this is an opinion question but

explain why you think it is important to know the three different types of rocks.

Answer:

See in explanation

Explanation:

Scientific use: The Einstein's THEORY of relativity states that "Time Is Absolute".

Everyday use: Einstein's LAW of relativity says that time is not the same at all places and events.

Answer:

Almost every scientist has a theory about the things that they discover and if the things are un-explainable it is a scientific law.

The goverment has laws to keep people safe and important people have important theories if they are not there.

Explanation:

I hope this helps!

Answer:

the net force would be 3N in the upward direction since the two forces acting on the left and right of the object cancel out.

Explanation:

Answer:

The maximum radius the asteroid can have for her to be able to leave it entirely simply by jumping straight up is approximately 1782.45 meters

Explanation:

Whereby the height the astronaut can jump on Earth = 0.500 m, we have the following kinematic equation;

v² = u² - 2·g·h

Where;

v = The final velocity

u = The initial velocity

g = The acceleration due to gravity ≈ 9.8 m/s²

h = The height she jumps

At the maximum height, [tex]h_{max}[/tex] = 0.500 m, she jumps, v = 0, therefore, we have;

0² = u² - 2·g·[tex]h_{max}[/tex]

u² = 2 × 9.8 × 0.5 = 9.8

u = √9.8 ≈ 3.13

u = 3.13 m/s

Her initial jumping velocity ≈ 3.13 m/s

Escape velocity, [tex]v_e = \sqrt{\dfrac{2 \cdot G \cdot M}{r} }[/tex]

Where;

M = The mass of the asteroid

G = The Universal gravitational constant = 6.67408 × 10⁻¹¹ m³/(kg·s²)

r = The radius of the asteroid

The average density of the Earth = 5515 kg/m³

The mass of the asteroid, M = Density × Volume = 5515 kg/m³× 4/3 × π × r³

The escape velocity, she has, [tex]v_e[/tex] ≈ 3.13 m/s is therefore;

[tex]3.13 = \sqrt{\dfrac{2 \times 6.67408 \times 10^{-11} \times 5515 \times \frac{4}{3} \times \pi \times r^3}{r} } = r \times \sqrt{3.084 \times 10^{-6}}[/tex]

[tex]r = \dfrac{3.13}{ \sqrt{3.084 \times 10^{-6}}} \approx 1782.45[/tex]

Therefore, the maximum radius of the asteroid can have for her jumping velocity to be equal to the escape velocity for her to be able to leave it entirely simply by jumping straight up = r ≈ 1782.45 meters.

Question:

What happens to electrical energy that is used by objects in our homes? (1 point)

a It is absorbed by batteries.

b It is destroyed.

c It is stored in solar panels.

d It is transformed into other forms of energy.

Answer:

D

d. It is transformed into other forms of energy.

When electrical energy is used by objects in our homes, it is transformed into other forms of energy depending on the specific device or appliance. For example:

This transformation of electrical energy into other forms is governed by the principles of conservation of energy, which state that energy cannot be created or destroyed, only converted from one form to another. So, while electrical energy is consumed and "used up" by the devices in our homes, it is not destroyed but rather converted into different forms of energy that serve various purposes.

To learn more about electrical energy, here

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#SPJ2

Incomplete question. However, I inferred you want an explanation for the assertion above.

Explanation:

Interestingly, humans have a diverse thought process, it is this diversity that makes part of us want to control how others behave forgetting that humanity is part of nature; which is also diverse.

For example, we know humans do not wings to fly, it is not part of our nature. Similarly, others do not display affection the same we do today and are so we need to respect their nature; their personality.

Answer:

19.2m/s

Explanation:

Assuming that 2.4m/s^2 was the acceleration and not a typo, we can use the equation v=at, where v=velocity, a=acceleration, and t=time,

plug in known varibles,

v=2.4*8

v=19.2m/s

Answer:

Pluto is no longer considered a planet as a result of it's small size on the IAU scale.

Explanation:

The child's radial/centripetal acceleration at the lowest point of the swing is

a = (3.00 m/s)² / (7.00 m) = 1.29 m/s²

By Newton's second law, the tension in the rope is

T = (3.5 kg) (1.29 m/s²) = 4.5 N

(Does the question really say the child's mass is 3.5 kg? That's little more than the average mass of a newborn, about 3.3 kg. Not exactly a good idea to put a newborn on a swinging rope...)

Answer:

Energy

Explanation:

The amount of energy put in is less.

Answer:

energy

Explanation:

I'm not sure...

Answer:

[tex]D.490.5\ m[/tex]

Explanation:

[tex]We\ are\ given\ that,\\Acceleration\ due\ to\ gravity\ (On\ Earth)=9.81\ m/s^2\\Initial\ Velocity\ of\ the\ body=0\ m/s\\Time\ taken=10\ seconds\\Hence,\\From\ the\ Second\ Equation\ of\ Motion:\\S=ut+\frac{1}{2}at^2\\By\ reconstructing\ the\ equation:\\S=ut+ \frac{1}{2}gt^2\\Hence, here\\S=0*10+\frac{1}{2}*9.81*10^2\\S=\frac{1}{2}*981\\S=490.5\ m[/tex]

Answer:

Following are the solution to this question:

Explanation:

Please find the complete question and its solution in the attached file.

Answer: 0.4

Explanation:

Answer:

b. 0.4

Explanation:

Answer:

A pair of oxygen atoms is a molecule of oxygen. A molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms.

Explanation:

Answer:

height = 1.5 x 10⁶ m = 1500 km

Explanation:

We can use the formula of gravitational force from the Newton's Gravitational Law:

[tex]F = \frac{Gm_{1}m_{2}}{r^2}[/tex]

where,

F = Gravitational Force = 6.6 x 10³ N

G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²

m₁ = mass of earth = 6 x 10²⁴ kg

m₂ = mass of satellite = (1.02 tons)(1000 kg/1 ton) = 1.02 x 10³ kg

r = distance between center of earth and satellite = ?

