The energy to the position is known as potential energy. The maximum potential energy is in case 2. Hence the maximum height will be in case 2.
What is kinetic energy?The energy of the body by the virtue of its motion is known as the kinetic energy of the body. It is defined as the product of half of mass and square of the velocity.
According to the law of conservation of energy, the total energy is defined as the sum of kinetic energy and potential energy.
Mechanical energy = kinetic energy+potential energy
Potential Energy = Mechanical Energy - Kinetic Energy
As a result, if an object has greater potential energy, it will have a higher height.
The formula for the kinetic energy is given by;
The potential energy for the different cases will be;
Case-1;
[tex]\rm KE_1=\frac{1}{2}mv^2 \\\\ \rm KE_1=\frac{1}{2}\times2.4(7)^2 \\\\ \rm KE_1=58.8 J[/tex]
[tex]\rm PE_1 = 32 - 58.8 = -26.8 J[/tex]
Case-2;
[tex]\rm KE_2=\frac{1}{2}mv^2 \\\\ \rm KE_2=\frac{1}{2}\times2.4(2)^2 \\\\ \rm KE_2=4.8 J[/tex]
[tex]\rm PE_2 = 34 - 4.8 = 29.2 J[/tex]
Case-3;
[tex]\rm KE_3=\frac{1}{2}mv^2 \\\\ \rm KE_3=\frac{1}{2}\times2.4(6)^2 \\\\ \rm KE_2=43.2 J[/tex]
[tex]\rm PE = 35 - 43.2 = -8.2 J[/tex]
Case-4;
[tex]\rm KE_3=\frac{1}{2}mv^2 \\\\ \rm KE_3=\frac{1}{2}\times2.4(3)^2 \\\\ \rm KE_2=10.8 J[/tex]
[tex]\rm PE_2 = 31 - 10.8 = 20.2 J[/tex]
The maximum potential energy is in case 2. Hence the maximum height will be in case 2.
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Answer:
B:
the SECOND trial
Explanation:
Science | Heat
Analyze the given examples, then, write C if it is convection and NC if it is not.
I'd appreciate the help :))!
The examples of heat transfer by convection are the air being heated in a hot-air balloon, Sea breeze and land, Air conditioner and Hot airflow in summer.
What is heat transfer by convection?
Heat transfer by convection is the heat flow from one place to another due to the movement of fluid.
Examples of heat transfer by convection include the followings;
The air being heated in a hot-air balloon: the heated hot air rises while cold surrounding air which is high dense falls beneath the hot air.Sea breeze and land: the cold sea breeze replacing hot air from the land during day or the land breeze cooling the sea at night.Air conditioner: the cold air replacing the hot airHot airflow in summer: the movement of the cold towards the pole and the displacement of the hot air.Learn more about heat transfer by convection here: https://brainly.com/question/12072129
whats carbond6y12 explain!!
Answer: More info please
Explanation:
good morning! can someone please answer this, ill give you brainliest and you will earn 50 points.
How demands became the obstacles ?
The demands forces the human to go to different places in order to fulfill their requirements .So they have to shift their homes to different places .Pick all of the statements that are correct
Natural resource supplies depend solely on physical availability
Demand for natural resources have influenced human settlement patterns ✓
More the resources,more the fraction of the population living near that areaClean air, clean water, and food are examples of natural resources
we get air from the atmosphere, water from hydrosphere and food from the lithosphere and all of them are natural resourcesA motor bike is sitting at the start line. It reaches a speed of 90m/s in 10 seconds. Calculate its acceleration.
Answer:
9m/s^2
Explanation:
a= dv/dt, 90m/s-0m/s/10s-0s=9m/s^2
State Coulomb’s Law equation and give the meaning of every variable and the units.
The Coulomb's law equation is F = Kq₁q₂/r².
What is Coulomb's law?This is the law that relates the product of two charges to the square of distance between the two charges.
Coulomb's law states that the force of attraction or repulsion is directly proportional to the product of the charges and inversely proportional to the square of distance between the charges.
Coulombs' law equationThe equation of Coulomb's law is given as;
F = Kq₁q₂/r²
where;
K is Coulomb's constant, Nm²/C²q₁ is the first charge, Cq₂ is the second charge, C)r is the distance between the charges, mThus, the Coulomb's law equation is F = Kq₁q₂/r².
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help.
Help help help help
Answer:
B. 1.750 x 10^3
Explanation:
1/2 * 35 * 10^2
HEYY! Please help!
Turn this Algebraic expression into a Verbal expression!
2(3j+5+8j)
Thank you! <33
Answer:
22J+10
Explanation:
that is it in verbal expression
A 0. 5 kg arrow was shot at a target. The arrow accelerated at 200 m/s2. What was
the net force on the arrow to the nearest newton?
Answer:
100 newtons
Explanation:
F= ma
describe ohm law with examples
Here is your Answer:-
Ohm's Law
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship: I=V/R, where I is the current through the conductor in units of amperes, V is the voltage measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.
