My commute to school is a constant distance, but the time it takes to get there fluctuates owing to traffic.
What is displacement?If an object moves with respect to a reference frame, such as when a passenger travels to the back of an airliner or a professor moves to the right with respect to a whiteboard, the item's position changes.
This change in location is described as displacement.
My commute to school is a constant distance, but the time it takes to get there fluctuates owing to traffic,
The initial and the final position of the commute is the same, but the displacement varies with the route which affects my car's speed and where it is in line at stop lights.
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A baseball bat is a lever. Which of the following explains how a baseball bat differs from a lever like a pry bar?
Complete question is;
A baseball bat is a lever. Which of the following explains how a baseball bat differs from a lever like a pry bar?
A) In a baseball bat, effort force is smaller and is applied over a large distance, while the resistance force is smaller and is applied over a long distance.
B) In a baseball bat, effort force is smaller and is applied over a large distance, while the resistance force is smaller and is applied over a short distance.
C) In a baseball bat, effort force is larger and is applied over a short distance, while the resistance force is smaller and is applied over a long distance.
D) In a baseball bat, effort force is larger and is applied over a short distance, while the resistance force is smaller and is applied over a short distance.
Answer:
C) In a baseball bat, effort force is larger and is applied over a short distance, while the resistance force is smaller and is applied over a long distance.
Explanation:
The correct answer is option C. This is because unlike in a pry bar, the effort force when swinging a baseball bat is larger and it is applied over a short distance; and in return the resisting force is smaller and it's applied over a long distance.
different between density and realative density
Answer:
Density is mass of the object per unit volume. Relative density is the density of a body with respect to another. Simply, density=mass/volume.
Which does not contain a lens?
a mirror
binoculars
an eye
a camera
Help Me get A good grade PLZ
When blocking in football, why does a defending lineman often attempt to get his body under that of his opponent and push forward?
Answer:
because he is trying to break past you and sack your quarterback
Explanation:
what does this quote mean?
Answer:
Basically, it means that you never know until you try.
Explanation:
Momentum is a product of mass and _____.
Answer:
Momentum, product of the mass of a particle and its velocity. ... Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle.
A rally car accelerates from 10 m s−1 to 58 m s−1 in 8 seconds as it moves along a straight road. Given that the acceleration is constant, what is the acceleration of the car?
Answer:
a = 6 [m/s²]
Explanation:
To solve this problem we must use the following equation of kinematics
[tex]v_{f} =v_{o} +a*t[/tex]
where:
Vf = final velocity = 58 [m/s]
Vo = initial velocity = 10 [m/s]
a = acceleration [m/s²]
t = time = 8 [s]
Now replacing:
58 = 10 + (a*8)
58 - 10 = 8*a
48 = 8*a
a = 6 [m/s²]
A ferry boat is 4.0 m wide and 6.0 m long. When a truck pulls onto it,
the boat sinks 4.00 cm in the water, What is the weight of the boat?
Which is one limitation to technological design?
being innovative
designing a solution
having product appeal
identifying a problem
Answer:
c. Having product appeal
Explanation:
Answer:
c
Explanation:
Describe Kinetic Energy.
a supersonic aircraft travels faster than the speed of sound. What might be the top speed of such an aircraft? 200 Kilometers per hour 500 Kilometers per hour O 1000 Kilometers per hour O 1500 Kilometers per hour
1500 kpm
Erica (39 kg ) and Danny (46 kg ) are bouncing on a trampoline. Just as Erica reaches the high point of her bounce, Danny is moving upward past her at 4.6 m/s . At that instant he grabs hold of her.
Answer:
V = 2.79 m/s
Explanation:
Momentum before = momentum after
Erica's momentum = 0
Danny momentum = 49 kg * 4.9 m/s = 240.1 kg-m/s
240.1 + 0 = (37 + 49) kg * V
86 V = 240.1
V = 2.79 m/s
Please help me on due today
A personal enrichment goal is related to your life outside the classroom. You might set a goal to read every day or take on a new challenge in an extracurricular team, sport, or activity.
Your completed portfolio will demonstrate how you worked to achieve your stated goals.
• Step 1: Decide what you want to achieve.
• Step 2: Set your goal.
• Step 3: Decide what actions you need to take to reach your goal.
