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A 0.18 kg plastic ball moves with a velocity of 0.39 m/s. It collides with a second plastic ball of mass 0.016 kg, which is moving along the same line at a speed of 0.05 m/s. After the collision, both balls continue moving in the same, original direction. The speed of the 0.016 kg ball is 0.26 m/s. What is the new velocity of the 0.18 kg ball?
Answers
The new velocity of the 0.18 kg ball, given that it's initial velocity was 0.39 m/s is 0.37 m/s
How do I determine the velocity of the 0.18 kg ball after collision?The following data were obtained from the question:
Mass of first ball (m₁) = 0.18 KgInitial velocity of first ball (u₁) = 0.39 m/sMass of second ball (m₂) = 0.016 KgInitial velocity of second ball (u₂) = 0.05 m/sNew velocity of second (v₂) = 0.26 m/sNew velocity of first ball (v₁) = ?The new velocity of the first ball (0.18 Kg) can be obtained as follow:
Momentum before = Momentum after
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
(0.18 × 0.39) + (0.016 × 0.05) = (0.18 × v₁) + (0.016 × 0.26)
0.0702 + 0.0008 = 0.18v₁ + 0.00416
Collect like terms
0.18v₁ = 0.0702 + 0.0008 - 0.00416
0.18v₁ = 0.06684
Divide both sides by 0.18
v₁ = 0.06684 / 0.18
v₁ = 0.37 m/s
Thus, the new velocity of the 0.18 Kg ball is 0.37 m/s
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Related Questions
what causes things to attract to a balloon
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Answer:
friction
Explanation:
when things like hair and the balloon run they loose some electrons to the other this makes onne object positive and negative causing them to attract
A wave has a frequency of 450 Hz and a wavelength of 0.52 m. What is the speed of the wave?
Answers
Answer:
Explanation:
ave speed is always (frequency) x (wavelength)
Speed = (450 /sec) x (0.52 m)
= 234 m/sec .
the outdoor temperature is forecast to be colder than the design capacity of the heating system. what could you do to keep the work space as warm as possible?
Answers
Here are a few things you could do to keep the workspace as warm as possible:
Use additional heating sources: If the heating system is not able to keep the workspace warm enough, you can use additional heating sources such as space heaters, portable heaters, or heat lamps to supplement the heating system.
Insulate the workspace: Insulating the walls, windows, and doors of the workspace can help to prevent heat loss and keep the workspace warm. You can use insulation materials such as foam, fiberglass, or cellulose.
Seal air leaks: Air leaks around windows and doors can cause heat loss, so it's important to seal them. You can use weatherstripping or caulking to seal the gaps around windows and doors.
Adjust the thermostat: If the heating system has a programmable thermostat, you can adjust it to raise the temperature during the colder forecasted period to compensate for the temperature drop.
Wear warmer clothing: Encourage employees to wear warmer clothing such as sweaters or jackets to keep them comfortable while working.
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if 36 columb of charge pass through a wire in 45 what current is it carrying ?
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Quantum Physics
Please answer correctly and step-by-step. Thank
you...
a )The electron of a hydrogen atom is in an eigenvalue of energy with quantum numbers n = 4,1 = 1, m = 1. List the eigenstates of the electron energy (n', l', m') to which the electron can spontaneous
Answers
Quantum physics is a branch of physics that focuses on the very small scale of matter, such as atoms and subatomic particles.
It is a fundamental field of study that aims to understand the behavior of these particles and the underlying principles that govern them.
The hydrogen atom consists of an electron that orbits around a positively charged nucleus. The electron's energy is quantized, meaning that it can only exist at certain energy levels that are determined by its quantum numbers.
The three quantum numbers that describe the electron's state are n, l, and m, which stand for the principal quantum number, the azimuthal quantum number, and the magnetic quantum number, respectively.
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The components of a vector are:
A:Each equal to half the magnitude of the vector.
B:Independent of the orientation of the vector.
C:Perpendicular
D:None of the previous
Answers
The component of a vector are perpendicular
(b) if one micrometeorite (a sphere with a diameter of 1.30 10-6 m) strikes each square meter of the moon each second, how many years would it take to cover the moon to a depth of 1.20 m? (hint: consider a box on the moon 1.00 m on a side and 1.20 m deep, and find how long it will take to fill the box.)
Answers
The time required to cover the Moon to a depth of 1.20 meters with micrometeorites.
