2. A 60 W filament lamp is powered by the 240 V mains electricity supply.
The lamp is switched on.
(a) Calculate:
(1) the current in the lamp
current =
[2]
(ii) the resistance of the lamp.
resistance =
[2]​

Answers

Answer 1

Answer:

I(current)=0.25A

R (resistance)=960ohms

Explanation:

1.)

P=60W

V=240V

I=?

Power= Current× Potential difference

P=IV

substitute 60 for P and 240 for V

60=I×240

I=60÷240

I=0.25A

Therefore, I=0.25A

2.) V=IR

Substitute 240 for V and 0.25 for I

240=0.25×R

R=240÷0.25

R=960W

Therefore, R=960W


Related Questions

please answer-WILL MARK THE BEST ANSWER AS BRAINLIEST (100 POINTS)


What type of movements occur at plate boundaries, and what type of landforms are created at each type of plate boundary?

Claim:

Evidence:

Reasoning:


Complete each section in complete sentences or bullet points.

Answers

Answer:

The Earth’s lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.

A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Mid-Atlantic Ridge and Pacific Ring of Fire are two examples of divergent plate boundaries.

When two plates come together, it is known as a convergent boundary. The impact of the colliding plates can cause the edges of one or both plates to buckle up into a mountain ranges or one of the plates may bend down into a deep seafloor trench. A chain of volcanoes often forms parallel to convergent plate boundaries and powerful earthquakes are common along these boundaries.

At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed.

Two plates sliding past each other forms a transform plate boundary. One of the most famous transform plate boundaries occurs at the San Andreas fault zone, which extends underwater. Natural or human-made structures that cross a transform boundary are offset—split into pieces and carried in opposite directions. Rocks that line the boundary are pulverized as the plates grind along, creating a linear fault valley or undersea canyon. Earthquakes are common along these faults. In contrast to convergent and divergent boundaries, crust is cracked and broken at transform margins, but is not created or destroyed.

The zombies are closing in on him and Mr. Mangan sees a ramp to his left. Hedrives at it and hits the ramp with a velocity of 30 m/s. If it took him 7 s toget to the ramp, what was his acceleration?

Answers

Given data

*The given velocity is v = 30 m/s

*The given time is t = 7 s

The formula for the acceleration is given as

\(a=\frac{v}{t}\)

Substitute the values in the above expression as

\(\begin{gathered} a=\frac{30}{7} \\ =4.28m/s^2 \end{gathered}\)

Hence, the acceleration is a = 4.28 m/s^2

The 10/90 principle can help you take control of your situation in taking responsibility of what you can change rather than in being victim of what you cannot change. Give an example of a situation that can change for you in applying this principle.

Answers

The 10/90 principle can be a powerful tool for taking control of your situation and improving your life. By taking responsibility for what you can change and focusing on your reaction to the situation, you can make positive changes in your life and become the master of your own destiny.

The 10/90 principle refers to the idea that life is made up of 10% of what happens to you and 90% of how you respond to it. In other words, you may not be able to control what happens to you, but you can control your reaction to it. By taking responsibility for what you can change rather than being a victim of what you cannot change, you can take control of your situation and improve your life.One example of a situation where the 10/90 principle could be applied is losing a job. Losing a job can be a devastating experience, and it can be easy to feel like a victim in this situation. However, by applying the 10/90 principle, you can take control of your situation and make positive changes in your life.The first step in applying the 10/90 principle in this situation would be to take responsibility for what you can change. This could mean updating your resume, networking with others in your field, and applying for new jobs. By taking action and doing what you can to find a new job, you are taking control of your situation and improving your chances of finding a new job.
The second step would be to focus on your reaction to the situation. Instead of dwelling on the negative aspects of losing your job, try to focus on the positive aspects. This could mean using the extra time to pursue a new hobby or spend more time with family and friends. By focusing on the positive aspects of the situation, you are taking control of your reaction and improving your overall well-being.
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This object was observed in 1997.

The object in the picture is ____ a/an .

This object was observed in 1997.The object in the picture is ____ a/an .

Answers

Answer: Hale-Bopp was an unusually bright comet that flew by Earth, reaching its closest approach to the planet in 1997.

