light strikes a 5.0-cm thick sheet of glass at an angle of incidence in air of 50°. the sheet has parallel faces and the glass has an index of refraction 1.50. a. what is the angle of refraction in the glass? b. after traveling through the glass the light re-emerges into the air. what is the final angle of refraction in air? c. as it leaves the glass, by what distance is the path of the ray is displaced from what it was before entering the glass?

The sun is Yellow, red, orange, and blue. Therefore option B is correct.

The star is moving toward an observer. Therefore option B is correct.

39. The type of radioactive decay represented by the equation provided Gamma. Therefore option A is correct.

40. The statement is completed correctly by the information which states that the coal in Alberta has a lower carbon content than coal in other parts of Canada, resulting in reduced greenhouse gas emissions.

29. graph B depicts the relationship between gravitational field strength and the mass of the International Space Station orbiting Earth.

30. The correct sequence of colors representing the changing temperature from the surface to the atmosphere of the sun is Yellow, red, orange, and blue. Therefore option B is correct.

1. When a star undergoes a blue shift, it indicates that the star is moving toward an observer. Therefore option B is correct.

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Pitch of a micrometer screw gauge The pitch of a micrometer screw gauge is 1 mm and there are 100 divisions on the circular scale. It follows that: The value of one circular scale division isPitch (P) = 1mm / 100 = 0.01 mmMeasuring the diameter of a wire.

Using the micrometer screw gauge, while measuring the diameter of a wire, the linear scale reads 1 mm and 47th division on the circular scale lines up with the reference line. Hence, the diameter D of the wire is: D = (1 + 0.47 × 0.01) mm = 1.0047 mm, The length L of the wire is 5.6 cm.

Therefore, the circumference C of the wire is: C = π D = π × 1.0047 mm = 3.159 mmNote: π = 3.1416 is used instead of π = 22/7 to avoid rounding-off errors. The curved surface area of the wire is: A = C L = 3.159 × 5.6 cm2 = 17.7044 cm2 = 17.7 cm2 (to one decimal place)Therefore, the curved surface area (in cm2) of the wire is 17.7 cm2.The correct option is not among the given options.

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Answer:

yes

because they love you

The car will come to rest 15 meters in front of the tree.

To solve this problem, we can use the following kinematic equation:

v^2 = u^2 + 2ad

where:

v is the final velocity (0 m/s)

u is the initial velocity (25 m/s)

a is the acceleration (-5 m/s^2)

d is the distance traveled (unknown)

Plugging in these values, we get:

0^2 = 25^2 + 2(-5)d

-625 = -10d

d = 62.5 m

Therefore, the car will travel 62.5 meters before coming to rest. Since the tree is 65 meters away, the car will come to rest 15 meters in front of the tree.

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Answer: Fg < Fq

Explanation: just took the lab test edge 2020

The electromagnetic force is greater than the gravitational force option third Fg < Fq is correct.

It is a force imposed by one charge on another as a result of the field. The electrostatic force produced by one line charge on another line charge separated by r is determined by the charge potency of each charge as well as the separation distance between them.

Force of gravity is given by:

\(\rm F_g=\dfrac{Gm_1m_2}{r^2}\)

The electrostatic force is given by:

\(\rm F_q = \dfrac{kq_1q_2}{r^2}\)

On the atomic scale, electrons, for example, have very little mass but a very large charge. As a result, electromagnetic forces rule.

Thus, the electromagnetic force is greater than the gravitational force option third Fg < Fq is correct.

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The buoyant force experienced by an object fully submerged in a fluid is given by the formula:

where Fb is the buoyant force, p is the density of the fluid, g is the acceleration due to gravity, and V is the volume of the object.

If you are given the volume and density of the ball and the density of the water, you can use this formula to calculate the buoyant force experienced by the ball. Simply plug in the appropriate values for p (the density of the water), g (the acceleration due to gravity, which is approximately 9.81 m/s^2 on Earth), and V (the volume of the ball).

It's important to note that this formula only applies to objects that are fully submerged in the fluid. If the object is partially submerged, the buoyant force will be less than what is calculated using this formula. In this case, you would need to take into account the volume of the object that is submerged in the fluid in order to calculate the buoyant force accurately.

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Answer:

C

Explanation:

I would have to say C because the girl is constantly moving in the act of serving the volleyball.

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

mounted horsemen who pledged to defend their lords’ lands in exchange for fiefs

Answer:

A. How long will it take for the ball to reach the top of its path

Answer:

a. X: Slower in gases than liquids Y: Faster in solids than gases Z: Velocity depends on medium.

