Can somebody mee plzzz?

Can Somebody Mee Plzzz?

Answers

Answer 1

Answer: I think the answer is d

Explanation:

Light is refracted as it crosses the air-water.

Hope it helps :)


Related Questions

Maria is trying to meet her friends at the pool but construction is blocking her path from the parking lot directly to the pool. Because of this, she has to walk 20 ft. north, 35 ft. east, and then 20 ft. south to get to the pool. Find her distance and displacement.

Answers

Answer:75 ft east

Explanation:

Which object has more momentum?

1. Caterpillar resting on a leaf?
2. Sleeping bear?
3. Llarge butterfly in flight, flying through the air?
4. Ant walking in line?

Answers

Answer:

3. Large butterfly in flight, flying through the air?

Explanation:

Momentum is simply defined as the quantity of motion a body possess. It is mathematically given as;

 Momentum  = mass x velocity

The larger the mass, the larger the momentum and also the velocity

Since the large butterfly is in flight, it has the largest velocity.

A sleeping bear and resting caterpillar have no momentum because their velocity is 0

If a person is walking along at 1.4m/s. How long will it take that person to walk one time around a high school track?​

Answers

Answer:

285.7s

Explanation:

Given parameters:

Speed of the person  = 1.4m/s

Unknown:

Time it takes to walk one time round the track = ?

Solution:

The circumference of the track is 400m for a standard pitch.

Now;

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

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

 Now insert the parameters;

Time  = [tex]\frac{400}{1.4}[/tex]  = 285.7s

At time=0s, the object is at the 21.0-meter position along the roadway. Where is the object at time = 10 s?

A) 91 m
B) 70 m
C) 140 m
D) 96 m

Answers

B.) 70m is your answer!

A resting state through the winter.
Adaptation: Bear sleeping in a cave during the winter months
0 A. Locomotion
B. Hibernation
C. Migration
D. Defense

Answers

Answer:

b

Explanation:

Bears hibernate in the winter

The answer is B (hope this helps!)

what planet are people working on so they can move there

Answers

Answer:

mars

Explanation:

just search it up

Answer:

Mars I belive

Explanation:

. If an object travels at a constant velocity, how does its average velocity compare to its
instantaneous
velocity throughout the trip?

Answers

Answer:

The average velocity is equal to the instantaneous velocity

Explanation:

The average velocity, [tex]\overline v[/tex], is given as follows;

[tex]\overline v = \dfrac{\Delta y}{\Delta t}[/tex]

Where;

Δy = The change in displacement

Δt = The change in time

The instantaneous velocity is the derivative found of the position of the object's displacement with respect to time

Therefore, the instantaneous velocity, [tex]v_{inst}[/tex] = The limit of the average velocity as the change in time becomes closer to zero

[tex]v_{inst} = \lim_{t \to 0} \left (\dfrac{\Delta y}{\Delta t} \right ) = \dfrac{dy}{dx}[/tex]

When the velocity is constant, the displacement time graph is a straight line graph, and the slope of the displacement-time graph which is the same as the velocity is constant  and therefore, we have;

[tex]Slope \ of \ straight \ line \ graph = \dfrac{y_2 - y_1}{t_2 - t_1} = \dfrac{\Delta y}{\Delta t}= \dfrac{dy}{dx}[/tex]

Therefore, for constant velocity, we have, [tex]\overline v[/tex] = [tex]v_{inst}[/tex] the average velocity is equal to the instantaneous velocity.

You are freezing juice to make your own popsicles. Describe what happens on a molecular level as the juice freezes. Be sure to us e appropriate science vocabulary in your response.

Answers

Answer:

When water freezes to form ice, the molecules would be vibrating in place rather than moving round. It is a result of a decrease in the kinetic energy of the molecules of water. It is said that the temperature and the kinetic energy of the molecules is directly proportional which means that when temperature is increased, the kinetic energy of the molecules would increase as well making the molecules move around. However for this case, when we day the system is cooled then it means the temperature is decreased which would result to the decrease of the kinetic energy of the molecules.

what types of forces can move an object?

Answers

One of them is Gravity

A car driving at 20 m/s accelerates continuously 2m/s2​ ​ for 3 seconds. What is its final velocity

Answers

Answer: V= u+ at

V= final velocity

u=initial velocity

a=acceleration

t=time taken

V= 20 + 2*3

V= 26m/s

Explanation:

Getting and using energy, reproducing, and maintaining structure are _______ of life.

Answers

The answer for getting and using every,reproducing and maintaining structure are out of life

pls guys what is the law of electrostatic​

Answers

Laws of Electrostatics

First law: Like charges of electricity repel each other, whereas unlike charges attract each other.
Second law:According to this law, the force exerted between two point charges
i) is directly proportional to the product of their strengths.
ii) is inversely proportional to the square of the distance between them. and
iii) is inversely proportional to the absolute permittivity of the surrounding medium.
This is known as Coulomb's Law

Answer:

hello

Explanation:

The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them

a ball rolls from x 10m to x -25m in 2.5 seconds. What was its average velocity?