Explanation:

Hale-Bopp is the answer

Answer: This is Comet Hale--Bopp

Explanation:

Calculate the density of a marble at 16 g and has a volume of 8cm 3

Answers

Answer:

16g/8cm3 = 2g/cm3 or 2x106g/m3

Explanation:

Hope it helps

Please Give me Brainliest

Answer:

16g/8cm3 = 2g/cm3 or 2x106g/m3

Which material is a composite? A. gold B.silicon C.polycarbonate D.aluminum

Answers

Answer:

Correct answer is polycarbonate not gold

Explanation:

A bicyclist is traveling at 2.0m/s then gets faster when traveling down a hill, reaching 19 m/s in only 3.5s. a) What was the acceleration of the rider, assuming it was constant for the ride? b) How long was this hill?

Answers

Answer:

a. \(4.857m/s^2\)

b.36.75 m

Explanation:

We are given that

Initial speed, u=2m/s

Final speed, v=19 m/s

Time, t=3.5 s

a.

We know that

Acceleration, a=\(\frac{v-u}{t}\)

Using the formula

\(a=\frac{19-2}{3.5}\)

\(a=\frac{17}{3.5}\)

\(a=4.857m/s^2\)

Hence, the acceleration of the rider, \(a=4.857m/s^2\)

b.

We know that

\(v^2-u^2=2as\)

Using the formula

\((19)^2-2^2=2\times 4.857s\)

\(361-4=9.714s\)

\(357=9.714s\)

\(s=\frac{357}{9.714}\)

\(s=36.75 m\)

Length of hill=36.75m

all elements in the same group have the same number of?
electrons
energy levels
electrons in the outermost energy level
bonds

Answers

All elements in the same group have the same number of electrons in the outermost energy level. Option C is correct.

What is a periodic table?

The periodic table is an organization of all known elements in order of increasing atomic number and repeating chemical characteristics.

They are organized in a tabular format, with a row representing an era and a column representing a group. E elements are ordered in increasing atomic number order from left to right and top to bottom.

Thus, Elements of the same group will have the same valence electron configuration and, as a result, will have comparable chemical characteristics.

Each set of elements has an equal amount of electrons in the outer orbital. Valence electrons are another name for the outer electrons.

They are the electrons interacting with other elements in chemical bonding. Each element in group one, the first column, has one electron in its outer shell.

Hence option C is correct.

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Which expenses do you think will change based on how much you drive

Answers

Increased driving can lead to higher vehicle maintenance and repair expenses, increased fuel costs, potential increases in auto insurance premiums, and additional parking fees, all of which should be considered when estimating the overall impact on your expenses.

The expenses that are likely to change based on how much you drive can be broadly categorized into two main areas: vehicle-related expenses and fuel-related expenses.

1. Vehicle-related expenses: The more you drive, the more wear and tear your vehicle will experience, leading to increased maintenance and repair costs. Regular oil changes, tire replacements, brake pad replacements, and other routine maintenance tasks will be required more frequently.

2. Fuel-related expenses: It's intuitive that the more you drive, the more fuel you'll consume, resulting in higher fuel expenses. Fuel prices can vary, but regardless of fluctuations, increased mileage will directly impact your fuel budget. Fuel-efficient vehicles may mitigate some of these costs, but the overall impact on your expenses will still be noticeable.

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Size (diameter) of one salt granule is 0.062 mm measured with micrometer. How many grains (grains as granules, not unit of measurement) of salt are needed to cover piece of paper with lenght 28 cm and width 22 cm? The only tool provided is a ruler. The salt particles are very fine and difficult to count individually. Thank you!

Answers

Given:

The diameter of one salt granule is: d = 0.062 mm = 0.0062 cm.

The length of the paper is: l = 28 cm

The width of the paper is: b = 22 cm

To find:

A number of salt grains are needed to cover the paper of the given dimensions.

Explanation:

One sand granule when placed on the paper, will cover the area "a" which is given as:

\(\begin{gathered} a=\pi(\frac{d}{2})^2 \\ \\ a=\pi\times(\frac{0.0062\text{ cm}}{2})^2 \\ \\ a=\pi\times(0.0031\text{ cm})^2 \\ \\ a=3.01907\times10^{-5}\text{ cm}^2 \end{gathered}\)

The area "A" of the given paper can be calculated as:

\(\begin{gathered} A=l\times b \\ \\ A=28\text{ cm}\times22\text{ cm} \\ \\ A=616\text{ cm}^2 \end{gathered}\)

Now, the number of salt grains "N" needed to cover the paper can be calculated as:

\(\begin{gathered} N=\frac{A}{a} \\ \\ N=\frac{616\text{ cm}^2}{3.01907\times10^{-5}\text{ cm}^2} \\ \\ N=20403634.23 \\ \\ N\approx20403634 \end{gathered}\)

Final answer:

20403634 salt granules are required to cover the area of the given paper.