Explanation:

Speed of sound is fastest in solids. Sound waves travel more quickly in solid, than of liquid and gases. Sound waves travel most slowest in gases. Speed of sound varies significantly and it depends upon medium it is travelling through.  In more rigid medium sounds velocity will be faster.

Answer:

b : 60m

Explanation:

when a plane mirror is placed horizontally on a level ground at a distance of 60m from the top of tower as shown in figure. a/c to question, The top of tower and its image in the mirror subtend an angle of 90° at the eyes. so, angle made by top of tower and horizontal line is 45° as

Answer:

presence or absence of wind

Explanation:

When establishing a relationship between two variables the effect one variable has on the other is studied. The variable that changes with respect to the other is the dependent variable while the other variable is called the independent variable.

Here the distance the football covers in the presence and absence of wind is studied. So, the presence or absence of wind is the independent variable.

Answer:

Explanation: Sorry sister

The term that describes weathering breaks down the rock. Weathering is the breakdown of rocks, soil, and other geological material under the influence of physical, chemical, or biological agents.

The term weathering refers to a variety of processes that wear away or weaken rocks over time. Weathering is classified into two categories: chemical and physical. Chemical weathering occurs when rock is chemically broken down by reactions with acid rain or other chemicals.

Physical weathering, on the other hand, occurs when rock is broken down into smaller pieces by water, wind, ice, or other forces that do not change the chemical composition of the rock. In conclusion, the term that describes weathering is breaking down the rock.

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Answer:

is it George Lemaitre?

Explanation:

sorry if i'm not helpful

Answer:

5mu = carry a vaulting pole ( 12 m/s) Also

fast

All the vaulter's kinetic energy is transformed into gravitational potential energy. 7.35m is the that person's height.

Kinetic energy is the energy that an object has as a result of its movement. If we want to accelerate an object, we must apply force to it. Using force requires us to put in effort. After work is completed, energy is transferred to the object, and the object moves at a new constant speed.

The two most important factors influencing kinetic energy are mass and speed. Because an object's motion is determined by its velocity as well as its mass, though velocity is th

Given:

v = 12m/s

g = 9.8 m/s²

Kinetic energy = potential energy

K.E = P.E

1/2 mv² = mgH

H = v² /2g

H = 7.35m

Thus, 7.35m is the that person's height.

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Answer:

Below :)

Explanation:

It is the powerhouse of the cell and creates chemical energy.

The focal length of a mirror is the distance between the mirror and the point where the reflected light rays converge. The focal length of a makeup mirror with a power of 1.25 d is 0.80 m.

The focal length of a mirror depends on the curvature of the mirror surface and is a fundamental property of the mirror. The power of a lens is given by the formula
P = 1/f,
where P is the power of the lens in diopters and f is the focal length of the lens in meters.
Rearranging this formula, we get,
f = 1/P
Substituting the given value of power, we get:
f = 1/1.25 d = 0.80 m
Therefore, the focal length of the makeup mirror is 0.80 m.

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Answer:

As the voltage increases, the current flowing through the circuit increases while the resistance of the resistor remains constant.

Explanation:

Ohm's law states that the current flowing through a circuit is directly proportional to the applied voltage.

V = IR

where;

I is the current

R is the resistance

V is the applied voltage

Based on this law (Ohm's law), as the voltage increases, the current flowing through the circuit increases while the resistance of the resistor remains constant.

Because the number of electrons and protons in a neutral atom is the same, this atom's charge is zero.

The number of electrons in a neutral atom is the same as the number of protons. In the case of this atom, there are 19 electrons and 20 protons, resulting in a charge of +1. This atom is a cation since it has more protons than electrons.The atomic number of an element is determined by the number of protons in its nucleus, and it is represented by the symbol Z. The total number of protons and neutrons in an atom's nucleus is called its mass number, and it is represented by the symbol A. The number of neutrons in an atom can be determined by subtracting the atomic number (Z) from the mass number (A).In this particular atom, there are 20 protons and 15 neutrons. The mass number is 20 + 15 = 35. The atomic number, on the other hand, is 20. As a result, this element is a neutral atom with 20 electrons.

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Answer:

\(\huge\boxed{\sf d = 3590.76\ m}\)

Explanation:

Velocity = v = 11.5 m/s

Time = t = 312.24 s

Displacement = d = ?

d = v × t

d = 11.5 × 312.24

\(\rule[225]{225}{2}\)

Answer:

C. Newton

Explanation:

hope this helped:)

The Apollo program provided valuable information about the moon, including 400 kilograms of lunar samples that contain both metals and volatile materials.

