distance- 14 meters
displacement- 125 kilometers South
speed- 45 mph
velocity- 75 m/s upwards
acceleration due to gravity on the earth- 9.8 m/s^2
net force- 22 Newtons to the left
weight- 14 Newtons down
acceleration- 128 m/s^2 West
Velocity is the directional speed of a moving object as an indicator of its rate of change in location as perceived from a certain frame of reference and measured by a specific time standard.
What is Velocity?Velocity is the directional speed of a moving object as an indicator of its rate of change in location as perceived from a certain frame of reference and measured by a specific time standard.
Velocity → 75 m/s upwards
Velocity is the ratio of displacement and time, therefore, it has magnitude as well as direction.
Net force → 22 Newtons to the left
Force is measured in Newton and can be in any direction
Acceleration due to gravity on Earth → 9.8 m/s^2 or 9.81 m/s^2
It is the general value of Acceleration due to gravity on Earth.
Acceleration → 128 m/s^2 West
Acceleration is measured in meters per second square.
Distance → 14 meters
Distance is measured in meters, feet, cm, km, etc.
Speed → 45 mph
Speed is the ratio of distance and time.
Displacement → 125 kilometers South
Displacement has magnitude and direction both.
Weight → 14 newtons down
Weight is also a force but it is in the downward direction.
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Is a fine for speeding based of the average speed or the instantaneous speed? Explain
Answer: Therefore, the instantaneous speed is only the answer, because, the detector can only detect the instantaneous speed but not the average speed.
Explanation:
why is there more potential for wind energy in the upper himalayan in nepal?
Answer:
The potential area of wind power in the country is about 6074 sq. km with wind power density greater than 300 watt/m2. More than 3,000 MW of electricity could be generated at 5 MW per sq km. The commercially viable wind potential of the country is estimated to be only about 448 MW.
3. Define One meter length
Answer:
100cm or 1.09361yards or 1000mm
Explanation:
The meter, symbol m, is the SI unit of length. It is defined by taking the fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed in the unit m s-1, where the second is defined in terms of ΔνCs.
5. Which statement about the movement of an object with zero acceleration is true?
Answer:
when the car is moving in a straight line with constant velocity
what are the three equation of motion
Explanation:
Three equations of motion are as follows:-
v=u+ats=ut+(1/2)at²v²=u²+2as7. A car travels a certain distance with a speed of
50 km/h and returns with a speed of 40 km/h.
Calculate the average speed
Plz help
A man is inside an airplane and walking toward the back of the plane at 7 m/s. The plane is flying West at 245 m/s. What is the speed and direction of the plane relative to the man?
7 m/s East
238 m/s, East
252 m/s West
238 m/s, West
Answer:
7 m/s East
Explanation:
The speed of the man relative to the plane is given as 7 m/s. Given that he's walking in the corridor of the plane, this is his speed relative to the plane. Since he's moving to the back of the plane, and the aircraft is headed to west, the man's direction relative to the plane is East.
what is the relationship between the variables on this graph? The temperature does not have an effect on flow time. As the temperature increases, the flow time increases. As the temperature increases, the flow time decreases.
Answer: As the temperature increases, the flow time increases.
Explanation: i took the test
The relationship between the variables on this graph is that As the temperature increases, the flow time increases, therefore the correct answer is option B.
What is the kelvin scale of temperature?It is a scale of temperature used to measure the temperature, the kelvin scale of temperature is also known as the absolute scale of temperature.
The Standard International unit of thermodynamic temperature is the kelvin, often known less frequently as the degree Kelvin. The formal definition of one kelvin is 1/273.16 of the thermodynamic temperature of pure water's triple point.
As shown in the graph as the temperature increase across the X axis the flow time is increasing as well, these two variables are directly proportional to each other.
Thus, The graph shows a link between the variables, showing that when the temperature rises, flow time also rises, hence option B is the proper response.
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1:
a change in velocity?