Conventional Domestic Fans.
Electric Heaters. The electric heaters are the common appliances used in winters throughout the world.
Electric Kettles and Irons. The electric kettle and irons have a lot of resistors in them.
Design of Electric Devices.
What do all scientific areas of study have in common?
Answer:
They examine theories in a systematic manner.
Explanation:
what is the effect of altitude on atmospheric pressure
Answer:
Pressure decreases with increasing altitude.
Explanation:
The atmospheric pressure is maximum on the surface of the earth. When we go to high altitude then the atmospheric pressure decreases .At high altitude the atmospheric pressure becomes much less than our blood pressure.
How does the interference of sound waves make sounds louder of softer?
Answer:
Explanation:
Lower pitch Normal pitch Sound Interference If you walk through a room with stereo speakers at each end, the sound might seem louder in some places and softer in others. The waves from each speaker interact with one another. Interference occurs when waves that overlap combine, forming a new wave.
The magnitude of the electric field between two parallel charged plates is 200. An electron moves to the negative plate 5. 0 cm away. Two horizontal parallel plates have equally spaced vectors going from the top plate to the bottom plate labeled E and the plates are spaced a distance d apart. There is a negatively charged sphere is near the positively charged plate and a second is directly below and near the negatively charged plate. The two charged particles are connected by a dashed line vector point from the top to the bottom one. Find the electric potential difference and the work. Recall the charge of an electron is 1. 602 × 10–19 C. ΔV = V Round work to one decimal. W = × 10–18 J.
The potential difference between the two ends of the circuit is the electric potential difference. The electric potential difference and the work will be 10V and 1.6 x 10^-18 J respectively.
What is an electric field?An electric field is an electric property that is connected with any location in space where a charge exists in any form. The electric force per unit charge is another term for an electric field.
The given data in the problem is given by;
E is the electric field = (200 N/C)
d is the distance = 5.0 cm.=0.05 m
Q is the charge of electrons= 1.602 x 10^-19 C
The formula for electric potential is given by;
[tex]\rm V=Ed[/tex]
[tex]\rm V=Ed \\\\ \rm V=200 \times 0.05 \\\\ \rm V= 10 \frac{Nm}{C} = 10 \frac{J}{C} = 10 V.[/tex]
The work is defined as the product of the potential difference and charge of an electron.
[tex]\rm W= 10 \times 1.602 x 10^{-19} \\\\\ \rm W= 1.6 x 10^{-18 }J[/tex]
Hence the electric potential difference and the work will be 10V and 1.6 x 10^-18 J respectively.
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first part is 10 second part is 1.6
A plane makes a complete circle with a radius of
3622 m in 2.10 min. What is the speed of the plane?
Answer:
10
Explanation:
_____the form of energy which enables us to see any object is.
Answer:
Light
Explanation:
Light is the form of energy which enables us to see any object.
Coulomb’s law is stated mathematically as
F
=
k
q
1
q
2
r
2
where F represents electrical force, k is the electrostatic constant, q represents strength of an electrical charge and r represents the distance between the centers of the charges.
• Explain the relationship between force and strength of electrical charge and the relationship between force and distance, based on this equation.
• Determine how doubling the strength of both charges at the same time affects the force between them.
Relationship between force and strength of electrical charge directly proportional whereas the relationship between force and distance is inversely proportional
Relationship between force, charges and distanceThe relationship between force and strength of electrical charge directly proportional to each other which means if one increases the other will automatically increases whereas the relationship between force and distance is inversely proportional which means that if one increases the other will decrease.
Doubling the strength of both charges at the same time affects the force between them because both charges are directly proportional to its force so we can conclude that relationship between force and strength of electrical charge directly proportional whereas the relationship between force and distance is inversely proportional.
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Which type of energy is stored in chemical compounds and released in chemical reactions?
potential
kinetic
chemical
electrical
Answer:
Potential, tell me if that's wrong, and sorry if its wrong.
Explanation:
pleaseeee help me please t
Answer:
The current will remain unchanged:
If the switches are open then 18 Ω is in parallel with 18 Ω
This gives an equivalent resistance of 9 Ω for the circuit
R = R1 R2 / (R1 + R2) = (18 * 18)/ 36 = 9 Ω
Now suppose that switches are closed, then
each parallel combination of 6 Ω is in series with the other two
One combination = (6 * 6) / (6 + 6) = 3 Ω
There will be 3 of these parallel combinations in series providing a total resistance of 9 Ω which is the same as before so i is unchanged
A common activity like cooking a meal can use many natural _________.
A common activity like cooking a meal can use many natural Ingredients
Ingredients
Ingredients are substances combined to make a particular mixture such as a meal. most of the ingredients used for the preparation of a meal are sourced naturally.
In cooking different recipes of a meal the use of specific ingredients for each recipe differentiates the recipes.
Therefore we can conclude that cooking a meal requires the use of natural ingredients.
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The SI unit of pressure is _______.