To find out how long it would take to cover the Moon to a depth of 1.20 meters with micrometeorites, we can calculate the volume of the Moon and then divide it by the volume of one micrometeorite. Let's break down the calculation step by step:
Calculate the volume of the Moon:
The average radius of the Moon is approximately 1.737 ×10⁶ meters. Using the formula for the volume of a sphere, V = (4÷3)πr³, we can calculate the volume of the Moon.
\(V_{moon}\) = (4÷3)π(1.737 × 10⁶)³
Calculate the volume of one micrometeorite:
The diameter of the micrometeorite is given as 1.30 ×10⁽⁻⁶⁾ meters, which means the radius is half of that.
\(r_{meteorite}\) = (1.30 × 10⁽⁻⁶⁾)÷2
Using the formula for the volume of a sphere, V = (4÷3)πr₃, we can calculate the volume of one micrometeorite.
\(V_{meteorite}\) = (4÷3)π((1.30 × 10⁽⁻⁶⁾)÷2)³
Calculate the number of micrometeorites needed to fill the Moon:
To find the number of micrometeorites required to fill the Moon, we divide the volume of the Moon by the volume of one micrometeorite.
\(N_{meteorites}\) = \(V_{moon}\) ÷ \(V_{meteorite}\)
Calculate the time to fill the Moon:
Since one micrometeorite strikes each square meter of the Moon each second, we can equate the number of micrometeorites needed to fill the Moon to the number of seconds it would take.
Time = \(N_{meteorites}\) ÷ (1 m²/s)
Convert seconds to years:
Finally, we convert the time in seconds to years by dividing by the number of seconds in a year (assuming 365.25 days in a year and 24 hours in a day).
\(Time_{years}\) = Time ÷ (365.25 days/year × 24 hours/day × 3600 seconds/hour)
Performing these calculations will give us the time required to cover the Moon to a depth of 1.20 meters with micrometeorites.
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A boy pulls a bag of baseball bats across a ball field toward the parking lot. The bag of bats has a mass of 6. 80 kg, and the boy exerts a horizontal force of 24. 0 n on the bag. As a result, the bag accelerates from rest to a speed of 1. 12 m>s in a distance of 5. 25 m. What is the coefficient of kinetic friction between the bag and the ground?
Answers
The coefficient of kinetic friction between the bag and the ground is found to be 0.0251. It represents the ratio of the frictional force to the normal force acting between them.
In this question, a boy pulls a bag of baseball bats across a ball field toward the parking lot. The bag of bats has a mass of 6.80 kg, and the boy exerts a horizontal force of 24.0 N on the bag. As a result, the bag accelerates from rest to a speed of 1.12 m/s at a distance of 5.25 m. We have to find the coefficient of kinetic friction between the bag and the ground.The formula used to find the coefficient of kinetic friction is given as,μk= (a/g) + μs (1 - a/g), Where, μk = coefficient of kinetic friction, a = acceleration of the body, g = acceleration due to gravity (9.8 m/s2), μs = coefficient of static frictionGiven, Mass of the bag (m) = 6.80 kg, Force applied (F) = 24.0 N, Initial velocity (u) = 0 m/s, Final velocity (v) = 1.12 m/s, Distance covered (s) = 5.25 m, Acceleration (a) = (v2 - u2) / 2s. Substituting the given values, a = (1.12² - 0²) / (2 * 5.25)m/s²a = 0.247m/s². Now, we will use the formula of the coefficient of kinetic friction. μk= (a/g) + μs (1 - a/g)Let's assume the value of μs to be zero.μk= (a/g) + 0 (1 - a/g) = μk= (a/g) + 0 (1 - a/g) = μk = (a/g) = μk = (0.247m/s²) / (9.8m/s²) = μk= 0.0251. Therefore, the coefficient of kinetic friction between the bag and the ground is 0.0251. In order to move the bag, the boy had to overcome friction. From the given values, we calculated the acceleration of the bag, which was found to be 0.247 m/s². Using this acceleration, we can find the coefficient of kinetic friction, which came out to be 0.0251. This value represents the ratio of the frictional force to the normal force acting between the bag and the ground.For more questions on kinetic friction
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a fine metal foil separates one end of two pieces of optically flat glass, as in (figure 1). when light of wavelength 710 nm is incident normally, 24 dark lines are observed (with one at each end).
Answers
Based on the information provided, it seems that the setup described is an example of a Fabry-Perot interferometer. The fine metal foil serves as a partially reflective surface that reflects some of the incident light back towards the glass plates, where it can interfere with the incident light that passes through the foil.