Section 4.4
7. What is the acceleration of a car moving
along a straight-line path that increases its
speed from zero to 100 km/h in 10 s?
S
1
2
[tex]\\ \tt\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]
[tex]\\ \tt\longmapsto Acceleration=\dfrac{2.7-0}{2}[/tex]
[tex]\\ \tt\longmapsto Acceleration=\dfrac{2.7}{10}[/tex]
[tex]\\ \tt\longmapsto Acceleration=27m/s^2[/tex]
Answer:
Initial velocity=u=0m/sFinal velocity=100km/h=v=100×5/18=500/18=2.7m/sTime=t=10s⟼Acceleration=tv−u
⟼Acceleration=22.7−0
⟼Acceleration=102.7
⟼Acceleration=27m/s2
Plssss help!!! look at the photo :)
how do you measure the volume of irregular object? explain with diagram
Answer:
by using graphical meythod
.A path for electricity is
a circuit
a light bulb
an ampere
a current
Answer:
A path for electricity is current
Don't let yesterday take up too much of today.
Explanation:
A path for electricity is a circuit.hope it helps.stay safe healthy and happy.What do kinematic equations do?
Answer:
The kinematics equations describe the motion of an object undergoing constant acceleration
Explanation:
The kinematics equations describe the motion of an object undergoing constant acceleration. These equations relate the variables of time, position, velocity and acceleration of a moving object, allowing any of these variables to be solved for if the others are known
Solve using correct significant figures and indicating maximum absolute uncertainty.
(0.0336 ± 0.0002 mol - 0.010 ± 0.001 mol)(255.4 ± 0.4 g/mol)=
The criterion of significant figures can to find the result with reliable figures
X = 9.2 10⁻⁵
now with the propagation of errors we obtain the result with its uncertainty
X ± ΔX = (9.2 ± 0.5) 10⁻⁵
given Parameter
* expression values with their absolute errors
to find
* the result with the correct significant figures
* the absolute error of the expression
Significant figures are defined with the number of decimals that give information, the number of figures in a quantity gives information about the uncertainty of this quantity.
There are two criteria for applying significant figures:
* Add and subtract the result of going with the number of decimal places of the figure that has the least
* Product and division as a result of going with the least number of significant figures than the value that has the least.
Remember that the zero to the left do not form a pair of the significant figures
Let's apply this belief to the case presented, let's write the precaution
[tex]x = \frac{a-b}{c}[/tex]
where in this case they are worth
a = 0.0336 ± 0.0002
b = 0.010 ± 0.001
c = 255.4 ± 0.4
We see that the significant figures of each parameterize (a, b, c) and their absolute errors are correct.
Let's apply the criteria to the operation
a-b = 0.0336 - 0.010
a- b = 0.0236
we apply the criterion of significant figures for the subtraction, the result must be with 3 decimal places
a - b = 0.024
let's do the other operation
X = [tex]\frac{a-b}{c}[/tex]
X = 0.024 / 255.4
X = 9.24 10⁻⁵
We apply the criterion of significant figures for the division, in this case the result is left with two significant figures
X = 9.2 10⁻⁵
The uncertainty or error of the measurements is of most importance as it determines how many significative figures are reliable at a given magnitude.
If the magnitudes are measured with some type of instrument, the absolute error is given by the appreciation of the instrument, if the magnitude is calculated using some equation, the errors must be propagated using the variations of each parameter in the worst case.
