8. At track practice, a student runs around an oval shaped 400 meter long track 4
times. Determine the distance and displacement of the student.
Answers
The distance travelled by the student is 1600m and the displacement is 0.
Displacement is the direction from the beginning point and the length of a straight path from the starting point to the finishing point, whereas distance is the length of a path that connects two places.
Displacement is a vector quantity that does not take into consideration the actual path taken; instead, it quantifies the distance between the beginning point and the finishing position.
Given:
Track length = 400m
No. of rounds = 4
To find:
Distance, d = ?
Displacement, D = ?
Formula:
Distance, d = Track length x No. of rounds
Displacement, D = End point – Start point
Calculations:
d = 400 x 4
d = 1600m
D = 0 since the start and end point are same.
Result:
The distance travelled is 1600m with 0 displacement.
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Related Questions
An 80 kg runner has 3,000 J of kinetic energy. What is her velocity in m/s?
Answers
Answer: 8.6m/s
Explanation:From KE=1/2mv^2
In order to make v the subject of the formula we divide both sides by 1/2m. Thus V^2 will be left alone on the RHS. But we are looking for v and not v^2. Thus we find the square root of KE1/2m
Meaning V= sqrt[3000÷1/2 of 80]
=sqrt[3000÷40]
=sqrt(75)
=8.6m/s
melissa mccarthy and sandra bullock movies together
Answers
Melissa McCarthy and Sandra Bullock have appeared in one movie together, which is "The Heat" released in 2013.
In this comedy film, McCarthy plays the role of a detective while Bullock portrays an FBI special agent. The movie follows their unlikely partnership as they team up to take down a drug lord.
"The Heat" (2013): This action-comedy film directed by Paul Feig stars Melissa McCarthy as Detective Shannon Mullins and Sandra Bullock as FBI Special Agent Sarah Ashburn. The story follows the unlikely pairing of the two law enforcement officers as they team up to take down a drug lord.
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What is the electric potential energy of a charge that experiences a force of 3. 6 × 10–4 N when it is 9. 8 × 10–5 m from the source of the electric field? 3. 5 × 10–8 J 4. 6 × 10–4 J 2. 7 × 10–1 J 3. 7 × 100 J.
Answers
The electric potential energy of the charge will be =3.5*10^8 J
What is Electric potential energy?Electric potential energy is the energy that is needed to move a charge against an electric field.
F=Force experienced by the charge = 3.6*10^-4 N
q1 = magnitude of charge producing the electric field
q2 = magnitude of charge experiencing the electric force
r1 = distance between the two charges
Electric force experienced by the charge is given using coulomb's law as
\(F=\dfrac{kq_1q_2}{r^2}\)
\(3.6\times 10^{-4}=\dfrac{9\times 10^9 q_1q_2}{(9.8\times 10^{-5})^2}\)
\(q_1q_2=3.84\times 10^{-22}\)
Electric potential energy of the charge can be given as
\(U=\dfrac{kq_1q_2}{r}\)
\(U=\dfrac{(9\times 10^9)q_1q_2}{(9.8\times 10^{-5})^2}\)
\(U=3.5\times 10^{-8}\ J\)
Thus Electric potential energy of the charge can be given as \(U=3.5\times 10^{-8}\ J\)
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A weight of 30 N is located 10 cm from the fulcrum of a simple balance beam. At what distance from the fulcrum should a weight of 20 N be place on the opposite side to balance the system? a) 15 m b) 1.5 m c) 15 cm d) 0.15 cm e) 12.5 cm
Answers
To balance the system, the weight of 20 N should be placed at a distance of 15 cm from the fulcrum. Therefore, the correct answer is option c) 15 cm.
To balance the system, the torques on both sides of the fulcrum should be equal. Torque is calculated by multiplying the weight by the distance from the fulcrum.
Given:
Weight 1 = 30 N
Distance 1 = 10 cm (or 0.1 m)
Let the distance for weight 2 be x.
Weight 2 = 20 N
Distance 2 = x
Since the torques must balance, we can set up the equation:
Weight 1 × Distance 1 = Weight 2 × Distance 2
30 N * 0.1 m = 20 N × x
3 N·m = 20 N·x
To solve for x, divide both sides by 20 N:
x = 3 N·m / 20 N = 0.15 m (or 15 cm)
Therefore, the correct answer is option c) 15 cm.
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What is meant when we say that a quantity is a vector?
