Distance = 50m
Displacement = 50m to the right
Explanation:Distance is the total length of a given path. It is a scalar quantity and thus takes no consideration on the direction of the path.
Displacement on the other hand is the change in position of an object. It is a vector quantity and takes consideration on the direction of the object.
From the question:
The swimmer swims half lap by moving from the left end to the right end of a pool that is 50m long.
Distance = total length of the given path = 50m
Displacement = change in position of the swimmer from the left end (0m) to the right end (50m) = 50 - 0 = 50m
Since direction is important in displacement, the complete details of the displacement should be 50m to the right
Answer:
The distance is 50m and the displacement is also 50 m
Explanation:
the swimmer traveled 50m =distance
the swimmer was now 50m away from the start=displacement
3. A person of mass 100 kg stands on a scale in an elevator. The elevator moves downward at a steady speed. Is the scale reading greater than, less than, or equal to 1000 N? Justify your answer.
Answer:
less than
Explanation:
Given;
mass of the person, m = 100 kg
acceleration due to gravity, g = 9.8 m/s²
The reading on the scale is determined by applying Newton's second law of motion;
R = mg - ma
R = m(g-a)
at constant velocity, the acceleration is zero
a = 0
R = m(g-0)
R = mg
R = 100 x 9.8
R = 980 N
Thus, the scale reading is equal to the weight of the person but less than 1000 N
A cruise took 6 hours to fulfill its trip. It travelled at an average
speed of 160 km/h for the first 2 h 15 min. For the remaining
journey, it travelled at an average speed of 180 km/h. What was
the total distance of the journey?
Answer: 1035
Explanation:
Two teams are playing tug of war. Team A pulls to the right with a force of 450 N. Team B pulls to the left with a force of 415 N.
Answer:
Two teams are playing tug of war. Team A pulls to the right with a force of 450 N. Team B pulls to the left with a force of 415 N
Answer:
A. 35 N to the right.
EXPLANATION: 450 is going to the right so you subtract what is going against it. Which gives you 35. And because 450 is bigger than 415, it'll be going to the right.
help pls!!
acceleration:
a) the rate of change of position
b) acceleration caused by the force of gravitation
c) the rate of change in velocity; speeding up, slowing down, or changing direction
d) for every action force, there is an equal and opposite reaction force
Answer:C.
Explanation:
The rate of change in velocity; speeding up, slowing down, or changing direction
a cross country runner runs 10 km in 40 minutes. what is his average speed
◈ Average speed is measured as the ratio of total distance travelled to the total time taken.
Given : d = 10km and t = 40min
To Find : Vav
_________________________________
፨ Conversion :-
60 min = 1 h
40 min = 40/60 = 2/3 h
[tex]:\implies\sf\:V_{av}=\dfrac{d}{t}[/tex]
[tex]:\implies\sf\:V_{av}=\dfrac{10\times 3}{2}[/tex]
[tex]:\implies\sf\:V_{av}=\dfrac{30}{2}[/tex]
[tex]:\implies\:\boxed{\bf{\orange{V_{av}\:15\:kmph}}}[/tex]
Find the average velocity (in m/s) of a bicycler that starts 200 meters north of Norwalk and is 2,000 meters north after 45 minutes.
Answer:
The answer is 10
Explanation:20 x 10 = 200
The United States spends over $20 billion a year on space exploration through NASA. Do you think that this has been worth the cost? In three to five sentences, provide two specific examples of things we have learned from space exploration, and explain how these examples influence your opinion.(4 points)
Sunday, July 20, marked 45 years since the United States put the first two astronauts safely on the moon. The cost for the Mercury, Gemini and Apollo programs was more than $25 billion at the time more like $110 billion in today’s world. The ensuing U.S. space efforts have cost an additional $196 billion for the shuttle and $50 billion for the space station. NASA’s total inflation-adjusted costs have been more than $900 billion since its creation in 1958 through 2014 (more than $16 billion per year). Looking back, have we gotten our money’s worth from the investment?
IamSugarBee
If you have 2 flowers, but then your friend gives you one, how many do you have?
Answer:
3
Explanation:
Answer:
2+1=3
Explanation:
cause why not
Which of the following options correctly describe electromagnetic radiation? Select all that apply. Particles of electromagnetic radiation exhibit wave behavior. A particle of electromagnetic radiation is called a quantum. All electromagnetic radiation has the same frequency. Electromagnetic radiation includes visible light. The specific amount of energy a particular photon possesses is called a quantum.