A prism of having refractive index 1.5 and angle of prism
60° produces minimum deviation find the angle of
minimum deviations ?​

Answers

Answer:

f=37.18°

Explanation:

f is the angle of minimum deviation

a=60°

n=1.5

\(f = 2\times arcsin(sin( \frac{a}{2} ) \times n) - a\)

Performs Parts 1-3 in lab, Part 4 you answer by using your information gathered through Parts 1-3.

Part 1. How does the mass of a rolling object affect its final speed (rotational & translational) at the bottom of an incline?

Part 2. How does the radius of a rolling object affect its final speed (rotational & translational) at the bottom of an incline?

Part 3. How does the shape of a rolling object affect its final speed (rotational & translational) at the bottom of an incline?

Part 4. Would a cart that has four disks for wheels have a final speed (rotational & translational) that is greater than, less than, or equal to the final speed of a single disk that has the same mass as the cart and wheels?

Data Analysis:

1. Determine both translational and rotational speeds for the objects at the bottom of the incline.

2. Suppose a cart with four wheels and a disk whose mass is equal to the total mass of the cart roll down the ramp. Which, if either, has more gravitational potential energy at the top?

3. Which of those objects has more kinetic energy at the bottom, why?

4. Imagine a disk just spinning in place instead of rolling. Would it have kinetic energy? Why?

5. Why does the cart (Part 4) have more speed at the bottom even though it doesn't have more kinetic energy than the d

I just need someone to sit down with me and help me

Answers

Oh okie oh gosh lol lol

1) what type of energy is being transferred from the sun to a powerpank
2)What type of energy is being transferred from the power bank and cable to a moblie phone?? (Physics)​

Answers

Answer:

Solar energy

Electrical energy

Explanation:

The energy type being transferred from the sun to the a powerbank is solar energy.

Solar energy is the energy that is derived from the sun. This energy originates from light energy cause the excitation and movement of electrons from  a surface. The streaming of electrons produces electrical energy.

The electrical energy is used to charge mobile phone and to power it.

So the energy conversion is from solar to electrical energy

The first P-wave of an earthquake travels 5600 kilometers from the epicenter and arrives at a seismic station at 10:05 a.m. At what time did this earthquake occur?

Ahhhhhh I have a Regent's test in 2 hours and I don't know how to solve this type of question! Any help would be appreciated.

Anyone know what the steps to do this are? I dont even need an answer, just how to get to it. Thank you!

Answers

The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

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A ball is thrown at 200 ms-2 and its mass is 0.05kg what force is necessary to change
its direction?

Answers

Answer:

F = 10 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F = m*a

where:

F = forces [N]

m = mass = 0.05 [kg]

a = acceleration = 200 [m/s²]

\(F =m*a\\F = 0.05*200\\F = 10 [N]\)

Two identical point charges q=71.0 pCq=71.0 pC are separated in vacuum by a distance of 2d=29.0 cm.2d=29.0 cm. Calculate the total electric flux ΦΦ through the infinite surface placed at a distance dd from each charge, perpendicular to the line on which the point charges are located.

Answers

Answer:

The electric flux at the infinite surface is ZERO

Explanation:

From the question we are told that  

    The point charge are identical and the value is  \(q = 71.0 pC = 71 * 10^{-12} \ C\)

    The distance of separation is  \(D = 29.0 \ cm = 0.29 \ m\)

    The distance of both from the infinite surface is  d

Generally the electric force exerted by each of the  charge on the infinite surface is

       \(\phi = \frac{q}{\epsilon_o}\)

Now given from the question that they are identical, it then means that the electric flux of the first charge on the infinite surface will be nullified by the electric flux of the second charge hence the electric flux at that infinite surface due to this two identical charges is ZERO

(1-dimension) A fish has a mass of 6 kg and is moving at a speed of 4m/s to the right. What is its momentum?

Answers

Answer:

24 kg m/s

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 6 × 4

We have the final answer as

24 kg m/s

Hope this helps you

Study the image.

In the image, a scientist is using a metal bar to deflect an electron beam.

What material can this metal be made of?

Study the image.In the image, a scientist is using a metal bar to deflect an electron beam. What material

Answers

The material in which this metal be made of is Iron.

What is a Magnet?

A magnet is referred to an object which produces a magnetic field. A magnet is typically made from Iron, nickel or cobalt.

In the diagram, the metal bar is that of a magnet which is also able to  deflect an electron beam which is the reason why Iron was chosen as the most appropriate choice.