• Step 4: Set a time frame.
• Step 5: Think about your assets and obstacles.
Subject-Matter Achievement Goal
1. My subject-matter achievement goal is:
Answer:
2. My action steps are:
Answer:
3. My time frame is:
Answer:
4. Assets and Strengths:
Answer:
5. Motivation:
Answer:
6. Obstacles:
Answer:
7. Solutions:
Answer:
Study/Organizational Skills Goal
8. My study/organizational skills goal is:
Answer:
9. My action steps are:
Answer:
10. My time frame is:
Answer:
11. Assets and Strengths:
Answer:
12. Motivation:
Answer:
13. Obstacles:
Answer:
14. Solutions:
Answer:
Personal Enrichment Goal
15. My personal enrichment goal is:
Answer:
16. My action steps are:
Answer:
17. My time frame is:
Answer:
18. Assets and Strengths:
Answer:
19. Motivation:
Answer:
20. Obstacles:
Answer:
21. Solutions:
Answer:
Subject-Matter Achievement Goal
1. My subject-matter achievement goal is:
Answer: Read 1 full chapter book in 1 week
2. My action steps are:
Answer: Read an equal amount of chapters every day for a week
3. My time frame is:
Answer: 1 week
4. Assets and Strengths:
Answer: ability to focus,
5. Motivation:
Answer: Great interest in the book I chose
6. Obstacles:
Answer: Might lose page number, forget where I am at in the book, forget to read one day
7. Solutions:
Answer: Get or make a bookmark, keep a personal reading log, set alarm for a certain time each day
Study/Organizational Skills Goal
8. My study/organizational skills goal is:
Answer: manage my time better
9. My action steps are:
Answer: planning things out to be more organized
10. My time frame is:
Answer: from now to the end of the school year
11. Assets and Strengths:
Answer: a planner so I can pace myself
12. Motivation:
Answer: give breaks and take time to do things I enjoy
13. Obstacles:
Answer: leaving things last minute
14. Solutions:
Answer: planning to do certain things before a certain day
This can be for any of those goals
Personal Enrichment Goal
15. My personal enrichment goal is:
Answer: Stay healthy
16. My action steps are:
Answer: eat healthier foods
17. My time frame is:
Answer: now to the end of the school year
18. Assets and Strengths:
Answer: I don't make a big deal out of eating veggies and stuff
19. Motivation:
Answer: treat myself every so often
20. Obstacles:
Answer: Craving junk food
21. Solutions:
Answer: find a way to make healthier foods taste similar to junk food (EX. Put cheese on broccoli)
what is the slope of the line
Answer:
[tex]m=\frac{1}{3}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Explanation:
Step 1: Define
Point (0, -1)
Point (3, 0)
Step 2: Find slope m
Substitute: [tex]m=\frac{0+1}{3-0}[/tex]Add/Subtract: [tex]m=\frac{1}{3}[/tex]Why is your physical and mental health important?
Answer: Mental health and physical health are very closely connected. Mental health plays a major role in your ability to maintain good physical health. Mental illnesses, such as depression and anxiety, affect your ability to participate in healthy behaviors.
Explanation: Hope this helped. Have a great day!!!!
Answer:
Both maths are very important to our daily lives. Physical math helps us understand the reality of life. Learning to do certain math strategies is the first stage to finding answers to problems. Mental math can help us get answers faster through memory. This can help improve strategic methods and strengthen our minds.
A boxer hits punching bag and gives it a change in momentum of 12 kg multiplied by m divided by s over 7.0ms what is the magnitude of the net force on the punching bag
Answer: 1700
Explanation:
a runner makes one lap around a 200m track in 25s, what is the runners (a) average speed and (b) average velocity
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What is the Range of the projectile motion?
Answer:
Range of projectile, R
For projection above ground surface, the range of the angle of projection with respect to horizontal direction, θ, is 0° ≤ θ ≤ 90° and the corresponding range of 2θ is 0° ≤ 2θ ≤ 180°.S
hope you're looking for this.
my teacher gave us an answer saying "The sugar in soda does this because it doesn’t settle at the bottom of its container." and were supposed to get an 8 letter word and the fourth letter has an s and i dont know what the word is
Answer:
dissolve
Explanation:
what are factors that may affect the potential energy? (help)
Answer:
The factors that affect an object's gravitational potential energy are its height relative to some reference point, its mass, and the strength of the gravitational field it is in.