The Apollo program, particularly the Apollo lunar missions, significantly expanded our understanding of the moon. Through the missions, astronauts collected approximately 400 kilograms of lunar samples, which have since been extensively studied by scientists.

These samples have provided valuable insights into the moon's composition, structure, and geological history. The lunar samples obtained from the Apollo missions contain a diverse range of materials, including both metals and volatile substances.

The metallic components found in the lunar samples have offered crucial information about the moon's mineralogy, such as the presence of iron, titanium, and aluminum. These metals have provided clues about the processes involved in the moon's formation and subsequent evolution.

Additionally, the lunar samples have revealed the presence of volatile materials, which are substances that easily vaporize at low temperatures. These volatile materials include elements like hydrogen, carbon, and nitrogen, as well as compounds such as water and various gases.

Studying these volatile components has contributed to our understanding of the moon's volatile history, including the potential for water ice in certain regions.

Overall, the Apollo program's collection and analysis of lunar samples have played a vital role in expanding our knowledge of the moon's composition, formation, and geological processes. The ongoing study of these lunar samples continues to provide valuable insights and discoveries.

The Apollo program remains a significant milestone in human exploration and scientific research. Beyond the lunar samples, the Apollo missions yielded valuable information about lunar geology, the moon's magnetic field, its gravitational characteristics, and more.

The data and findings from the Apollo missions continue to be analyzed and utilized by scientists around the world to deepen our understanding of the moon and its relationship to Earth. They also provide crucial groundwork for future lunar missions and the broader field of planetary science.

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Power is defined as the rate of change of work done.

The quantity of energy transferred or transformed per unit of time is known as power.

The equations for calculating the power of an object are,

Power,

P = W/t                where W is the work done and t is the time.

P = F(d/t)             where F is the force, d is the distance.

P = ΔE/t               where ΔE is the change in energy.

P = Fv                  where v is the velocity.

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The letter "D" indicates the label for the row.Here is the labeled cell with the given numbers and corresponding colors:

1  2  3  4  5   6   7   8   9  10  11  12  13  14  15  16  17  18

D  B  Y      O       O   O   O   B         B         Y       Y

In the above cell, the numbers 1 and 14 are labeled with the color blue, the numbers -2 and -2 are labeled with the color yellow, and the numbers 10 and 11 are labeled with the color orange. The rest of the numbers are not assigned any specific color. The letter "D" indicates the label for the row.

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Answer:

6.0 m/s vertical and 9.0 m/s horizontal

Explanation:

For the vertical component, we use the formula:

Then we solve for y:

And for the horizontal component, we use the formula:

Then we solve for x:

So the answer is " 6.0 m/s vertical and 9.0 m/s horizontal".

The magnitude of the force on an electron placed at a point can be calculated using Coulomb's law equation, taking into account the distance and the charge of both particles involved.

To find the magnitude of the force on an electron placed at a point, we need to consider Coulomb's law equation. This law states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the equation can be written as F = kq1q2/d², where F is the force, k is Coulomb's constant, q1 and q2 are the charges of the two particles, and d is the distance between them.

In this case, we know that the charge on an electron has a magnitude of e, which is approximately 1.6 x 10^-19 Coulombs. We also know the distance between the electron and the point where we want to calculate the force. Using the Coulomb's law equation, we can calculate the magnitude of the force on the electron.

For example, if the distance between the electron and the point is 1 meter, and the point has a charge of 2 Coulombs, the magnitude of the force on the electron would be F = k(e)(2)/1² = (9 x 10⁹ Nm²/C²)(1.6 x 10⁻¹⁹ C)(2)/1² = 2.88 x 10⁻⁸ N.

Therefore, the magnitude of the force on an electron placed at a point can be calculated using Coulomb's law equation, taking into account the distance and the charge of both particles involved.

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The average speed of the car is 35.6m/s

The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity. It is represented by the magnitude and does not have direction. It is measured in meter per second

Therefore average speed = total distance / total time taken

The total distance here is 500+ 500= 1000km = 1×10⁶m

the time taken for the first journey = 500×1000/35= 14285.71 seconds

the time taken for traveling back = 500000/43= 11627.91 seconds

total time taken = 14285.71 + 11627.91 = 25913.62seconds

therefore average speed = 1000000/25913.62

= 35.6m/s

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