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Jacobie wanted to test the projectile motion of a pumpkin. His hypothesis was if the pumpkin had a larger mass, then the higher he could throw it, because the larger pumpkins would have more force. He bought three orange pumpkins and tested them all on the same day. His results are shown at right. Does the data support his hypothesis?

Answers

The data does not support his hypothesis because the heaviest mass travelled the least distance.

How does mass affect the height travelled by an object?

The weight of an object is the force of gravity acting on the object and the force of gravity increases with increase in the mass of the object.

W = mg

where;

m is the mass of the objectg is acceleration due to gravity

Based on law of conservation of energy;

P.E = K.E

mgh = ¹/₂mv²

h = ( v² ) / ( 2g )

The height travelled by an object increases with increase in speed of the object and heavier objects will have greater speed, hence travel greater height.

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The complete question is below:

Jacobie wanted to test the projectile motion of a pumpkin. His hypothesis was if the pumpkin had a larger mass, then the higher he could throw it, because the larger pumpkins would have more force. He bought three orange pumpkins and tested them all on the same day. His results are shown at right. Does the data support his hypothesis?

5kg = 10meters

10kg = 5 meters

15kg = 1 meter

Which sentence states Newton's second law?​

Answers

Answer:

Force is equal to the change in momentum per change in time.

Explanation:

That situation is described by Newton's Second Law of Motion. According to NASA, this law states, "Force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration." This is written in mathematical form as Force = mass.

If a car with a mass of 1,200 kg traveling westward at 30 m/s is
slowed to a stop in 3 s, then what was the net force acting on
the car?

Answers

The net force acting on the car is equal to -12000 Newton.

Given the following data:

Mass = 1,200 kgInitial velocity = 30 m/s.Final velocity = 0 m/s (since the car came to a stop).Time = 3 seconds.

To determine the net force acting on the car:

How to calculate the net force.

Mathematically, the net force acting on the car is given by Newton's Second Law of Motion:

\(F = \frac{m(v\;-\;u)}{t}\)

Where:

m is the mass.t is the time.u is the initial velocity.u is the final velocity.

Substituting the given parameters into the formula, we have;

\(F = \frac{1200 \times (0\;-\;30)}{3}\\\\F = \frac{1200 \times (-30)}{3}\\\\F = \frac{-36000 }{3}\)

Net force = -12000 Newton.

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6. Shortly after the Big Bang occurred, about 14 billion years ago, the Universe was very hot, about 3000 K, why then today, is the CMB at about 2.7 K ?

Answers

The CMB radiation's current temperature of 2.7 Kelvin is a result of the cooling and redshifting caused by the expansion of the Universe, which has been slowing down over time due to gravity.

The Cosmic Microwave Background (CMB) radiation is a remnant of the early hot and dense Universe. About 380,000 years after the Big Bang, the Universe cooled enough to allow the formation of neutral atoms, which made it transparent to radiation. This released the CMB radiation, which has been traveling through the Universe ever since, and its temperature has been cooling due to the expansion of the Universe. The CMB radiation is currently observed at a temperature of about 2.7 Kelvin, much cooler than the early Universe's temperature of 3000 Kelvin. This cooling is due to the expansion of the Universe, which causes the radiation to redshift to lower energies and longer wavelengths. This effect is known as the cosmological redshift. Moreover, the expansion of the Universe is not constant, but rather it is slowing down due to the gravitational pull of matter. This means that the early Universe's rate of expansion was faster than it is today, causing the CMB radiation to cool more rapidly in the past.

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When the dried-up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.65 m/s
at an angle of 30.0 ∘ below the horizontal. The seed pod is 0.460 m
above the ground.
How long does it take for the seed to land?
t= ? sec
What horizontal distance does it cover during its flight?
x=? M

Answers

Answer:

To solve this problem, you'll need to break the initial velocity of the seed into its horizontal and vertical components, then use the equations of motion to find the time of flight and horizontal distance.

The initial velocity (v) of the seed is 2.65 m/s. The angle it's launched at (θ) is 30.0 degrees below the horizontal. The height (h) it's launched from is 0.460 m.