Answer:
Particles of electromagnetic radiation exhibit wave behavior
Electromagnetic radiation includes visible light
The specific amount of energy a particular photon possesses is called a quantum
Explanation:
Electromagnetic waves propagate through space perpendicularly to a oscillating magnetic and electric field producing it. Both of these fields oscillates perpendicular to one another, and to the direction of propagation of the wave.
Electromagnetic waves exhibit both wave and particle light behaviors, this phenomenon is known as the wave-particle duality.
Visible light is part of the broad spectrum of waves in the electromagnetic wave spectrum. And each particle of an electromagnetic wave is known as a photon, and they carry energy in discrete amounts called quantum.
Electromagnetic radiation occurs when electric and magnetic fields emit radiations that travel in waves. Given this explanation, the options that correctly describe electronic radiation are;
Particles of electromagnetic radiation exhibit wave behavior.The specific amount of energy a particular photon possesses is called a quantum. Electromagnetic radiation includes visible light.Electromagnetic radiation is used to explain the disturbance that occurs when the electric and magnetic fields travel at the speed of light.
There are different frequencies of radiation that are emitted in the process. Some have high and low energies.
The radio waves, ultraviolet rays, and visible light are all examples of electromagnetic radiation
Learn more here:
https://brainly.com/question/1408043
What is the power of 10 when 0.00503 is written in scientific notation
what are the three parts to tell the cell theory
Answer: 1. Organisms are made of cells
2. Cells are the most fundamental unit of life
3. Cells come from other cells
Explanation:
Hope this helps!!
a mineral has a mas of 53grams. Its volume is 12millileters. What is the
density?
Answer:
636
Explanation:
Answer:
4.45 g/mL
Explanation:
to get density, you simply divide the volume by the mass, so your equation would look like p= 53/12
P being density, which is what you are solving for! Hope this helps!!
Read the excerpt from "Introduction to Poetry" by Billy Collins. or walk inside the poem's room and feel the walls for a light switch. How does this metaphor reveal Collins’s message? The metaphor suggests that poetic themes are serious and dark. The metaphor suggests that readers should explore poems in depth. The metaphor insists that readers should move about while reading. The metaphor insists that one must know the poet to understand the poem.
Answer:
d
Explanation:
hi
Answer:
the answer is b The metaphor suggests that readers should explore poems in depth.
Explanation:
I got it right
It's important to match your exercise shoes with the type of exercise in which you will be participating.
Answer:
True
Explanation:
Answer:
True is the correct answer
Explanation:
i took the test
Sea and land breezes over a large region that change direction with the seasons are called_____________.
A sled is at rest at the top of a slope 2 m high. The sled has a mass of 45 kg. What is the sled’s potential energy?
Answer:
its 882 J
Explanation:
the answer is D for edge
which type of mixture is air explain
Answer:Three elements make up over 99.9 percent of the composition of dry air: these are nitrogen, oxygen, and argon.
Explanation:
Answer: Air is an gaseous substance
Explanation:
Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. Salt, sugar, and many other substances dissolve in water to form homogeneous mixtures.
A person driving a car suddenly applies the brakes. The car takes 7.0 s to come to rest while traveling 26 m at constant acceleration. What was the initial speed of the car (in m/s)?
Answer:
7.43 m/s
Explanation:
Time taken for car to stop = 7.0 s
distance traveled before coming to rest = 26 m
Final speed of the car = 0 m/s (since it stops)
initial speed of the car = ?
To get the final speed, we use the equation
s = [tex]\frac{1}{2}t(u + v)[/tex]
where
s is the distance traveled before stopping
u is the initial speed = ?
v is the final speed = 0 m/s
t is the time = 7 s
substituting values, we have
26 = [tex]\frac{1}{2}*7*(u + 0)[/tex]
26 = 3.5u
u = 26/3.5 = 7.43 m/s
Place thermometers near the edge of the table for easy retrieval.
True
True
False
A student leaves his house and walks 4 m east to friend's house, and then turns and walks 7 m west to the library in 120 seconds. Determine the student's average velocity for his entire walk.