the uncertainty of the calculated quantity (X) is
[tex]\Delta X = | \frac{dX}{da}| \Delta a + | \frac{dX}{db} | \Delta b + | \frac{dX}{dc}| \Delta c[/tex]
let's perform the derivatives
[tex]\frac{dX}{da} = \frac{1}{c}[/tex]
[tex]\frac{dX}{db} = - \frac{1}{c}[/tex]
[tex]\frac{dX}{dc} = - \frac{a-b}{c^2}[/tex]
we substitute
remember that the bulk value guarantees that we tune the worst case. So all the mistakes add up
ΔX = [tex]\frac{1}{c}[/tex] Δa +
ΔX = (Δa + Δb) + Δc
we substitute
ΔX = [tex]\frac{1}{255.4}[/tex] (0.0002 + 0.001) + [tex]\frac{0.0336-0.010}{255.4^2}[/tex] 0.4
ΔX = 4.698 10⁻⁶ + 1.45 10⁻⁷
ΔX = 4.8 10⁻⁶
Absolute errors must be given with a single significant figure
ΔX = 5 10⁻⁶
The result of the requested quantity using the criterion of significant figures and propagation of errors is
X ± ΔX = (9.2 ± 0.5) 10⁻⁵
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The temperature of the universe is gradually ____ (The answer is not a number)
Answer:
its decressing, or getting colder
Explanation:
hope this helps
branilest plzz
State four (4) Forms (abstracts) that the liberated prisoner confronts and the copy of each of those Forms (tangible, finite, concrete, identifiable by sensory perception).
The four abstract forms and their tangible copies that apply to the liberated prisoner in the myth of Plato's cave are:
1. Astonishment.
Copy: Elevation of the eyebrows and opening of the mouth.2. Anger.
Copy: Screaming.3. Happiness.
Copy: Laugh.4. Alienation:
Copy: Crying.The feelings of the liberated prisoner in the myth of Plato's cave.
Once the prisoner is released by figures that do not correspond to shadows but to tangible beings that can lift him or even pull or drag him, the first form he must experience is astonishment, identifiable by his copy, which would be the raising of the eyebrows and / or or the opening of its mouth reflecting that shape.
Next, the myth of the cave tells us that the man was forced to leave the cave, for which the experienced form must have been anger, reflected in his copy that would be possible shouts towards the people who take him out of the cave and they make you walk on rough terrain.
Later, once the liberated man accustoms his eyes and can see more defined forms such as trees, people or even the sun, his form is joy, whose copy is laughter, out of laughter if that is the case, being now aware of a whole new that I did not know.
Once the freed prisoner returns to the cave, having a different concept about the reflected shadows to which his companions are accustomed, the abstract form is alienation, followed by his copy that is crying, since he will surely be excluded by his acquaintances. , which I would be trying to help.
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Abigail Folgers’s dying words were ?
Answer:
"My God is an amazing God."
Two objects of masses 50 g and 100 g are moving along the same line and direction with velocities of 5 m/s and
10 m/s respectively. They collide and after collision, the second object moves at a velocity of 8 m/s. Determine
the velocity of the second object.
Answer:
M1 v1 + M2 v2 = M1 V1 + M2 V2
Assuming we are to fine V2 (the problem is not clear on this point)
50 * 5 + 100 * 10 = 50 * 8 + 100 V2 conservation of momentum
V2 = (250 + 1000 - 400) / 100 = 850 / 100 = 8.5 m/s
Please answer this. .
Answer:
a. Mucous membranes protect the inside parts of your body that are exposed to air, in a similar fashion to how your skin protects your external body. Mucous membranes are rich with mucous glands that secrete mucus to help keep the membranes moist.
b.Nose hairs act as a filter that prevents dust, pollen, and allergens from entering your lungs. When particles enter your nose, they get stuck on a thin layer of mucus that coats your hairs. Eventually, the particles either get sneezed out or swallowed. Your nose is also filled with microscopic hairs called cilia.
.
c.The epiglottis is a small, movable "lid" just above the larynx that prevents food and drink from entering your windpipe. But if the epiglottis becomes swollen — either from infection or from injury — the airway narrows and may become completely blocked.
d.Coughing can have causes that aren't due to underlying disease. Examples include normal clearing of airways, irritants such as smoke and gas, tobacco use or improperly swallowing food and liquids.
e.In humans there are about 15 – 20 incomplete C-shaped cartilaginous rings which reinforces the anterior and lateral sides of the trachea to protect and maintain the airway open. (The cartilaginous rings are incomplete because this allows the trachea to collapse slightly to allow food to pass down the esophagus.
