assuming this is a distance time graph( ignore the speed time title) assume metres on vertical scale. describe in as much detail the journey shown. include speeds, total distance, when stationary, and when the return journey started.
(dont comment if u dont know)
Answers
Answer:
The journey started from point A, with a speed of 1 m/s for 10 seconds after which the it became stationary at 10 meters from the start point, for 10 seconds. The journey continued at a higher speed of 2 m/s for 5 seconds and halted (became stationary) again at 20 meters which was the maximum distance reached from the start point
The return journey to the start point started at the 20 meter mark and lasted for 5 seconds, at a speed of 4 m/s
The total distance travelled during the journey from the start point A to the final point B is 40 m
Explanation:
From the start point A to point B, we have;
The speed from A to B = 10 m/(10 s) = 1 m/s
The distance traveled from A to B = 10 m
The time it takes to move from A to B = 10 seconds
From the point B to point C, we have;
The distance traveled from B to C = 0 m, (stationary)
The time it remains at point B distance from the start point = 10 seconds
The speed between point B to C = 0 m/(10 s) = 0 m/s
From the point C to point D, we have;
The distance traveled from C to D = 10 m
The time it takes to move from C to D = 5 seconds
The speed between point C and D = 10 m/(5 s) = 2 m/s
From the point D to point E, we have;
The distance traveled from D to E = 0 m, (stationary)
The time it remains at point D distance from the start point = 10 seconds
The speed between point D to E = 0 m/(10 s) = 0 m/s
From the point E to point F, we have;
The distance traveled from E to F = 20 m (return journey starts at point E)
The time it takes to move from E to F = 5 seconds
The speed between point E to F = 20 m/(5 s) = 4 m/s (Return journey)
Therefore, the journey started from point A, with a speed of 1 m/s for 10 seconds after which the it became stationary at 10 meters from the start point, for 10 seconds. The journey continued at a higher speed of 2 m/s for 5 seconds and halted (became stationary) again at 20 meters which was the maximum distance reached from the start point
The return journey to the start point started at the 20 meter mark and lasted for 5 seconds, at a speed of 4 m/s
The total distance moved, 'd', to and from the start point with reference to the graph is given as follows;
d = (From A to B) 10 m + (From B to C) 0 m + (From C to D) 10 m + (From D to E) 0 m + (From E to F) 20 m = 40 m
The total distance travelled in the journey is 40 m
The total displacement, [tex]\underset{d}{\rightarrow}[/tex] = 10 m + 10 m - 20 m = 0 m
Related Questions
match this and give me please please
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Answer:
1.) D
2.) E
3.) A
4.) B
5.)C
Explanation:
How is speed related to kinetic energy?
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Answer:
K.E. = 1/2mv^2
Explanation:
v is velocity (a vector) not speed (a scalar) but they have the same magnitude
Why the temperature of a resistor increase when a current pass through it
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Answer:
So, when an electrical charge passes through a resistor, some of that electrical energy is transferred into heat, increasing the temperature. This extra energy causes the particles in the resistor to vibrate more. With these particles moving more, it is more difficult to for the electrons to move through the resistor.
Can someone please help me with science.
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But for the second one all masses are the same but the bottom is twice as distant so the top is 4 times larger
7) When you place a metal saucepan on the heating element of a stove, heat is transferred from the element to the saucepan by:
A reflection.
B convection.
C conduction.
D radiation.
8) Which of the following can be described as being luminous :
A Streetlights (turned on)
B A road sign
C The moon
D Water
9) In the burning of fireworks during New Year displays, chemical potential energy is converted into:
A heat, light and sound energy.
B light and sound energy.
C sound and heat energy.
D gravitational potential energy and light.
10) Which would be the most appropriate description of how energy is distributed when a torch is turned on?
A 70% light energy, 30% thermal energy
B 70% thermal energy, 30% electrical energy
C 65% light energy, 30% thermal energy
D 40% thermal energy, 55% light energy
Answers
Answer:
Explanation:
7.Conduction
Assuming the pot is cold and the heating element is hot: Heat will be transferred from the element to the pan via conduction because they are in contact with one another.
8. C The moon
9. A heat, light and sound energy.
When fireworks explode, chemical energy is transformed into thermal energy, mechanical energy, radiant energy, and sound energy.