Explanation:
hope this helps
The factors affecting potential energy of a body are mass, acceleration due to gravity, and height above the ground.
What is potential energy?Potential energy is the energy that a body possess as a resulting its state or position relative to the ground.
Mathematically;
Potential energy = mass × acceleration due to gravity × heightTherefore, the factors affecting potential energy of a body are mass, acceleration due to gravity, and height above the ground.
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A 12.0 kg box is being pulled along level ground at constant velocity by a horizontal force of 38.0 N. What is the coefficient of kinetic friction between the box and the floor?
The coefficient of kinetic friction between the box and the floor is 0.323.
By Newton's Law of Motion we understand that an object is at equilibrium if and only if it is at rest or it is moving at constant velocity. If a horizontal force is applied on the box and it is moving, then a force with equal magnitude and opposed to that force must exists, which corresponds to the kinetic friction. Let suppose that the box is moving on a horizontal ground.
The equation of equilibrium for the box is described below:
[tex]\Sigma F = P - \mu_{k}\cdot m\cdot g = 0[/tex] (1)
Where:
[tex]P[/tex] - External force, in newtons.[tex]\mu_{k}[/tex] - Kinetic coefficient of friction, no unit.[tex]m[/tex] - Mass, in kilograms.[tex]g[/tex] - Gravitational constant, in meters per square second.An expression for the kinetic coefficient of friction is derived by clearing the variable in (1):
[tex]\mu_{k} = \frac{P}{m\cdot g}[/tex] (2)
If we know that [tex]P = 38\,N[/tex], [tex]m = 12\,kg[/tex] and [tex]g = 9.807\,\frac{m}{s^{2}}[/tex], then the kinetic coefficient of friction is:
[tex]\mu_{k} = \frac{38\,N}{(12\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}[/tex]
[tex]\mu_{k} = 0.323[/tex]
The coefficient of kinetic friction between the box and the floor is 0.323.
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What changes when unbalanced forces are
applied to a moving bike along the direction
it is moving?
What type of motion is illustrated in the diagram below?
A. Oscillating motion faster than the speed of sound.
B. Oscillating motion slower than the speed of sound.
C. Circular motion faster than the speed of sound.
D. Circular motion slower than the speed of sound.
Answer:
Explanation:
C
Select all that are correct.
3. According to Newtons 1st law, which of the following would be true?
f. An object at rest will stay at rest.
g. An object in motion will stay in motion.
h. An object in motion or at rest will have a net force of zero.
i. Acceleration will be zero for object showing Newton’s 1st law.
j. Acceleration goes in the opposite direction of the net force.
4. Inertia is
a. A body's resistance to motion change.
B. The same as weight
C. The same as mass.
D. Is associated with the first law of motion
5. Newton's 2nd law must use (F= ma)
a. The friction force
b. The net force
C. The applied force
d. The normal force.
Answer:
f and g are correct
Explanation:
Answer:
3) F
4) A
5) D
Explanation:
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Assuming the system is in equilibrium, calculate the missing distance d
Answer:
d=3.4m
Explanation:
From principle of equilibrium,
TOTAL C.WISE MOMENTS = TOTAL A.C.WISE
10N×d = 2N ×2m + 6N×5m
10Nd =4Nm+ 30Nm
10Nd=34Nm
10N 10N
d=3.4m
The system is in equilibrium, calculate the missing distance d=3.4 m.
What is Displacement?Displacement is defined as the change in position of an object. It is a vector quantity and has a direction and magnitude.
From principle of equilibrium,
TOTAL C.WISE MOMENTS = TOTAL A.C.WISE
10 N×d = 2 N ×2 m + 6 N×5 m
10 Nd = 4 N m+ 30 N m
10 Nd = 34 N m
d = 3.4 m
The system is in equilibrium, calculate the missing distance d=3.4 m.
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What role does the battery play in this circuit design? A) The battery works as the system's wires.
B) The battery is the electrical power supply.
C) The battery is the circuit's main conductor.
D) The battery works as the system's electrical switch.