Answers

Answer:

2.5=10xm is the correct one

Explanation:

Answer:

-14

Explanation:

how much time will it take for a bug to travel 55 M across the floor if it's traveling by 1.1 m / s​

Answers

Answer:

The bug will take 50 seconds to travel 55 m across the floor if it's traveling by 1.1 m / s​.

Explanation:

Given

Distance covered by bug = d = 55 m

The speed = s = 1.1 m/s

To determine

Time the bug will take to cover the distance = t = ?

Using the formula to determine the time the bug will take to travel 55 m across the floor if it's traveling by 1.1 m/s​.

Distance = Speed x Time

d = s x t

t = d/s

t = 55/1.1

t = 50 s

Therefore, the bug will take 50 seconds to travel 55 m across the floor if it's traveling by 1.1 m / s​.

Which property of a substance indicates wheaten the substance is a liquid or a solid at room temperature

Answers

Answer:

physical property

Explanation: Some substances exist as gases at room temperature (oxygen and carbon dioxide), while others, like water and mercury metal, exist as liquids.

Hi I need help with this question (see image ). ​

Answers

Explanation:

a) Fixed points are the temperatures at which a thermometer is calibrated. They can refer either to the actual temperatures used for calibration, or the thermometer readings at those temperatures.

__

b) Fundamental interval is the difference between the fixed points. As with fixed points, it can refer either to the difference in actual temperature, or the difference in the corresponding thermometer readings.

HELP!! I’m DESPERATE!! 19 POINTS!!!


Which action might lead scientists to develop new explanations about the
universe?

A. Becoming familiar with the history of space exploration

O B. Speculating on whether conditions on other planets might support
life

O C. Developing new technologies designed to see farther into space
than before

D. Wondering about the present size and shape of the universe and
how it formed

Answers

c. Developing new technologies designed to see farther into space

than before

What is universe?

The universe is everything including all of space, and all the matter and energy that space contains. Also it includes time itself and, of course, it includes us.

What began as a sequence one-upmanship in space-related technological advancements between the U.S. and the Soviet Union would spawn incredible progress observed in innovation to this day. The battle for dominance not only as a global superpower, but a space power, led the United States and the Soviet Union to race to put men in space and eventually on the moon.

The launch of the Soviet satellite Sputnik on Oct. 4, 1957, would place pressure on the U.S. to design technologies crafted for space exploration. This, in turn, spurred a series of innovations in technology that would have far reaching impacts beyond space.

These technologies can be seen as developments in modern healthcare, construction, and transportation. Relevant examples include medical imaging techniques,  artificial limbs, water filtration systems, solar panels, firefighting equipment, shock absorbers, air purifiers, home insulation, weather resistant airplanes, infrared thermometers, and countless other vital inventions.

While all these creations help sustain essential aspects of modern life, we carry one of the largest technological advancements from the space race in our pockets today.

Therefore, Developing new technologies designed to see farther into space than before lead scientists to develop new explanations about the universe.

Learn more about universe here:https://brainly.com/question/15844073

#SPJ1

If mass and velocity are unknown when using de Broglie's wavelength formula, what alternative value must we have to successfully determine the wavelength

Answers

Answer:

The particle momentum, p

Explanation:

A particle's de Broglie's wavelength is an indication of the scale in length where the particle's wave-like properties are important. The symbol of de Broglie wavelength is λ or [tex]\lambda _{dB}[/tex] given as follows;

The de Broglie's wavelength formula is given as follows;

[tex]\lambda = \dfrac{h}{m \cdot v} = \dfrac{h}{p}[/tex]

Where;

λ = The wavelength of the particle in meters

v = The velocity of the particle in meters/seconds

m = The mass of the particle in kilograms

p = The momentum of the particle

h = Planck's constant = 6.626 × 10⁻³⁴ J/Hz

Therefore, the alternative value that we must have to successfully determine the wavelength if the mass and velocity are unknown, is the momentum, p of the particle.

What occurs when air moves from an area of high pressure to an area of lower pressure

Answers

Air flowing from areas of high pressure to low pressure creates wind.

***URGENT****calculate the work done by a crane lifting a 3.8mg ( megagrams or tonnes) load to a height of 23m. ( g= 10 m/s squared)


Thank you, :))

Answers

Answer:

874000J

Explanation:

Given parameters:

Mass  = 3.8Mg  = 3.8 x 10⁶g

  To kilograms;

          1000g  = 1kg

        3.8 x 10⁶g will be 3.8 x 10³kg

height  = 23m

Unknown :

Work done  = ?