10.A 70% light energy, 30% thermal energy
When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy.
If number 10 is not correct then the answer is C.
what are newtons laws of motion?
Answers
Answer:
In classical mechanics, Newton's laws of motion are three laws that describe the relationship between the motion of an object and the forces acting on it. The first law states that an object either remains at rest or continues to move at a constant velocity, unless it is acted upon by an external force.
Explanation:
A current of 2 A flows through a resistor. The voltage across the resistor is 18 V.
pls I need this
Answers
Answer:
[tex]R=9\ \Omega[/tex]
Explanation:
Given that,
Current, I = 2 A
Voltage across the resistor, V = 18 V
We need to find the value of resistance of the resistor. Let the resistance be R. We can find it using Ohm's law i.e.
V = IR
Where
R is the resistance of the resistor
[tex]R=\dfrac{V}{I}\\\\R=\dfrac{18}{2}\\\\R=9\ \Omega[/tex]
So, the resistance of the resistor is equal to [tex]9\ \Omega[/tex].
Richard's doctor says that he has become obese. What health risks is Richard now facing?
Early signs of cardiovascular disease and sleep apnea
Unease getting around and breathing difficulties
Insulin resistance and low blood pressure
Bone thickening and respiratory problems
Question 4(Multiple Choice Worth 3 points)
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Answer:
The answer would be A.)Early signs of cardiovascular disease and sleep apnea.
Explanation:
I got it right on the hope test.
A plane mirror forms an image of an object because it ____________ light from the object.
Answers
Answer:
reflect
Explanation:
In order to see the image of an object in a mirror, you must sight at the image; when you sight at the image, light will come to your eye along that line of sight.
15. What is the impedance of a series combination of a resistance of 1KM and a capacitance of a capacitor 2 µF at a frequency of 50 Hz? Nt
Answers
Answer:
Z = 1879.64 Ω = 1.879 KΩ
Explanation:
First, we will find the capacitive reactance of the capacitor:
[tex]X_{c} = \frac{1}{2\pi fc}\\[/tex]
where,
Xc = Capacitive Reactance = ?
f = frequency = 50 Hz
C = Capacitance = 2 μF = 2 x 10⁻⁶ F
Therefore,
[tex]X_{c} = \frac{1}{2\pi(50\ Hz)(2\ x\ 10^{-6} F)}\\X_{c} = 1591.55\ \Omega[/tex]
This is an RC series circuit. In the RC circuit the value of impedance is given by the following formula:
[tex]Z = \sqrt{R^2 + X_{c}^2}\\Z = \sqrt{(1000\ \Omega)^2 + (1591.55\ \Omega)^2}\\[/tex]
Z = 1879.64 Ω = 1.879 KΩ
This graph shows a supply curve. A graph titled Supply Curve has Quantity Supplied on the x-axis, from 0 to 50 in increments of 10, and price on the y-axis, from 0 to 15 dollars in increments of 5 dollars. A line is drawn with points (10, 5 dollars), (20, 7 dollars), (30, 10 dollars), (40, 13 dollars), and (40, 15 dollars). What happens when the price of a good increases? The quantity of goods that are produced increases. The producer of the good is certain to make less money. The quantity of goods that are produced decreases. The quantity of goods that are produced stays about the same.
Answers
Answer:
A just took the quiz on edge
Explanation:
In the supply curve, when the price of a good increases, A. The quantity of goods that are produced increases.
What is supply?Supply simply means the quantity of goods and services that a supplier is willing to sell at a particular place, price and time.
In this case, when there's an increase in the price of goods, it should be noted that producers will supply more of the goods. This is done in order to generate more revenue.
Learn more about supply on:
https://brainly.com/question/11898489
what are two properties that lead to electromagnetic interactions? pls help I'm so confused and cant find the answer anywhere!!
Answers
Answer:
Electric charge. A fundamental property that leads to the electromagnetic interactions among particles that make up matter.
What is the velocity of the girl in Figure b? Please help me!!!!
Is the answer A,B,C,D,E, or F?
Answers
All electrical devices must have two of what
Answers
Answer:
a voltage source and a conductor.
Explnation:
All electric circuits have at least two parts: a voltage source and a conductor. The voltage source of the circuit
can anybody help me please?