Answer:
B
Explanation:
i got it right on the usatestprep
what is biosphere hydrosphere and atmosphere
Answer:
Biosphere are the regions of the surface, atmosphere, and hydrosphere of the earth.
Hydrosphere is when all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
Atmosphere is the envelope of gases surrounding the earth or another planet.
Explanation:
Hope this helps you out !!!
A 56 kg diver runs and dives from the edge of a cliff into the water which is located 4.0 m below. If she is moving at 8.0 m/s the instant she leaves the cliff, determine the following.
Her gravitational potential energy relative to the water surface when she leaves the cliff
Her kinetic energy when she leaves the cliff
Her total mechanical energy relative to the water surface when she leaves the cliff
Her total mechanical energy relative to the water surface just before she enters the water.
The speed at which she enters the water.
Answer:
1) 2197.44 J
2) 0 J
3) 2197.44 J = Constant
4) 2197.44 J
5) Approximately 8.86 m/s
Explanation:
The given parameters are;
The mass of the diver, m = 56 kg
The height of the cliff, h = 4.0 m
The speed with which the diver is moving, vₓ = 8.0 m/s
The gravitational potential energy = Mass, m × Height of the cliff, h × Acceleration due to gravity, g
1) Her gravitational potential energy = 56 × 4.0 × 9.81 = 2197.44 J
2) The kinetic energy = 1/2·m·u²
Where;
u = Her initial velocity = 0 when she just leaves the cliff
Therefore;
Her kinetic energy when she just leaves the cliff = 1/2 × 56 × 0² = 0 J
3) The total mechanical energy = Kinetic energy + Potential energy
The total mechanical energy is constant
Her total mechanical energy relative to the water surface when she leaves the cliff = Her gravitational potential energy = 2197.44 J = Constant
4) Her total mechanical energy relative to the water surface just before she enters the water = 2197.44 J
5) The speed with which she enters the water, v, is given from, v² = u² + 2·g·h
Where;
u = The initial velocity at the top of the cliff before she jumps= 0 m/s
∴ v² = 0² + 2 × 9.81 × 4 = 78.48
v = √78.48 ≈ 8.86 m/s
The speed with which she enters the water, v ≈ 8.86 m/s
1) Her gravitational potential energy relative to the water surface when she leaves the cliff is; GPE(leaves cliff) = 2195.2 J
2) Her kinetic energy when she leaves the cliff is; KE = 0J
3) Her total mechanical energy relative to the water surface when she leaves the cliff is; ME_total = 2195.2 J
4) Her total mechanical energy relative to the water surface just before she enters the water is; ME_total = 2195.2 J
5) The speed at which she enters the water is; v = 8.85 m/s
We are given;
Mass of the diver; m = 56 kg
Height of the cliff; h = 4 m
Speed at which she is moving; vₓ = 8 m/s
1) Formula for gravitational potential energy is;
GPE = mgh
where;
m is mass
g is acceleration due to gravity
h is height
Thus;
GPE = 56 × 4 × 9.8
GPE(leaves cliff) = 2195.2 J
2) The formula for kinetic energy when she leaves the cliff is;
KE = ¹/₂mu²
Where;
m is mass
u = initial velocity = 0 m/s
Thus;
KE = ¹/₂ × 56 × 0²
KE(leaves cliff) = 0 J
3) The total mechanical energy relative to the water surface when she leaves the cliffis;
ME_total = GPE(leaves cliff) + KE(leaves cliff)
Thus;
ME_total = 2195.2 + 0
ME_total = 2195.2 J
4) Her total mechanical energy relative to the water surface just before she enters the water is same as that when she leaves the cliff = 2195.2 J
5) The speed with which she enters the water, v, is gotten from newtons third equation of motion;
v² = u² + 2gh
Thus;
v² = 0² + (2 × 9.8 × 4)
v² = 78.4
v = √78.4
v = 8.85 m/s
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The mantle is very hot and is both semi-liquid and semi-solid
Answer:
incorrect, the mantle is solid
Explanation:
Which statement best describes the difference between acceleration and velocity?
A. acceleration only shows a change in direction, but velocity shows a change in speed.
B .acceleration depends on direction, but velocity does not.
C. acceleration is a change in velocity, but velocity is speed in a given direction.
D. acceleration only shows change in speed, but velocity only shows a change in direction.