I need a quick answer please ;)
Answers
Let ϕ=e x
cosy. Let ϕ represent either temperature or electrostatic potential. Refer to Problem 11 for definitions and find: (a) The direction in which the temperature is increasing most rapidly at (1,−π/4) and the magnitude of the rate of increase. (b) The rate of change of temperature with distance at (0,π/3) in the direction i+j 3
. (c) The direction and magnitude of the electric field at (0,π). (d) The magnitude of the electric field at x=−1, any y. 14. (a) Suppose that a hill (as in Fig. 5.1) has the equation z=32−x 2
−4y 2
, where z= height measured from some reference level (in hundreds of feet). Sketch a contour map (that is, draw on one graph a set of curves z= const.); use the contours z=32,19,12,7,0. (b) If you start at the point (3,2) and in the direction i+j, are you going uphill or downhill, and how fast? 15. Repeat Problem 14b for the following points and directions. (a) (4,−2),i+j (b) (−3,1),4i+3j (c) (2,2),−3i+j (d) (−4,−1),4i−3j Determine whether the fol ∑ n=1
[infinity]
(−1) n+1
n 2
+16
10n
Answers
a) The direction in which the temperature is increasing most rapidly is the direction of the gradient vector ∇ϕ, which is ((1/√2) * e)i + ((1/√2) * e)j.
b) The rate of change of temperature with distance at (0, π/3) in the direction i + j√3 is (√2 + √3)/(2√2) * e.
c) The direction of the electric field is opposite to the gradient vector ∇ϕ
Let ϕ = e^x * cos(y), where ϕ represents either temperature or electrostatic potential.
I'll address each part of the problem separately:
(a) To find the direction in which the temperature is increasing most rapidly at (1, -π/4), we need to calculate the gradient of ϕ and evaluate it at that point.
The gradient of ϕ is given by ∇ϕ = (∂ϕ/∂x)i + (∂ϕ/∂y)j, where i and j are unit vectors in the x and y directions, respectively.
Taking partial derivatives of ϕ with respect to x and y, we have:
∂ϕ/∂x = e^x * cos(y)
∂ϕ/∂y = -e^x * sin(y)
Evaluating the partial derivatives at (1, -π/4), we get:
∂ϕ/∂x = e * cos(-π/4) = (1/√2) * e
∂ϕ/∂y = -e * sin(-π/4) = (1/√2) * e
Therefore, the gradient of ϕ at (1, -π/4) is:
∇ϕ = ((1/√2) * e)i + ((1/√2) * e)j
The direction in which the temperature is increasing most rapidly is the direction of the gradient vector ∇ϕ, which is ((1/√2) * e)i + ((1/√2) * e)j. The magnitude of the rate of increase is given by the magnitude of the gradient vector, which is √2 * e.
(b) To find the rate of change of temperature with distance at (0, π/3) in the direction i + j√3, we need to calculate the directional derivative of ϕ in that direction.
The directional derivative is given by the dot product of the gradient vector ∇ϕ and the unit vector in the given direction.
The unit vector in the direction i + j√3 is (1/2)i + (√3/2)j.
Calculating the dot product, we have:
∇ϕ · (1/2)i + (√3/2)j = ((1/2) * (1/√2) * e) + ((√3/2) * (1/√2) * e) = (1/2√2 + √3/2√2) * e = (√2 + √3)/(2√2) * e
So, the rate of change of temperature with distance at (0, π/3) in the direction i + j√3 is (√2 + √3)/(2√2) * e.
(c) To determine the direction and magnitude of the electric field at (0, π), we can use the relationship between the electric field and the gradient of the electrostatic potential.
The electric field E is given by E = -∇ϕ, where ∇ϕ is the gradient of the electrostatic potential.
Using the gradient formula from part (a), we have:
∇ϕ = ((1/√2) * e)i + ((1/√2) * e)j
Therefore, the electric field at (0, π) is:
E = -((1/√2) * e)i - ((1/√2) * e)j
The direction of the electric field is opposite to the gradient vector ∇ϕ,
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This response addresses various math problems related to temperature, electric fields, and contour maps. It explains how to find the direction and magnitude of the temperature change, the rate of change of temperature with distance, the direction and magnitude of the electric field, and whether you are going uphill or downhill on a hill. It also mentions that the given series cannot be evaluated without more information.
Explanation:(a) To find the direction in which the temperature is increasing most rapidly at (1, -π/4), we need to find the gradient of ϕ at that point. The gradient is a vector that points in the direction of the steepest slope of a function. So, we take the partial derivatives of ϕ with respect to x and y and evaluate them at (1, -π/4). The direction of the gradient vector gives us the direction of the fastest increase in temperature. The magnitude of the rate of increase is the length of the gradient vector.