Answers
Answer:
1,2,5
Explanation:
Velocity is speed with ?
To answer this question click the blank, then click the word in the word bank.
Word Bank:
A:Direction
B:slope
C:acceleration
Answers
Answer:
A. Direction
Explanation:
Velocity is the speed of something heading in a certain direction. If speed or direction changes, the velocity changes.
What is the objects average velocity?
Answers
Answer:
answer should be 10 because the line goes from (0,0) then to (1,10) and so on
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (60pts)
Answers
So since the boat has a lower density than the water, it will float.
So the answer is choice B
Identify what happens to the kinetic energy (KE) and gravitational potential energy (PE) of a rock as it falls.
KE and PE both increase.
KE and PE both decrease.
KE increases and PE decreases.
KE decreases and PE increases.
Answers
Answer:
KE increases and PE decreases.
Explanation:
POTENTIAL ENERGY (PE):
The potential energy of the rock depends upon the height of the rock, as given by the following formula:
P.E = mgh
Therefore, the potential energy will be highest at the initial point due to the highest height attained by rock. As the rock falls, its height will decrease as a result its potential energy will also decrease.
KINETIC ENERGY (KE):
The kinetic energy of the rock depends upon the velocity of the rock, as given by the following formula:
[tex]K.E = \frac{1}{2}mv^2[/tex]
Therefore, the kinetic energy will be zero at the initial point due to the zero velocity of the rock. As the rock falls, its velocity will increase as a result its kinetic energy will also increase.
Hence, the correct option will be:
KE increases and PE decreases.
Shearing of the wool is done with special instruments called_____
Answers
Answer:
The machine used is called a squaring shear, power shear, or guillotine.
Explanation:
Answer:
sheep shearing.
i hope this helps
Acceleration occurs when an object changes its_ or _or both
Answers
Answer:
Acceleration occurs when an object changes its VELOCITY or DIRECTION or both
Explanation:
Why does it take a long time for a train to come to a complete stop?
A. unbalanced forces
B. balanced forces
C. inertia
Answers
inertia is the factor that makes the train hard to stop taking a long time to completely come to a stop
Answer:
Intertia
Explanation:
Interia is like a property in whichit continues in its existing state of (rest or uniform motion ) in a straight line, unless that state is changed by an external force.
But
Balanced forces is just when two forces act on an onject and the net force is zero. Inshort it doesnt hve any affect on the object.
Unbalanced forces is just when two forces act on an onject and the net force is NOT zero. Inshort it does hve any affect on the object.
I hope im right
Name three things that are NOT made of matter
Answers
Answer:
Light.
Sound.
Heat.
Energy.
Gravity.
Explanation:
A 6.3 μC electric charge is placed in an Electric Field with a magnitude of 5.0 x 105 charge due to the Electric Field? N/C. What is the electric force on the charge due to the electric field
Answers
Answer:
F = 3.15 N
Explanation:
Given electric charge, q = 6.3 μC
The magnitude of electric field, [tex]E=5\times 10^5\ N/C[/tex]
We need to find the electric force on the charge due to the electric field. The electric force is given by :
F = qE
Putting all the values,
[tex]F=6.3\times 10^{-6}\times 5\times 10^5\\\\F=3.15\ N[/tex]
So, the required force on the charge is 3.15 N.
The EMF does not depend on which of the following?
A. The magnetic field strength
B. The number of electrons in the magnetic field
C. The velocity of the wire in the field
D. The length of the wire in the magnetic field
Answers
Answer:
Explanation:
When a wire of length L is moved with velocity v , perpendicular to magnetic field B , EMF will be produced at its two ends . EMF can be calculated with the help of following expression
EMF = BLv
As per this formula , EMF produced will not depend upon number of electrons in the magnetic field.
So B is the right choice.
What is the rate at which velocity changes called?
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I’ll love you forever if you help me <3
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In what areas is the Big Bang theory inadequate or weak?
Answers
5) What advice would you share with your colleagues about the pandemic
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Answer:
Advice on how to stay safe and have fun during the pandemic becuase most people are in lockdown and they are having trouble trying to have a fun but they can
What is the answer for question 7?
Answers
Answer:
Jumping on a trampoline.
Answer:
Explanation: