action will always have a corresponding and opposing reaction. When the gravitational force acting between two masses is equal in strength and conducted in the opposite direction, an action and reaction pair is produced.

The reaction force is then given by R = -mg, where m is the object's mass and the negative sign denotes that the force is acting in the opposite direction to that of gravity by earth.

Hence , the interaction pair for gravitational is the reaction force

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Answer:

.376 m

Explanation:

c = speed of light = 3 x 10^8 m/s

c = wavelength * freq

3 x 10^8 = 7.98 x 10^8  * f

f = .376 meters

Answer:

I would say C

Explanation:

seasons are cause by the tilt in the Earths axis of rotation as it revolves around the sun.

Answer:

It doesn’t it may burn the road a little but nothing much other than that I can think ok

Explanation:

For a radius of diatomic molecules is approximately 2.3 ×10-10 m, the  pressure in Pa is mathematically given as

P=0.134Pa

Generally, the equation for the ideal gas  is mathematically given as

PV=nRT

Therefore

[tex]P=\frac{1kT}{\sqrt{2}\pi(p)d^2}[/tex]

[tex]P=\frac{1.38*10^-23*293}{\sqrt{2}\pi*(2*1.3*10^{-10})^2)*0.1}[/tex]

P=0.134Pa

In conclusion, Pressure

P=0.134Pa

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Density is a physical property that describes the relationship between mass and volume. Density is the amount of matter in a given space, or volume.

The frequency of the light with the given wavelength in water is 3.75 × 10¹⁴ Hz.

Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.

Both frequency and wavelength are inversely proportional to each other.

Using the wavelength, frequecy and speed relation;

λ = v / f

Where λ is wavelength, v is speed and f is frequency.

Given the data in the question;

We know that frquency in water is the same as frequecy in air, it doesnt change due to medium.

From the expression above, the frequency of the light will be;

λ = v / f

f = Vw / λw

But,

Refractive index u = velocity of light in air / velocity of light in medium ( water )

So,

Vw = ( 3×10⁸m/s × 1 ) / 1.33

Vw = 2.25 × 10⁸m/s

Hence,

f = Vw / λw

f = ( 2.25 × 10⁸m/s ) / ( 6.0 × 10⁻⁷m )

f = 3.75 × 10¹⁴ s⁻¹

f = 3.75 × 10¹⁴ Hz

Therefore, the frequency of light that with the given wavelength in water is 3.75 × 10¹⁴ Hz.

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For a current is passing through a straight wire, the Magnetic field is mathematically given as,

B=5.535*10^5T.

Generally, the equation for the Magnetic field  is mathematically given as

[tex]B=\frac{\mu i}{ 2 \pi r}[/tex]

Therefore

[tex]B=\frac{4 \pi *10^{-7}*4.2.28}{2 \pi (1.6*10^-2)}[/tex]

B=5.535*10^5T

In conclusion, the magnetic field

B=5.535*10^5T

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Answer: A. There is a strict definition of abnormal behavior based on an established set of social norms.

Forgive me if I’m wrong :C

Echo is a reflection of sound waves.  If the distance is increased, we hear the sound in  more than twice the former time.

The term echo has to do with the reflection of sound waves. We know that when sound waves are reflected, we hear the sound as the echo.

Now, the time that it takes us to hear the echo depends on the distance between the observer and the depth of the well. If the distance is increased, we hear the sound in more than twice the former time.

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The correct statement will be "At a depth of 30 m/99 ft, gas molecules in a flexible container will be packed four times more closely together than they will be at the surface."

Generally, a gas molecule is simply defined as a combination of numbers of atoms that are connected one to another.

In conclusion, The deeper gas molecules go in a surface the more compact they become

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The magnitude of the acceleration a of the astronaut during the throw of the 3.2 kg tool is determined as (18.88)/m.

Based on Newton's third law of motion, the force applied to the tool by the atronaut is equal to the force exerted on the astronaut by the tool.

Fa = - Fb

where;

Fa = (3.2 x 5.9)

Fa = 18.88 N

Fa = m x a

where;

a = Fa/m

a = (18.88)/m

Thus, the magnitude of the acceleration a of the astronaut during the throw of the 3.2 kg tool is determined as (18.88)/m.

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grow alot of plants that's help to make more h2o

Answer:

Which ideas did you include in your answer? Check all that apply.

Droughts can cause the geosphere to be very dry.

Droughts can affect the survival of organisms in the biosphere.

Droughts can affect the amount of water in the hydrosphere.

Droughts can affect the amount of water vapor in the atmosphere.

Explanation:

Answer:

thermal mass is the ability of a material to absorb, store and release heat... Materials such as concrete, bricks, and tiles absorb and store heat, And then they have Thermal mass.

Explanation:

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!

Answer:

The sun is mainly made up of 75 percent hydrogen and 25 percent helium by mass; the sun's is also composed of less than 0.1 percent various metals and elements, including neon, iron, oxygen and carbon. These atoms form hot plasma that is interwoven with the sun´s magnetic fields.

Hope i helped :)

Explanation:

Equilateral triangle means each interior angle has measure 60°

We need the resultant which is our dipole

[tex]\\ \rm\Rrightarrow R=\sqrt{A^2+B^2+2ABcos\theta}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{(q\ell)²+(q\ell)²+2(q\ell)(q\ell)cos60°}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{(q\ell)^2+(q\ell)^2+(q\ell)^2}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{3(q\ell)^2}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{3}{q\ell}[/tex]