(b) To find the rate of change of temperature with distance at (0, π/3) in the direction i+j√3, we need to find the directional derivative of ϕ in that direction. The directional derivative measures the rate at which a function changes in the direction of a given vector. It can be found by taking the dot product of the gradient vector and the unit vector in the given direction.
(c) To find the direction and magnitude of the electric field at (0, π), we need to find the gradient of ϕ at that point. The gradient gives us the direction of the electric field, and its magnitude gives us the strength of the field.
(d) To find the magnitude of the electric field at x = -1, any y, we need to find the gradient of ϕ at (x, y) and then evaluate it at x = -1. The magnitude of the gradient vector gives us the magnitude of the electric field.
(a) The contour map for z = 32 - x^2 - 4y^2 with contours z = 32, 19, 12, 7, and 0 is a set of curves that represent points on the surface of the hill with the same height. Each contour corresponds to a different height level.
(b) To determine if you are going uphill or downhill and how fast from the point (3, 2) in the direction i+j, you need to find the gradient of the hill function at (3, 2) and take the dot product of the gradient vector and the unit vector in the given direction. The sign of the dot product tells us the direction of the slope (uphill or downhill) and the magnitude tells us how fast you are going.
(a) To determine if you are going uphill or downhill and how fast from the point (4, -2) in the direction i+j, you need to find the gradient of the hill function at (4, -2) and take the dot product of the gradient vector and the unit vector in the given direction. The sign of the dot product tells us the direction of the slope (uphill or downhill) and the magnitude tells us how fast you are going.
(b) To determine if you are going uphill or downhill and how fast from the point (-3, 1) in the direction 4i+3j, you need to find the gradient of the hill function at (-3, 1) and take the dot product of the gradient vector and the unit vector in the given direction. The sign of the dot product tells us the direction of the slope (uphill or downhill) and the magnitude tells us how fast you are going.
(c) To determine if you are going uphill or downhill and how fast from the point (2, 2) in the direction -3i+j, you need to find the gradient of the hill function at (2, 2) and take the dot product of the gradient vector and the unit vector in the given direction. The sign of the dot product tells us the direction of the slope (uphill or downhill) and the magnitude tells us how fast you are going.
(d) To determine if you are going uphill or downhill and how fast from the point (-4, -1) in the direction 4i-3j, you need to find the gradient of the hill function at (-4, -1) and take the dot product of the gradient vector and the unit vector in the given direction. The sign of the dot product tells us the direction of the slope (uphill or downhill) and the magnitude tells us how fast you are going.
The given series, ∑[infinity](−1)^(n+1)/(n^2+16)/(10n), can be simplified into a summation series. However, it is incomplete and may contain typos or irrelevant parts, so it cannot be evaluated further without additional information or corrections.
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10 points to whoever answers!!
What kind of energy does the sun provide? What kind of energy represents movement? If you rub your hands together quickly, you are increasing what kind of energy?
Answers
kinetic energy
mechanical energy
Answer:
The sun provides light energy, which turns into heat when it gets to Earth. rubbing hands create heat energy known as friction
Explanation:
The sun produces heat and electromagnetic radiation as a product of the fusion of hydrogen nuclei into helium nuclei. The radiation produced covers most of the electromagnetic spectrum, including visible, ultraviolet and infrared light, as well as X-rays and radio waves.
Convert-
a) 42° to kelvin
b) 56k to °C
c) 37° to °F
d) 32° to °C
Answers
Answer:
k is celcius/farhneit +273
c is 5/9 f-32
f is 9/5 (c+32)
Answer:
A. 318.15
B.-217.15
C. 132.8
D. 0
Explanation:
K − 273.15 = °C/°F
°C/ °F + 273.15 = K
(°C × 9/5) + 32 = °F
(°F − 32) × 5/9 = 0°C
A car moves 6 miles North and turns around and travels 10 miles South.
How far did the car travel? *
Answers
how much energy is stored in a 2.60-cm-diameter, 14.0-cm-long solenoid that has 150 turns of wire and carries a current of 0.780 a ?
Answers
The energy stored in a 2.60-cm-diameter, 14.0-cm-long solenoid that has 150 turns of wire and carries a current of 0.780 a is 0.016 joules.
The energy stored in a solenoid is given by the equation:
U = (1/2) * L * I²
where U is the energy stored, L is the inductance of the solenoid, and I is the current flowing through it.
