Three materials, put them in order of what
light does when it hits them.
clay, shiny dimes, eyeglasses

Answer:

Explanation:

During the formation of the universe some 14 billion years ago in the so-called ‘Big Bang’, only the lightest elements were formed – hydrogen and helium along with trace amounts of lithium and beryllium. As the cloud of cosmic dust and gases from the Big Bang cooled, stars formed, and these then grouped together to form galaxies.

Answer:

A

Explanation:

if its wronge im so sorry

Answer:

60cm

Explanation:

30+30=60

Answer:

[tex]power = \frac{(force \times distance)}{(time)} \\ power = \frac{(20 \times 10)}{4} \\ power = \frac{200}{4} \\ power = 50 \: watts[/tex]

Answer:

9172.8 N

Explanation:

F = ma

F = (936 kg)(9.8 m/s^2)

F = 9172.8 N

Answer: black holes

Explanation:

Answer:

1.91 × 10⁸ m/s

Explanation:

[tex]n = \frac{c}{v} \\ 1.57 = \frac{3.0 \times {10}^{8} }{v} \\ v = 1.91 \times {10}^{8} \: ms {}^{ - 1} [/tex]

The speed of light in a medium if the index of refraction is 1.57 is 1.91 * 10⁸ m/s

The refractive index of a material is the ratio of speed of light in air to speed of light in the medium. It is given by:

Refractive index(n) = speed of light in air(c) / speed of light in material(v)

Given that n = 1.57, c = 3 * 10⁸ m/s, hence:

n = c/v

1.57 = 3 * 10⁸ / v

v = 1.91 * 10⁸ m/s

The speed of light in a medium if the index of refraction is 1.57 is 1.91 * 10⁸ m/s

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Answer:

The rate of reaction A is higher.

answer is AAAAA !

Explanation:

Answer: A. The rate of reaction A is higher

Explanation:

Answer:

 U = 2,195 10⁵ J

Explanation:

The potential energy is

      U = m g and

in this case each person has a mass of 75 kg and the elevator has a mass of 500 kg, the total mass is

 m_total = m_elevator + 4 m_person

      m_total = 500 + 4 75

      m_toal = 800 kg

let's calculate

       U = 800 9.8 28

       U = 2,195 10⁵ J

Answer:

Explanation:

If the Moon rotated as fast as the Earth would we only see one side of the Moon? ... The Moon, on the other hand, rotates once around its own axis every 28 days, and once around the Earth in that same 28 days. The end result of this combination is that the same side of the Moon is always facing the Earth.

Answer:

If the Moon rotated as fast as the Earth would we only see one side of the Moon? ... The Moon, on the other hand, rotates once around its own axis every 28 days, and once around the Earth in that same 28 days. The end result of this combination is that the same side of the Moon is always facing the Earth.

Explanation:

Answer:

child i dont even know the answer for this question

Explanation:

Answer:

C. gravitational

Explanation:

Answer:

c

Explanation:

edge

Answer:1,3 and 5

Explanation:

Answer:

1/f =1/v+1/u

Explanation:

Answer:intensity of an electric field (E)

charge (q)

Force (F)

E=F/q

E=20N/.5C

E=40N/C

Explanation:

The Electric field intensity will be  40 N/C

The electric field intensity at a point is the force experienced by a unit positive charge placed at that point.

Electric field intensity(E) = force (F)/ charge(q)

given

charge = 0.50 C

Force = 20 N

Electric field intensity = ?

E = 20 N / 0.50 C

E = 40 N/C

The Electric field intensity will be  40 N/C

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Answer:

its warmer than outside in winter and its colder than outside in summer

Explanation:

The perception of warmth or coolness is relative to the temperature difference between the body and the environment. Even though the temperature inside the room remains constant year-round, the relative temperature difference between the environment outside and the room can cause a subjective sensation of warmth or coolness.

Temperature is a physical quantity that measures the degree of hotness or coldness of a body or a substance. It is a scalar quantity, which means it has only a magnitude and no direction.