f. .Pulmonary surfactant is a surface active material composed of lipids and proteins which is found in the fluid lining the alveoli.
g.The pleura includes two thin layers of tissue that protect and cushion the lungs. ... The very thin space between the layers is called the pleural cavity. A liquid, called pleural fluid, lubricates the pleural cavity so that the two layers of pleural tissue can slide against each other.
h.The ribs are the bony framework of the thoracic cavity. The ribs form the main structure of the thoracic cage protecting the thoracic organs, however their main function is to aid respiration. There are twelve pairs of ribs. Each rib articulates posteriorly with two thoracic vertebrae by the costovertebral joint.
a solid copper sphere will sink in water while a hollow copper sphere of the same mass may float.explain this observation
Answer:
According to archemdes principle ,if an object displace more water that its volume then it will sink in water
As The hollow sphere of same mass have high volume ,so it will float and solid copper with less volume will sink ....
Explanation:
Plz mark me as brainliest ,I badly need it
convert 300 k into Celsius scale
Answer:
Given, kelvin temperature = 300 K
C = K – 273.15
C = 300 – 273.15
C = 26.85
Therefore, 300 Kelvin is equal to a celsius temperature of 26.85 °C
Hope this helps u
A train on a straight track goes in the positive direction for 5.9 km, and then backs up for 3.8 km
Answer:
2.1km
Explanation:
Ill take it as u are talking about the displacement
Since displacement has negatives and positves
5.9 - 3.8 = 2.1km
flood and landslides occur more in rainy season, why
Explanation:
When the water level in Neapl's over 6,000 rivers and creeks, flowing north to South, swells up during the monsoon season, they wreak havoc in the downstream communities of the plains .
Which of the following is a vector quantity?
a. distance
b. time
c. speed
d. displacement
Answer:
d. displacement
Explanation:
Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
A student conducts an experiment to test how the temperature affects the amount of sugar that can dissolve in water. In the experiment, she uses 100 milliliters of water in each trial and stirs for five minutes each time.
What is the independent variable in this experiment?
A. the amount of water
B. the temperature of the water
C. the amount of sugar
Which property of a quarter is different on the International Space Station than it is on Earth?
Its mass
Its weight
Its volume
Its density
the _____ of an element tells you the amount of protons that the atom carries.
Answer:The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.
Explanation:
Benjamina started her walk from the front door of her ground-floor apartment. She walked 6 meters to the corner of the building and then turned the corner and walked 10 meters to her friend’s apartment. Identify the difference between the distance she walked and her displacement.
Answer:
The change in her position (from beginning to end), along with the direction, is considered her displacement.
Explanation:
Answer:
The change in her position ( from beginning to end), along with the direction, is considered her displacement. This value is a measurement and a direction. The total distance along the path from her starting point to her endpoint is considered her distance. This value is a measurement only.
why energy crisis may create big problem in the near future.
Answer:
Most energy crises have been caused by localized shortages, wars and market manipulation. Some have argued that government actions like tax hikes, nationalisation of energy companies, and regulation of the energy sector, shift supply and demand of energy away from its economic equilibrium.
derive the formula v= u+ at
please derive in detail
Lets do
We know
The rate of change of velocity is acceleration .
[tex]\\ \sf\longmapsto a=\dfrac{dv}{dt}[/tex]
[tex]\\ \sf\longmapsto dv=adt[/tex]
Integrate both sides
[tex]\\ \sf\longmapsto \int dv=a\int dt[/tex]
As acceleration is constant .Take it outside of integral .On velocity we can take limit u to v and time from 0 to t
[tex]\\ \sf\longmapsto {\displaystyle{\int}}^v_u dv=a{\displaystyle{\int}}^t_0 dt[/tex]
Hence
[tex]\\ \sf\longmapsto v{\huge{|}}^v_u=at[/tex]
[tex]\\ \sf\longmapsto v-u=at[/tex]
[tex]\\ \sf\longmapsto v=u+at[/tex]