The inductance of a solenoid can be calculated using the equation:
L = (μ * N² * A) / l
where μ is the permeability of the medium (in vacuum μ = 4π × 10⁻⁷ H/m), N is the number of turns of wire, A is the cross-sectional area of the solenoid, and l is the length of the solenoid.
First, let's calculate the inductance of the solenoid:
μ = 4π × 10⁻⁷ H/m
N = 150
A = πr² = π(0.013 m)² = 0.000530 m²
l = 0.14 m
L = (4π × 10⁻⁷ H/m * 150² * 0.000530 m²) / 0.14 m = 0.051 H
Now, we can calculate the energy stored in the solenoid:
I = 0.780 A
U = (1/2) * L * I^2 = (1/2) * 0.051 H * (0.780 A)² = 0.016 J
Therefore, the energy stored in the solenoid is 0.016 joules.
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A wave has a frequency of 500 Hz and a wavelength of 20m. At what speed is this wave traveling?
A. 1000 Hz
B. 1000 m
C. 10,000 m
D. 10,000m/s
Pls help!!!
Answers
Answer:
may be answer is 1000 HZ
a 77 N net force is applied to a box which slides horizontally across a floor for 6.7 m. What amount of work is done on the box by the net force ?
Answers
W=77*6.7
W=515.9 J
What does 2nd law of thermodynamics say about heat engine?
Answers
The Second Law of Thermodynamics states that the total entropy of an isolated system can only increase over time.
What is thermodynamics?Thermodynamics is the branch of physics that deals with the relationships between heat, work, temperature and energy. It is the study of how energy is converted from one form to another and how it is used to do work. Thermodynamics is concerned with the transfer of energy from one object or system to another and how that energy can be transformed or converted into different forms. It also explores the relationships between entropy, temperature, and energy. Thermodynamics can also be used to predict how systems will behave when exposed to a given amount of energy. Thermodynamics is a powerful tool used to understand the behavior of natural systems and to develop efficient technologies.
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what energy refers to the kinetic energy of moving particles of matter
Answers
Answer:
Thermal Energy
Explanation:
If 0, point, 035, p, c,0. 035pc of charge is transferred via the movement of a, l, start superscript, 3, plus, end superscript,alx 3+ ions, how many of these must have been transferred in total?.
Answers
The total number of \(Al^{+3}\) ions (aluminum cations) needed to b transferred in the current is 72917 using principles of electrochemistry.
Total charge transferred is given to be \(0.035\\\) \(pC\).
Since, \(1 p C = 1\) × \(10^{-12}\) \(C\\\)
Total Charge (\(Q\)) = \(0.035\) × \(10^{-12}\) \(C\)
Charge on each aluminum cation \(Al^{+3}\) = Total charge of extra protons contained in each aluminum cation.
Charge on a single proton = \(1.6\) × \(10^{-19}\) \(C\)
Extra protons on each aluminum cation (\(Al^{+3}\)) = \(3\)
Thus charge on each aluminum cation (\(Al^{+3}\)) = \(3\) × \(1.6\) × \(10^{-19}\)
Now let the total number of aluminum cations (\(Al^{+3}\)) be \(n\).
Thus according to principles of electrochemistry:
\(n\) × \(3\) × \(1.6\) × \(10^{-19}\) = \(0.035\) × \(10^{-12}\)
Solving the equation for \(n\), we get \(n\) = \(72917\)
Thus, in total 72917 ions of \(Al^{+3}\) are needed to be transferred in the current.
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The correct question should be:
If 0.035pC of charge is transferred via the movement of Al3+ ions, how's many of these must be transferred in total?
Which of the following statements is true?
1.Heat is transferred in solids by convection.
2.Both liquids and gases are fluids.
3.Temperature is the same as heat.
4.Objects moving through air don't experience friction.
Answers
Which of the following is not a density-dependent factor limiting a population growth?
a) intra-specific competition
b) switching behavior of a predator
c) a stress syndrome that alters hormone levels
d) a limited number of available nesting site
Answers
Answer:A.
i know its a, i did quiz
What is one property of a wave that determines how much it will diffract
when it encounters an obstacle? *
O frequency
O period
O amplitude
O wavelength
Answers
Which of the following determine the chemical properties of an element?
A)Its protons
B)Its inner shell electrons
C)The size of its nucleus
D)Its valence electrons
Answers
Answer:
D, valence electrons.
Explanation:
Since the number of shells are dependent on the number of valence electrons, which determines the period of the element. Because each shell of an element holds a total of 8 valence electrons, there is a chemical association that is being made between the outer electrons and the atom.