The SI unit of temperature is the Kelvin (K), but the temperature is commonly measured in degrees Celsius (°C) or degrees Fahrenheit (°F) as well.

The temperature difference is the numerical value of the difference between the temperatures of two objects or substances. It represents the amount of heat that flows from one object to another due to the temperature gradient between them. The temperature difference is also a scalar quantity, and its unit is usually expressed in degrees Celsius or Kelvin.

The temperature difference is important in many areas of science and engineering, including thermodynamics, heat transfer, and meteorology. It is also used to measure the efficiency of heating and cooling systems, such as air conditioners and refrigerators.

Here in this question,

This phenomenon occurs due to the relative difference in temperature between the environment outside and the temperature inside the room. The feeling of warmth or coolness is a subjective sensation that depends not only on the actual temperature but also on the difference in temperature between the person's body and their surroundings.

During the winter, the temperature outside is generally colder than the temperature inside the room which is kept at a constant temperature. When a person comes into the room from the cold outside, their body temperature is lower than the room temperature, so they feel warmer inside the room. This is because the heat from the warm room transfers to the person's body, raising their body temperature and making them feel warmer.

On the other hand, during the summer, the temperature outside is usually warmer than the temperature inside the room. When a person comes into the room from the hot outside, their body temperature is higher than the room temperature, so they feel cooler inside the room. This is because the heat from the person's body transfers to the cooler room, lowering their body temperature and making them feel cooler.

Therefore, the relative temperature difference between the environment outside and the room can cause a subjective sensation of warmth or coolness.

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Answer:

I would say tunnel vision cause your only using one eye and if your looking through a tiny space your vision gets blury

Explanation:

Answer:

V=IR

V=0.8×2.5

V=2V

where V=potential difference

I=Current

R=Resistance

.........

Answer:

V

Explanation:

The S. I unit for voltage is v due to the fact that it's volts.

Answer:

2 [tex]m/s^{2}[/tex]

Explanation:

Acceleration = [tex]\frac{Final velocity-Initial velocity}{Time}[/tex]

= [tex]\frac{20 - 10}{5}[/tex]

= [tex]\frac{10}{5}[/tex]

= 2 [tex]m/s^{2}[/tex]

Answer:

The Light was reflected, b.

Explanation:

If the flashlight was pointed at the mirror, it was reflected because it did not stop on the mirror or go through the mirror or reflect in different ways.

Force required to accelerate 10 kg object to 5.9 m/s/s ?

Mass = 10 kg

Acceleration = 5.9 m/s^2

Force = Mass * Acceleration

Force = 10 kg * 5.9 m/s^2

Force = 59 kg m /s^2 = 59 N

Answer:

a) The distance after 1 minute will be x = 600 m.

b) The distance of vertical drop from A to B is  [tex]\Delta y=17658\: m[/tex].

Explanation:

Let's use the parabolic motion equations. Here we have a horizontal initial velocity, and knowing that the horizontal velocity is a constant we have:

a)

[tex]v_{x}=\frac{\Delta x}{\Delta t}[/tex]    (1)

Where:

Usinf (1) we find Δx:

[tex]\Delta x=v_{x}\Delta t[/tex]    

[tex]\Delta x=10*60=600 m[/tex]      

Therefore, the distance after 1 minute will be x = 600 m

b)

Here we need to find Δy = y(A)-y(B), this is the distance of vertical drop from A to B.

Using the following equation we will get it:

[tex]y_{B}=y_{A}+v_{iy}t-\frac{1}{2}gt^{2}[/tex]

Let's recall that the initial velocity in the y-direction is 0.

[tex]y_{A}-y_{B}=0t+\frac{1}{2}gt^{2}[/tex]

[tex]\Delta y=\frac{1}{2}gt^{2}[/tex]

[tex]\Delta y=\frac{1}{2}(9.81)(60)^{2}[/tex]  

[tex]\Delta y=17658\: m[/tex]  

Therefore, the distance of vertical drop from A to B is  [tex]\Delta y=17658\: m[/tex].

I hope it helps you!

Answer:

are used by geneticists to determine the probability of different offspring genotypes.