ANSWER:
pascal (pa) or newton per square metre
If a 3 kg block rests on a rough horizontal table and experienced a 2 N force of static friction then what is the coefficient of static friction between the block and the table
The coefficient of static friction of the block is 0.068.
What is static friction?This is the force between two bodies in contact and tends to oppose their motion. It is also the force that keeps two bodies at rest
To calculate the coefficient of static friction, we use the formula below.
Formula:
F = mgμ............. Equation 1Where:
F = Horizontal forcem = mass of the blockg = acceleration due to gravityμ = coefficient of static friction.Make μ the subject of the equation
μ = F/mg.............. Equation 2From the question,
Given:
m = 3 kgg = 9.8 m/s²F = 2 NSubstitute these values into equation 2
μ = 2/(3×9.8)μ = 2/29.4μ = 0.068.Hence, The coefficient of static friction of the block is 0.068.
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2.70 ft is the same as how many cm
Answer:
82.296cm
Explanation:
2.7 * 30.48cm/1ft= 82.296cm
A 23.3 kg crate is pushed with a force of 944 N for 36.0 seconds, moving the crate a distance of 12.4 m. How much power was used
Explanation:
[tex]p = \frac{f \times s}{t} [/tex]
power = Force × distance /time
power = 944N × 12.4m/36secs
power = (944×12.4/36)Nms—¹
power = 390.2Nms—¹ or 390.2Watts or 390.2Js—¹
a student pushes a shopping cart filled with groceries. the cart has a mass car of 12 kilograms (kg). The student pushes the cart with a force of 15 newtons (N). Assuming the ground is frictionless, how fast will the cart accelerate until the student stops applying force?
Answer:
the cart will have an acceleration of 1,25 m.s‐²
A circuit contains a 1. 5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current
7. A 500 g ball is about to roll off the edge of a 1. 5 m tall table. What is its current gravitational potential energy?
Answer: 7.35 Joules (7.35J)
Explanation:
Gravitational potential energy is defined to be the "stored" energy in the gravitational field. Since the force of gravity is conservative, the reference point for our zero potential does not matter. For simplicity, the zero reference point will be the floor which the table is sitting on. Gravitational potential energy is denoted as a capital 'U' and is defined to be:
[tex]U=mgh[/tex]
The 'm' is the mass, the 'g' is the acceleration due to the gravitational field, and the 'h' is the vertical height from the reference point. Plugging in the given values, you get:
[tex]U=(0.5kg)(9.8m/s^2)(1.5m)[/tex]
[tex]U=7.35J[/tex]
The SI units for mass is always the kilogram. So, you need to convert the grams into kilograms using the conversion factor of 1000g = 1kg.
A jet is flying at a velocity of 30m/s. It speeds up to 150m/s in 40s.
Calculate its acceleration.
Answer:
acceleration= Final velocity - initial velocity/time taken
or u can put the formula by their symbols
a= V-u/t
a=150m/s - 30m/s= 120
120/40s= 3s
so the answer is 3s.
A basketball player uses a bat to hit a 0.145- kilogram stationary baseball with a force of 18,436 Newton's. What is the force, in Newton's, on the player's bat?
A. 2,673 newtons
B. 9,218 newtons
C. 18, 436 newtons
D. 36, 872 newtons
Answer: C
Explanation:
Newton's Third Law of motion states that any action causes an equal and opposite reaction. This is the fundamental requirement for the conservation of classical momentum.
The force, in Newton's, on the player's bat is 18, 436 newtons. The correct option is C.
What is force?The word "force" has a specific meaning in science. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.
Although modest, the gravitational force has a relatively wide field of effect. Maturity is always appealing. Since mass is its source, it operates between any two particles of matter in the universe.
Every action results in a corresponding and opposing response, according to Newton's Third Law of Motion. The basic prerequisite for the conservation of classical momentum is this.
Therefore, the correct option is C. 18, 436 newtons.
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A 17,250 kg rocket is pushed with a thrust of 7236904 N. What is the acceleration of the rocket?.
The acceleration of the rocket of mass 17250 kg when pushed with a thrust of 7236904 N is 409.73 m/s².
What is acceleration?Acceleration can be defined as the rate of change of velocity
To calculate the acceleration of the rocket, we use the formula below, And this formula is obtained from newton's second law of motion.
Formula:
ma = T-mg.............. Equation 1Where:
m = mass of the rocketa = acceleration of the rocketT = Thrust on the rocketg = acceleration due to gravity of the rocket.Make a the subject of the equation
a = (T-mg)/m............. Equation 2From the question,
Given:
T = 7236904 Nm = 17250 kgg = 9.8 m/s²Substitute these values into equation 2
a = [7236904-(17250×9.8)]/17250a = (7236904-169050)/17250a = 7067854/17250a = 409.73 m/s²Hence, The acceleration of the rocket is 409.73 m/s².
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help pls pls pls pls pls
The weight in any case is the mass times the acceleration due to gravity.
So;
[tex]Weight = 65.0kg * 1.62m/s^2=105.3N[/tex]
Hope that helps!