Answer:
The correct answer is D. Its valence electrons.
Explanation:
The valence electrons are those that participate in reactions with other elements. The fewer valence electrons that an element has, the less stable it becomes; an element with a full valence electron shell does not frequently interact with other elements. In this way, the valence electrons determine the chemical properties of an element.
Hope this helps!
Find the velocity of a runner who has a mass of 75 kg and 3,700 Joules of energy.
Answers
Answer:
125 joules
Explanation:
The velocity of the runner having a mass of 75 kg will be 9.93 m/s.
What is Kinetic energy of the body?
The energy of the body by virtue of its motion is called its kinetic energy.
Given is velocity of a runner who has a mass of 75 kg and 3,700 Joules of energy.
The kinetic energy of the body is given by the following formula -
KE = 1/2 mv².
Substituting the values -
3700 = 1/2 x 75 x v²
7400 = 75 x v²
v² = 7400/75
v² = 98.66
v = 9.93 m/s
Therefore, the velocity of the runner having a mass of 75 kg will be 9.93 m/s.
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Help me please i need help on this
Answers
2.Geology- the study of minerals and rocks
3.Oceanography- the study of water mainly oceans
4.Meteorology- the study of weather and climate
Determine whether elements thatvfit the following descriptions are more likelyvto be metals or non metals
Answers
Elements with a shiny or metallic luster, good conductivity, malleability, and high melting points are more likely to be metals.Elements with a dull appearance, poor conductivity, brittleness, and lower melting points are more likely to be nonmetals
To determine whether elements fitting certain descriptions are more likely to be metals or nonmetals, we can consider the general properties and characteristics associated with each group.
Metals: Metals are typically solid at room temperature (with the exception of mercury).
They have a shiny or metallic luster.
Metals are good conductors of heat and electricity.
They tend to be malleable and ductile, meaning they can be hammered into thin sheets and drawn into wires.
Metals generally have high melting and boiling points.
Nonmetals: Nonmetals can exist in different states at room temperature (solid, liquid, or gas).
They often have a dull appearance.
Nonmetals are poor conductors of heat and electricity.
They tend to be brittle and lack malleability or ductility.
Nonmetals generally have lower melting and boiling points compared to metals. It's important to note that there are exceptions and some elements may exhibit properties that fall in between metals and nonmetals, known as metalloids. Examples of metalloids include silicon, germanium, and arsenic. When analyzing specific elements or groups of elements, it's always recommended to refer to the periodic table for accurate information about their classification as metals, nonmetals, or metalloids.
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t is 165 cm from your eyes to your toes. you are standing 200 cm in front of a tall mirror. how far is it from your eyes to the image of your toes?
Answers
The calculated total distance from the eyes to the toes is given by 432.7 cm.
Given:
Distance, x = 200 cm
Horizontal distance, h = 165 cm
We can use the idea of virtual images created by mirrors to calculate the distance between your eyes and the image of your toes in the mirror.
When you stare at a mirror, light rays from your eyes reflect off of it and give the impression that they are coming from behind the mirror. The virtual reflection created by the mirror appears to be at the same height as you are in front of it.
The horizontal distance is:
d = 2x
d = 2 × 200
d = 400 cm
The total distance from eyes to toes is:
D = √(d² + h²)
D = √(400² + 165²)
D = 432.7 cm
Hence, the calculated distance from the eyes to the toes is given by 432.7 cm.
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True or false? in a driven rlc circuit, the peak value for voltage does not occur at the same time as the peak value for current. they are separated by some phase angle .
Answers
This statement is True- in a driven LCR circuit, the peak value for voltage does not occur at the same time as the peak value for current. they are separated by some phase angle.
An LCR circuit is an electrical circuit that consists of an inductor (L), capacitor (C), and resistor (R) linked in series or parallel. It is also referred to as a tuned circuit, resonant circuit, or LCR circuit. Phasors provide a better framework for understanding the LCR circuit analysis. A spinning quantity is a phasor.
A crucial illustration of a resonant circuit is the LCR circuit. At resonance, the phase angle is equal to zero and the impedance is at its lowest value, Z=R. To control the amount of light emitted by electronic devices like computers, televisions, and smartphones, the LCR circuit is a component of these gadgets.
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what type of massage involves a soft continuous stroking movement
Answers
The type of massage that involves a soft continuous stroking movement is called Effleurage.