Therefore, using these values in the equation, we get:

[tex]6.6\ x\ 10^3\ N = \frac{(6.67\ x\ 10^{-11} N.m^2/kg^2)(6\ x\ 10^{24} kg)(1.02\ x\ 10^3\ kg)}{r^2}\\\\r^2 = \frac{(6.67\ x\ 10^{-11} N.m^2/kg^2)(6\ x\ 10^{24} kg)(1.02\ x\ 10^3\ kg)}{6.6\ x\ 10^3\ N}\\\\[/tex]

[tex]r = \sqrt{61.84\ x\ 10^{12}\ m^2 }[/tex]

[tex]r = 7.86\ x\ 10^6 m[/tex]

The distance between center of earth and the satellite is equal to the sum of height of satellite and radius of earth:

[tex]r = height + radius\ of\ earth\\7.86\ x\ 10^6 m = height + 6.36\ x\ 10^6 m\\height = 7.86\ x\ 10^6 m - 6.36\ x\ 10^6 m[/tex]

height = 1.5 x 10⁶ m = 1500 km

Answer:

Variation

Explanation:

This explains variation because theres many different species in the question

Answer:

Homologous Structures

Answer:

Happy

Explanation:

They just look happy with theirselves

The statement that belongs to region X is  option (d)

(d) The main charge carriers are negative electrons

The reason for the selection is as follows;

The given region marked X belong to the NPN Transistor that has the following characteristics

The NPN transistor consist of a P-Type semiconductor sandwiched between two N-Type semiconductors

The charge carriers in a NPN transistor are negative electrons, while the charge carriers in a PNP transistor are holes

NPN transistor is the most commonly used type of BPT transistor due to the high mobility of electrons compared to holes

Electrons are passed from the emitter to the collector in an NPN transistor

Therefore, the statement that belongs only of the region marked X is that the main charge carriers are negative electrons

Learn more about semiconductors here;

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Heya!!

For calculate wavelength, lets applicate formula:

                                                      [tex]\boxed{\lambda = V/f}[/tex]

                                                   Δ   Being   Δ

                                            f = Frequency = 50 Hz

                                            v = Velocity = 340 m/s

                                             [tex]\lambda[/tex] = Wavelenght = ?

⇒ Let's replace according the formula:

[tex]\boxed{\lambda = 340\ m/s / 50 \ Hz }[/tex]

⇒ Resolving

[tex]\boxed{\lambda = 6,8\ m}[/tex]

Result:

The wavelength is 6,8 meters.

Good Luck!!

What she need to know in order to find the object’s momentum will be its mass. The correct answer is option A

Momentum is the product of mass of a body and its velocity. That is,

Momentum = mass x velocity

The S.I unit is Kgm/s

If Anya knows the velocity of an object. What she need to know in order to find the object’s momentum will be its mass.

Therefore, the correct answer is option A

Learn more about Momentum here : https://brainly.com/question/402617

Answer:

684.5 is the weight on mars and 1813 on earth

Explanation:

185*3.7=684.5 185*9.8=1813 you multiply for earth by 9.8 because that's the gravity on earth and you multiply by 3.7 because that's the gravity on mars

684.5 is the weight on mars and 1813 on earth

Weight on mars:

[tex]= 185 \times 3.7[/tex]

= 684.50

And, weight on earth is

 [tex]= 185\times 9.8[/tex]

=1813

Learn more: https://brainly.com/question/20492533?referrer=searchResults

Answer:

v = 28.87 m/s

Explanation:

Given that,

Mass of a cubic tiger, m = 146 kg

Initial velocity, u = -22 m/s

Acceleration, a = -0.43 m/s²

Distance moved, s = -407 m

We need to find the final velocity of the tiger. Using third equation of motion to find it. Let v is the final velocity of the tiger.

[tex]v^2-u^2=2as\\\\v^2=(-22)^2+2\times (-0.43)\times (-407)\\\\=28.87\ m/s[/tex]

So, the final velocity of the tiger is 28.87 m/s.

Answer:

3.6 kg*m^2/s

Explanation:

The angular momentum equals mvr, where m is the mass, v is the velocity, and r is the radius or rotational arm. Inputting these values, we can find the angular momentum.

Angular momentum = (1.5 kg)(3.0 m/s)(0.8 m) = 3.6 kg*m^2/s

I hope this helps! :)

Answer:

3.6 kg is the answer

Explanation:

becuase 8/3 = 3.6

Answer:A:

To analyze how a gizzard works.

Explanation:

Answer:

3 kg

Explanation:

weight= 9.8x mass

Mass=weight /9.8=30/9.8=3.06kg

I hope it helps

Answer:

The student hears the wave that is transmitted by the desk

Explanation:

Mechanical waves need a material medium to be able to be transmitted, in the case of sound waves, one of the most common media is air, but it is also transmitted in other media in this case, stationery is transmitted.

The student hears the wave that is transmitted by the desk

The speed of the wave is proportional to the density of the material, so the wave that the student hears arrives much faster through the desk than through the air

Answer:

products

Explanation:

Answer:

The greater wax moth developed the ability to hear frequencies up to 300kHz to trick bats, their chief predators.

Explanation:

Dogs commonly listen to frequencies of about 30 kHz. But nothing matches the moths 300-kHz maximum. Since there aren't any noises in an environment that get close, scientists hypothesize that greater wax moths developed super sensitive hearings to trick bats, their chief predators. it can hear wavelengths up to 300 kHz, well exceeding the range of any other creature and higher than any bat can sound.