Solution:

The work done by a body is give as;

    Work done  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

 Now insert the parameters and solve;

             Work done  = 3.8 x 10³ x 10 x 23  = 874000J

What is the difference between catastrophism and uniformitarianism

Answers

Explanation:

Catastrophism is a geological concept or ideology that was formerly in place. It suggests that the earth crust has evolved through only drastic and violent geological events.

Uniformitarianism suggests that the earth carefully evolved over a period of time and that the processes that are occurring today have occurred in times past.

Catastrophism presents a drastic and rapid evolution of the crust. Uniformitarianism takes a gradual approach to events and suggests that we can use the present to unravel the past.

Select the correct answer.
Five locations are marked on the world map. Which location is most prone to hurricanes?

Answers

Answer: A

Explanation:

Location A represents the Caribbean region which is known for tourist attractions such as nice beaches. It is also known however, for devastating hurricanes.

Apart from mostly being islands, which puts them at risk of being in Hurricane paths, the Caribbean is warm and the air is moist. Hurricanes derive energy from these two things which is why Hurricanes attack the Caribbean rather frequently.

Answer:

Based off the picture the guy above showed me, the correct answer would be A

However, if you have a different map, choose the choice nearest to a body of water.

What are combined vectors that go in one direction?
A. equal in magnitude
B. one-dimensional
C. two-dimensional
D. displacements

Answers

Answer:

One-dimensional

Explanation:

Why do water molecules tend to stay together and hold their shape? Name and explain the phenomenon by which this happens

Answers

Answer:

because liquid and solid states of water possesses intermolecular force of attraction which held the molecules of water in fixed

Astrology is considered a science because it is grounded in scientific research. Please select the best answer from the choices provided T

Answers

Answer:

False. Astrology is not a science.

Explanation:

Astrology is a collective term for ideas about the supposed connection between the fate of people and events on Earth and the position of the celestial bodies. It mainly concerns the places in the sky of the sun, moon and planets, which were referred to as stars in ancient times, usually against the background of the fixed stars in the Zodiac. Although astrology cannot be confirmed despite research, and scientists have long rejected the principles of astrology as pseudoscience, many people continue to practice and / or believe in it.

Answer:

False

Explanation: i got it right in edge

Rose got out of bed and walked from her room to the bathroom 10 m/s in 2s. She was traveling southeast. What was her acceleration?

Answers

Answer:

Acceleration = 5m/s² Southeast

Explanation:

Given the following data;

Final velocity = 10 m/s

Time = 2secs

To find acceleration;

In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.

Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.

Mathematically, acceleration is given by the equation;

[tex]Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}[/tex]

[tex]a = \frac{v - u}{t}[/tex]

Where,

a is acceleration measured in [tex]ms^{-2}[/tex]

v and u is final and initial velocity respectively, measured in [tex]ms^{-1}[/tex]

t is time measured in seconds.

We know that Initial velocity = 0m/s

Substituting into the equation, we have;

[tex]a = \frac{10 - 0}{2}[/tex]

[tex]a = \frac{10}{2}[/tex]

Acceleration = 5m/s² Southeast.

Please please help me. I will mark you as brainliest if you’re right !

1. What happens to the period of a pendulum and the period of a spring as the
amplitude of the oscillation increases? Briefly give an explanation for this
relationship. (5 points)

Answers

Answer:

The Pendulum falls but the longer the period or the back and forth swing the greater amplitude the oscillation depends on the amplitude

Explanation:

Regardless of the method used to develop a scientific explanation, what does a scientist always look for?
1Trends or patterns
2proof of hypothesis
3a mathematical equation
4something never seen before

Answers

Answer:

2proof of hypothesis

Explanation:

A scientist is always on the look out for the proof of a hypothesis so as to validate their claim.

A hypothesis presented by a scientist is a testable idea. When the hypothesis is subject to a test, results are produced in form of data. The data is then analyzed to give the meaning which is the conclusion drawn So, the goal of a scientist is to find proof of their claim. The proof can come in many different forms or formats

A 240 kg crate full of bricks is pushed across a surface with an acceleration of 1.3
m/s2. If the crate travels a distance of 4.6 m, How much work is being done?

Answers

Answer:

Workdone = 1435.2N/m

Explanation:

Given the following data;

Mass = 240kg

Acceleration = 1.3m/s²

Distance = 4.6m

To find the force;

Force = mass* acceleration

Substituting into the equation, we have;

Force = 240 * 1.3

Force = 312N

Now, to find the workdone;

Workdone = force * distance

Workdone = 312 * 4.6

Workdone = 1435.2N/m

A 225kg race horse runs around the track with an acceleration or 13m/s2. What is the force needed by the horse?

Answers

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 we have

force = 225 × 13

We have the final answer as

2925 N

Hope this helps you

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