The result of this interference is the observation of dark lines in the transmitted light, with one at each end of the glass plates. The number of dark lines observed is related to the wavelength of the incident light and the distance between the plates, according to the equation:
N = 2d/λ
where N is the number of dark lines observed, d is the distance between the plates, and λ is the wavelength of the incident light.
In this case, with a wavelength of 710 nm and 24 dark lines observed, we can solve for the distance between the plates:
d = Nλ/2 = 24(710 nm)/2 = 8520 nm
So the distance between the plates is approximately 8.52 micrometers.
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When a closed can is heated, the pressure inside it increases. This happens because
Answers
Answer:
the heat is growing the particles bigger
Explanation:
when a sine wave is used to represent a sound wave, the crest corresponds to:
Answers
When a sine wave is used to represent a sound wave, the crest corresponds to the maximum positive displacement from the equilibrium position.
In a sine wave, the crest refers to the highest point of the wave, while the trough refers to the lowest point of the wave. When a sine wave is used to represent a sound wave, the crest corresponds to the maximum positive displacement from the equilibrium position.
This means that the crest of a sound wave corresponds to the point of maximum compression in a sound wave. As the sound wave moves through a medium, it creates areas of compression and rarefaction. The crest of the sound wave corresponds to the point of maximum compression, where the particles of the medium are closest together.
The trough of the sound wave corresponds to the point of maximum rarefaction, where the particles of the medium are farthest apart. Together, the crest and trough of a sound wave represent the complete cycle of the wave, which corresponds to one complete vibration of the source.
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Do ocean currents affect aquatic life? What do you think and why?
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Answer: By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life.
Explanation: Plzz mark me as brainliest !!
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane flies 130 m above the glacier at a speed of 160 m/s. How far short of the target should it drop the package?
Answers
The plane flies at speed of 160m/s should drop the package when it reaches at a distance of 824m.
How does Newton's second law relate to gravity?A dropped object travels quickly in the direction of the earth's center. Newton's second law states that the net force applied on an object determines its acceleration. If air resistance is small, the gravitational force, which is also known as an object's weight (w), acts as the net force on any falling object.
What other name does gravity's acceleration go by?Free-fall acceleration seems to be another name for gravitational acceleration. Gravitational fields established by masses pull other masses approach them.
\(h = ut + 1/2 gt^2 ; u=0130 = 1/2 \times 9.8 \times t^2t= 5.15sec\)
The packet travel with the time period of 5.15sec
The distance = v x t
160m/s x 5.15s = 824m
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if a 1200kg car travels 20 m/s and slows down for a stop, what is its momentum?
Answers
Answer:
24000kgm/s
Explanation:
Given parameters:
Mass of car = 1200kg
Velocity = 20m/s
Unknown:
Momentum = ?
Solution:
Momentum is the amount of motion a body possesses.
Momentum = mass x velocity
Now insert the parameters and solve;
Momentum = 1200 x 20 = 24000kgm/s
a car travelling along a straight road has kinetic energy of 180 kj. the brakes are applied, and it is brought to rest over a distance of 60 m. what is the average force of the car breaks?
Answers
If a car having 180 kJ kinetic energy is brought to rest over a 60m distance on applying breaks, then the average force of the car breaks = 3000N
Let the braking force be = F
We assume that the car is moving in a horizontal direction
Thus, Work done against the braking force = loss in kinetic energy
We also know that energy = force * displacement
Therefore, braking force x braking distance= loss in kinetic energy (1)
Given in the problem, breaking distance = 60m
The kinetic energy of the car = 180 kJ
From equation (1)
Braking force = loss in kinetic energy/braking distance = (180x1000 /60) J/m= 3000 N = 3 kN
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Does horizontal motion have any formula?
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in many compounds, atoms of main-group elements form ions so that the number in the outermost energy levels of each ion is
Answers
If a car, with an initial velocity of 15 m/s, accelerates at a rate of 5 m/s^2 for 4 seconds, what will its final velocity be?
Answers
Answer:
35 m/s
Explanation:
vf = vo + at
vf = 15 + 5(4) = 35 m/s
A bomber is flying at a height of 9 km at 800 km/h. How far in front of the target should he drop his bombs?