Answer:
v_average = -0.025 m / s
the minus indicates that the velocity is to the west.
Explanation:
For this exercise we use the definition of average velocity
v_average = (x₂-x₁) / Δt
Let's keep in mind that the velocity is a vector, so the displacement is
x₂ - x₁ = 4 - 7 = -3
the minus indicates that the shift is to the west.
Let's calculate
v_average = -3 / 120
v_average = -0.025 m / s
the minus indicates that the velocity is to the west.
what are fossil fuels?
Answer:
Fossil Fuels are natural fuels like coal or gas that were formed millions of years ago and take millions of years to form. They are formed from the remains of past living organisms.
Explanation:
Well you do no really need an explanation for this one...
What teaching methods help you the most (direct instruction, watching videos, teaching others) and why?
Explanation:
for me its teaching others. I find it really helpful to go over something then recite all the info to my mum or sister after without looking at notes to see how much I could remember
X-rays are used to take pictures of your bones. UV rays just burn your skin. Why do you think x-rays can go through skin and UV rays cannot?
(Please help, And try to be as detailed as possible.)
Answer:
yes x rays are like light rays the difference is that they v
can oass through stuffs
skin and fats doesn't block more of the x rays
Explanation:
why uv cannot go through it us dangerous causing skin disease and cancer,skin itchness and redness and ut is cumulative
What do you like about science?
Answer:
nngh have
bjruh hjrhhj be rnrnnrnrnnnrnjrjnnnnnnnnrnrn n n and I was nrn
Explanation:
jbbbbbhhhjjnnnnnnnnnnjhvcc
Explanation:
List two examples of the following states of matter: solids, liquids, and gases. Please answer in NO LESS THAN 3 complete sentences.
Answer:
Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.
Key Takeaways: Examples of Solids, Liquids, and Gases
A solid has a defined shape and volume. A common example is ice. A liquid has a defined volume, but can change state. An example is liquid water.There are four natural states of matter: Solids, liquids, gases and plasma. The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together so they don't move much.
Explanation:
Jim rode at an average speed of 12mph in 2 hours the he walked at an average of speed of 3 mph 0.5 hours what was the total distance covered by Jim
Answer:
12mph in 2hrs and 3mph in 0.5hrs the total distance would be 12*2 and 3*0.5 which would be 24 and 1.5 so we add those 24+1.5= 25.5. The answer would be 25.5
Why ultrasound is useful in medical field???
Answer:
It allows you to see fetuses before they are born.
Explanation:
because it has many helpful measures....
it helps in breaking and crushing the kidney stones...due to its high frequency....
What is energy????????
Answer:
Energy is the ability to do work.
Explanation: Work is just the act of displaying something by applying force.
A race car starts from rest and speeds up uniformly to the right until it reaches a maximum velocity of 60m/s^2
What is the acceleration of the race car?
Question:
A race car starts from rest and speed up uniformly to the right until it reaches a maximum velocity of 60m/s in 15 secs
Answer:
4m/s²
Explanation:
The acceleration of a body in uniform motion can be found by using one of the equations of motion as follows;
v = u + at ------------------(i)
Where;
v = final velocity of the body
u = initial velocity of the body
a = acceleration of the body
t = time taken for the motion
From the question, the body is the race car and has the following:
v = 60m/s²
u = 0 [since the car starts from rest]
t = 15 secs.
Now, substitute these values into equation(i) as follows;
60 = 0 + a(15)
60 = 15a [Divide through by 15]
[tex]\frac{60}{15}[/tex] = [tex]\frac{15a}{15}[/tex]
a = 4
Therefore, the acceleration of the race car is 4m/s²
What is the displacement of the elevator between 8 s and 24 s?
Answer:
The displacement of the elevator between 8 s and 24 s is 6 m.
Explanation:
Given that,
Initial time = 8 s
Final time = 24 s
We know that,
Displacement :
Displacement is the difference between initial position and final position.
In mathematically,
[tex]D=x_{f}-x_{i}[/tex]
We need to calculate the displacement
Using formula of displacement
[tex]D=x_{f}-x_{i}[/tex]
Put the value from graph
[tex]D=15-9[/tex]
[tex]D=6\ m[/tex]
Hence, The displacement of the elevator between 8 s and 24 s is 6 m.
Answer:
See attached.
Explanation:
See attached.