Effleurage is a massage technique commonly used in various massage modalities, including Swedish massage, aromatherapy massage, and relaxation massage.
During effleurage, the massage therapist applies gentle, gliding strokes with their hands or fingertips over the client's body. The strokes are long, smooth, and rhythmic, creating a continuous and flowing motion. Effleurage can be performed using different levels of pressure, depending on the client's preference and the purpose of the massage.
Effleurage serves several purposes in a massage session. It helps to warm up the muscles, relax the client, and promote the circulation of blood and lymphatic fluids. It also aids in the application of massage oils or lotions and provides a soothing and comforting sensation to the recipient.
Overall, effleurage is a foundational technique in massage therapy that helps create a relaxing and enjoyable experience for the client while providing various physiological and psychological benefits.
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Identify Variables - help
Answers
In science, variables are factors or conditions that change or affect the outcome of a study. They can be classified into three types: independent variables, dependent variables, and controlled variables. Dependent variables are those that researchers measure to assess the impact of independent variables.
In science, variables are factors or conditions that change or affect the outcome of a study. They can be classified into three types: independent variables, dependent variables, and controlled variables. Identifying variables is critical in any research, as they enable scientists to control the study's conditions, determine cause-and-effect relationships, and achieve accurate results.
Independent variables are those that researchers manipulate to investigate their effect on the dependent variable. They are also called explanatory or predictor variables.
For instance, in a study investigating the effect of different levels of fertilizer on plant growth, the independent variable is the level of fertilizer.
Dependent variables are those that researchers measure to assess the impact of independent variables.
They are also called response variables. In the plant growth study, the dependent variable is the growth rate or size of the plants.
Controlled variables are those that researchers hold constant throughout the study to reduce the impact of extraneous factors on the outcome.
They are also called confounding or intervening variables. In the plant growth study, controlled variables include the type of plant, the amount of water, the light exposure, and the temperature.
In conclusion, identifying variables is crucial in scientific research to achieve accurate results, establish cause-and-effect relationships, and control the study's conditions. Independent, dependent, and controlled variables are the three types of variables used in scientific studies.
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a block is given an initial velocity of 5.00 m/s up a frictionless incline of angle 20 degrees. the magnitude of the block’s acceleration is 2.5 m/????2 while it is on the ramp. how far up the incline does the block get before sliding down again?
Answers
The block will incline up with projectile motion until 0.085 m before sliding down.
We need to know about the projectile motion to solve this problem. The projectile motion is known as parabolic motion and the velocity is divided by 2 axes.
vox = vo cosA
voy = vo sinA
where vox is initial velocity of x axis, voy is initial velocity of y axis, vo is initial velocity and A is the angle.
From the question above, the given parameters are
vo = 5 m/s
A = 20⁰
By using the uniform motion, where vty = 0 m/s. Hence,
vty² = voy² - 2gh
0 = 5.sinA - 2 . 10 . h
20h = 5 . sin20⁰
h = 1/4 . 0.34
h = 0.085 m
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PLEASE HELP 20 POINTS
A car of mass 700 kg and moving at a speed of 30 m/s collides with a stationary truck of mass 1400 kg, and the two vehicles lock together on impact. The combined velocity of the car and truck after the collision is m/s.
Answers
10m/s
Explanation:
(m1)(v1)+(m2)(v2)= (m1+m2)(v[final])
(700)(30)+(1400)(0)= (700)(v)+(1400)(v)
21000= 2100v
v=10m/s
A red cart has a mass of 4 kg and a velocity of 5 m/s. There is a 2-kg blue cart that is parked and not moving, thus its velocity is 0 m/s.
The red cart hits the blue cart.
The blue cart starts to move forward with a velocity of 6 m/s. The red cart bounces off of the blue cart and moves backwards, at a velocity of 2 m/s.
Name the TYPE of collision that occurred.
Calculate the BEFORE momentum of the red cart. Use correct units.
Calculate the BEFORE momentum of the blue cart. Use correct units.
Calculate the AFTER momentum of the red cart. Use correct units.
Calculate the AFTER momentum of the blue cart. Use correct units.
Calculate the SYSTEM’S TOTAL MOMENTUM before the collision. Use correct units.
Calculate the SYSTEM’S TOTAL MOMENTUM after the collision. Use correct units.
EXPLAIN how this example supports the Law of Conservation of Momentum. Use the evidence to support your answer of how this example supports the Law of Conservation of Momentum. Use correct units. Be specific.
Answers
Answer:dam hold up
Explanation:
Which moon phase come after a new moon and before a first quarter moon?