Answers
Answer:
The distance in front of the target is 9.524 km
Explanation:
Given;
height of the bomber above the ground, h = 9 km = 9000 m
velocity of the bomber, v = 800 km/h = 222.22 m/s
The time the bomb will get to the target is given by;
\(t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2*9000}{9.8} }\\\\ t = 42.857 \ s\)
The lead distance or distance in front of the target is given by;
x = vt
x = (222.22 m/s) x (42.857 s)
x = 9523.68 m
x = 9.524 km
Therefore, the distance in front of the target is 9.524 km
In front of the target, the distance will be "9.524 km".
Distance and HeightAccording to the question,
Bomber's height, h = 9 km or,
= 9000 m
Bomber's velocity, v = 800 km/h or,
= 222.22 m/s
Now,
The time will be:
→ t = \(\sqrt{\frac{2h}{g} }\)
By substituting the values, we get
= \(\sqrt{\frac{2\times 9000}{9.8} }\)
= \(\sqrt{\frac{18000}{9.8} }\)
= 42.857 s
hence,
The lead distance will be:
→ x = vt
By putting the values,
= 222.22 × 42.857
= 9523.68 or,
= 9.524 km
Thus the above answer is correct.
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a heat engine gives out 400J of heat energy as the useful work.calculate the energy given to it as input if its efficiency is 40%?
Answers
Answer:
E(efficiency) = E(out) / E(in)
.4 = 400 J / E (in)
E (in) = 1000 J
Heat input : 1000J
What is efficiency of a heat engine ?
The efficiency of a heat engine is defined as the ratio of work done by the heat engine absorbed per cycle.
Given : work output = 400 J
Efficiency = 40 % = 0.4
heat input = ?
Efficiency = work output / heat input
0.4 = 400/heat input
heat input : 1000J
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A student has 2 identical metal cubes.Each with a volume of 20 cm .The first cube has a mass of 80 g and the second cube has a mass of 120 g .Which cube has the higher density
Answers
which two technologies use waves to determine the location and velocity of objects
Lenses
X Rays
Sonar
Radar
Answers
Answer: sonar and radar
Explanation:
Picture
a proton is placed at point a. the proton is then removed and an electron is placed at point b. what is the direction of the electric force ? give angle relative to x with ccw as positive. what is the direction of the electric force ? what is true of the magnitude of the two forces?
Answers
When a proton is removed from point A and an electron is placed at point B, the direction of the electric force will be from point B towards point A. The angle of this force relative to the x-axis would be 180 degrees, with counterclockwise as positive.
As the electron and proton have equal and opposite charges, the magnitude of the force between them will be the same as the magnitude of the force between the proton and the electron.
The magnitude of the force between the proton and electron can be determined by Coulomb's law, which states that the force is proportional to the product of the charges and inversely proportional to the square of the distance between them.
In other words, the magnitude of the two forces is equal, but the direction of the two forces is opposite.
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A small car and a large bus have the same kinetic energy, which is traveling faster?
a.) car
c.) same speed?
b.) bus
Answers
it is the same speed
Here’s why, As you know kinetic energy is directly proportional to mass and velocity of the body. In case of a small car and a big bus moving at the same speed the bus would have more mass then a car. This means the bus has more kinetic energy.
Marlene loves astronomy and has enrolled in an online course to learn more about space. The course gives Marlene access to a digital classroom.
What does this enable her to do? Check all that apply.
discuss the solar system with others in the class
attend a field trip to a planetarium at a local college
upload an amateur video of a shooting star
make a presentation about her favorite planet
take notes, tests, and quizzes
watch instructional videos made by a teacher
Answers
Answer:
A E and F are the correct answers
Explanation:
Answer:
A E F are correct
Explanation:
pneumatic tools such as nail and staple guns are powered by _______________.
Answers
Pneumatic tools, such as nail and staple guns, are powered by compressed air. The compressed air is stored in a tank or generated by a compressor, which is then used to power the tool.
When the trigger is pulled, the compressed air is released, causing a piston to move and drive the staple or nail into the material. Pneumatic tools are popular because they are lightweight and efficient, allowing for quick and easy fastening of materials. In the case of staple guns, they use a special type of staple that is designed to be driven into the material with precision and strength, making them ideal for a wide range of applications.
Pneumatic tools, such as nail and staple guns, are powered by compressed air. These devices use air pressure to drive staples or nails into various materials. The compressed air is typically supplied by an air compressor, which generates and stores the required air pressure for the tool to operate efficiently. Pneumatic tools offer increased power and efficiency compared to their manual or electric counterparts, making them a popular choice for many applications.
