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Answer:

Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.

Explanation:

Hope this helps maybe...

Answer:

H = Vo t + 1/2 g t^2

Velocity and gravitational acceleration are vector quantities - it is very important to use the correct signs for these quantities to get the correct quantity for H the distance traveled.

Answer:

12.39m/s²

Explanation:

use the formula a=v-u

t

The wavelength at which the radiation is strongest is given by Wien's displacement law, and the overall power emitted per unit area is given by the Stefan–Boltzmann law. So, as temperature increases, the glow color changes from red to yellow to white to blue.

Answer:

por ver cp

Explanation:

sisisi cp osea caldo de pollo

Answer:

Speed

Explanation:

There is no other information that involves or asks about the velocity or acceleration. Since that rules out two you will be left with one only option.

Answer:

they are still keeping the physical componets justbin a different shape

Explanation:

Answer:

As an ice cube melts, its shape changes as it acquires the ability to flow. However, its composition does not change. Melting is an example of a physical change .

4.55 seconds

Given, Speed = 330.0 m/s

To find the time, it will take for the sound of thunder to travel 1.5 km, we have to apply the formula for speed :

[tex]speed = \frac{distance}{time} [/tex]

This implies that:-

[tex]time = \frac{distance}{speed} [/tex]

So, Let's get started with the steps -

Step 1- Convert 1.5 km to metres.

[tex]1.5 \: km \: \\ = > \: 1.5 \times 1000 \\ = > 1500 \: m[/tex]

Step 2- Now, to get time, substitute the values you got now in "time=distance/speed"

[tex]t = \frac{1500}{330}[/tex]

[tex] => t = 4.55 \: seconds[/tex]

Therefore, the answer is 4.55 seconds

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Answer:

Electric Field intensity is zero.

The reason for that is:

All charges are placed at equal distances from the center of the square and have same magnitude and sign. This means they will exert equal and opposite forces on the test charge at the center. Net force will become Zero.

From the graph, the segments that move the greatest distance are AB and DE.

We have,

From the graph,

The y-axis is the speed.

The x-axis is the time.

This means,

Speed = Distance / Time

So,

The horizontal line is the distance.

Now,

There are 5 points: A, B, C, D, and E.

There are four parts:

AB, BC, CD, and DE.

On the graph.

So,

I part = 1/3 = 0.33

The distance covered in each part is:

AB = 2 parts = 2 x 0.33 = 0.66

BC = 1 part = 0.33

CD = 1 part = 0.33

DE = 2 parts = 2 x 0.33 = 0.66

Thus,

The segments that move the greatest distance are AB and DE.

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Answer:

its B

Explanation:

It's B & A at the same time because A. a roller coaster uses brakes to slow down and stop. B is the most reasonable answer. Because all roller coasters go up and over a second time over the hill, but they also slow down. But go with B.

TELL ME IF I´M RITE

Answer:

Explanation: actually for moving it in an CONSTANT velocity u need a zero accleration

F-f=ma,a=0 hence F=f=Nα=mgα=1,495.63 N

Answer:

Below

Explanation:

To find the acceleration of the car you can use this formula :

     vf = vi + at OR a = v/t

I'm going to use the first one because it explains the steps more clearly :

vf = 24 m/s

vi = 0 m/s

t = 9.4 s

a = ?

     24m/s = 0 + (a)(9.4s)

     24m/s = a9.4

Divide both sides by 9.4

     a = 2.55319 m/s^2

Round to 3 sig figs

     a = 2.6 m/s^2

Hope this helps! Best of luck <3

An

A continuación, se explicará la incidencia que este recurso formal tiene en el significado completo del poema.  

Answer:

D.

Explanation:

DId the test

The gravitational force acting on the body of mass 53 Kg on earth will be 530 Newtons.

Weight is the force exerted by earth on a body on the surface of earth. Mathematically -

W = mg

Given is a 53 kg object standing on the surface of the Earth.

The gravitational force acting on the body will be same as it weight and will be directed towards the center of earth. Using the formula for weight -

W = mg = 53 x 10 = 530 N                [taken g = 10 m/s²]

Therefore, the gravitational force acting on the body of mass 53 Kg on earth will be 530 Newtons.

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Answer:

Explanation:

a.

b. R3= 1/2R2=6 ôm

R12= R1+R2=20 ôm

Rtđ=R12.R3/R12+R3= 4,62 ôm

c. U= I.Rtđ = 2.4,62=9,23 V

I1=I2= 9,23/20= 0,4615 A

I3= 2-0,4615=1,5385 A

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

mass = 7 kg

acceleration = 6 m/s²

We have

force = 7 × 6 = 42

We have the final answer as

Hope this helps you

Answer:

Pedometers are designed to detect vertical movement at the hip and so measure the number of steps and provide an estimate of distance walked. They cannot provide information on the temporal pattern of physical activity or the time spent in different activity at different intensity.

Answer:

B

Explanation:

that is the only way you can sit

Answer:

:)

Explanation:

Raindrops fall on the earth due to gravitational field force. When two magnets come closer to each other, they will either attract or repel each other, which is magnetic field force examples. Without any physical contact, iron pins get attracted towards the magnet as a field force.

Answer:

The answer is B.

Explanation:

A Block has a density of 0.97 g/cm 3. That is why 97 percent of the ice will sink in below the water.

Answer:

I am pretty sure that it is A. The Sun and all the planets revolve around Earth. Hope this helps!!!!!

Explanation:

Explanation:

Power=work done/time

=> 12kJ/6s = 12000J/6s = 2000W = 2kW.

hope this helps you

Answer:

It's Real...

Explanation:

Answer:

Israel Is Part of the Holy Land

Explanation:

Answer:

IN THE EXPLANATION!!

Explanation:

Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth.

Answer:

atmospheric pressure is the pressure exerted on the Earth's surface due to weight of air above it.

The horizontal distance that the cannonball will travel is 383.33m

In order to find the horizontal distance, we will use the formula for calculating the range expressed as:

[tex]R = u\sqrt{\frac{2H}{g} }[/tex] where:

u is the velocity

H is the height

g is the acceleration due to gravity

[tex]R = 120\sqrt{\frac{2(50)}{9.8} }\\R = 120\sqrt{\frac{100}{9.8} } \\R=120\times 3.1943\\R=383.33m[/tex]

Hence the horizontal distance that the cannonball will travel is 383.33m

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