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Which describe the image formed by a convex mirror? Check all that apply.
virtual
STRE
real
upside down
A
right-side up
larger than the object
smaller than the object
same size as the object
Answers
Answer:
smaller than the object
Explanation:
The rest are incorrect; It has an upright image.
Answer: Smaller Than the object and right-side up
A cylinder of length L has a circular cross section radius R. The Volume of the cylinder is 15.0±0.5 cm3 and the length is 20 ± 0.1 cm. Calculate the radius of the cylinder with its uncertainty.
Answers
The radius of the cylinder with uncertainty is found to be 0.488 ± 0.01 cm. This can be understood by propagation of errors.
Volume of the cylinder, V = 15.0 ± 0.5 cm³
Length of the cylinder, L = 20 ± 0.1 cm.
Circular cross-section radius, r =?
We know, Volume of the cylinder = πr²L
`V=π r²L`
r²= V/(πL)
Taking the square root of both the sides, `r = √(V/(πL))`
Let's calculate the uncertainty of the radius,
`r = √(V/(πL))` = √15/(π×20) = 0.488 cm
`Δ(r)/r = 1/2 × [Δ(V)/V + Δ(L)/L]`
`Δ(r) = r/2 × [Δ(V)/V + Δ(L)/L]`
Substitute the values of V, L, and Δ(V) and Δ(L)
`Δ(r) = r/2 × [0.5/15 + 0.1/20]`=`r/2 × (0.033 + 0.005)`=`r/2 × 0.038`=`0.019r`
Now substitute the value of r,
`Δ(r) = 0.019 × 0.488 = 0.0092 ≈ 0.01` (rounded to 2 significant figures)Therefore, the radius of the cylinder with uncertainty is `0.488 ± 0.01 cm`.
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2. Use delta to wye resistance. transformation to find the total Also, determine the total current. 100 V (+ 2002 N 40 M 1965 120V I₁ 50 3.0 100 92 M- W Io 302 10 N 270 3.Reduce the circuit to a single loop network using source transformation then find lo. N62 $452 N 82 182 4022 3A
Answers
The total resistance in the circuit is 144Ω, and the total current is approximately 0.694A.
To find the total resistance and total current in the given circuit, let's break down the steps:
1. Delta to Wye Transformation:
- Identify the resistors in the delta configuration: 200Ω, 40Ω, and 120Ω.
- Apply the delta to wye transformation to convert the resistors into a wye configuration:
- R₁ = (Rb * Rc) / (Ra + Rb + Rc) = (40 * 120) / (200 + 40 + 120) = 16Ω
- R₂ = (Ra * Rc) / (Ra + Rb + Rc) = (200 * 120) / (200 + 40 + 120) = 96Ω
- R₃ = (Ra * Rb) / (Ra + Rb + Rc) = (200 * 40) / (200 + 40 + 120) = 32Ω
- Replace the delta configuration with the wye configuration using the calculated values: R₁ = 16Ω, R₂ = 96Ω, R₃ = 32Ω.
2. Total Resistance Calculation:
- The total resistance (RT) in the circuit is the sum of the individual resistances:
- RT = R₁ + R₂ + R₃ = 16Ω + 96Ω + 32Ω = 144Ω.
3. Total Current Calculation:
- The total current (I) can be calculated using Ohm's Law: I = V / RT, where V is the voltage across the circuit.
- Given that the voltage (V) is 100V, the total current (I) is: I = 100V / 144Ω = 0.694A.
Therefore, the total resistance in the circuit is 144Ω, and the total current is approximately 0.694A.
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What is an example of gravitational potential to kinetic to electrical current?
Answers
One example of gravitational potential energy being converted to kinetic energy and then to electrical energy is a hydroelectric power plant.
Potential energy is the energy possessed by an object due to its position or configuration in a system. It is a form of energy that is stored within an object, which can be released or converted into other forms of energy when the object moves or undergoes a change in its position or configuration.
The amount of potential energy an object has depends on its mass, its position or height above a reference point, and the forces acting upon it. An object with a greater mass or a higher position has a greater potential energy than an object with a lower mass or position. There are several types of potential energy, including gravitational potential energy, elastic potential energy, and electric potential energy, among others. Gravitational potential energy is the energy possessed by an object due to its position in a gravitational field, while elastic potential energy is the energy stored in an object that is stretched or compressed
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