First, calculate the horizontal (v_x) and vertical (v_y) components of the velocity. Because the seed is launched downward, the vertical component will be negative:

v_x = v * cos(θ) = 2.65 m/s * cos(30.0) = 2.29 m/s

v_y = v * sin(θ) = -2.65 m/s * sin(30.0) = -1.325 m/s

Next, use the equation of motion to find the time it takes for the seed to hit the ground:

h = v_y * t + 0.5 * g * t^2

Where g is the acceleration due to gravity, which is approximately 9.8 m/s². Solving the equation for t gives:

t = (-v_y - sqrt((v_y)^2 - 4 * 0.5 * g * (-h))) / (2 * 0.5 * g)

Plugging in the values:

t = (1.325 + sqrt((-1.325)^2 - 4 * 0.5 * 9.8 * (-0.460))) / (2 * 0.5 * 9.8)

t = 0.182 seconds

Finally, use the horizontal velocity and time of flight to find the horizontal distance the seed covers:

x = v_x * t = 2.29 m/s * 0.182 s = 0.417 m

So, the seed lands after approximately 0.182 seconds and travels approximately 0.417 meters horizontally.

Please Help!!! I WILL GIVE BRAINLIEST!!!! An electron is in motion at 4.0 × 10^6 m/s horizontally when it enters a region of space between two parallel plates, starting at the negative plate. The electron deflects downwards and strikes the bottom plate. The magnitude of the electric field between the plates is 4.0 x 10^2 N/C and separation between the charged plates is 2.0 cm. a.) Determine the horizontal distance traveled by the electron when it hits the plate. b.)Determine the velocity of the electron as it strikes the plate.

Answers

Answer:

Explanation:

Given that

speed u=4*10^6 m/s

electric field E=4*10^3 N/c

distance b/w the plates d=2 cm

basing on the concept of the electrostatices

now we find the acceleration b/w the plates

acceleration a=qE/m=1.6*10^-19*4*10^3/9.1*10^-31=0.7*10^15 =7*10^14 m/s

now we find the horizantal distance travelled by electrons hit the plates

horizantal distance X=u[2y/a]^1/2

=4*10^6[2*2*10^-2/7*10^14]^1/2

=3*10^-2=3 cm

now we find the velocity f the electron strike the plate

v^2-(4*10^6)^2=2*7*10^14*2*10^-2

v^2=16*10^12+28*10^12

v^2=44*10^12

speed after hits =>V=6.6*10^6 m/s

Question 6 of 10
The mass number of a nucleus decreases during which nuclear reactions?
A. Nuclear fusion and alpha decay
B. Nuclear fission and beta decay (electron emission)
C. Nuclear fusion and beta decay (positron emission)
D. Nuclear fission and alpha decay

Answers

The answer is A

Hope that helps!

Answer:

D. Nuclear Fission and alpha decay

A rollerskating mom has 10,000 kgm/s of momentum. As she's skating, she picks up her 20kg son, who is at rest. What is the momentum of the mom and son together?

Answers

The momentum of the mom and son together is 10,000 kgm/s.

Momentum is a measure of an object's motion, and is calculated as the product of an object's mass and velocity. When the mom picks up her son, the velocity of the combined system doesn't change, so the momentum of the combined system remains the same as the momentum of the mom alone.

p = m * v
where p is momentum, m is mass, and v is velocity.

For the mom alone:
p = 10000 kgm/s = 10,000 kg * 1 m/s

For the mom and son together:
p = (m_mom + m_son) * v = (10,000 kg + 20 kg) * (1 m/s) = 10,020 kg * 1 m/s = 10,020 kgm/s = 10,020 kgm/s

What is the momentum of a 0.144kg baseball thrown at a speed of 46m/s? Give your answer in kgm/s.

Answers

ANSWER:

6.624 kgm/s

STEP-BY-STEP EXPLANATION:

Given:

Mass (m) = 0.144 kg

Speed (v) = 46 m/s

We can calculate momentum using the following formula:

\(\begin{gathered} P=m\cdot v \\ \\ \text{ We replacing} \\ \\ P=0.144\cdot46 \\ \\ P=6.624\text{ kgm/s} \end{gathered}\)

The momentum is 6.624 kgm/s

Rigid rods of negligible mass lying along the y axis connected three particles. The system rotates about the x axis with an angular speed of 2.00 rad/s. Find the total rotational kinetic energy evaluated from 1/2 Iω ^2

Answers

The total rotational kinetic energy of the system can be found by evaluating the above expression using the given values of m, r, and ω \(KE = 1/2 * (m1 * r1^2 + m2 * r2^2 + m3 * r3^2) * (2.00 rad/s)^2\)

The total rotational kinetic energy of a system can be found by evaluating the expression 1/2 Iω^2, where I is the moment of inertia of the system and ω is its angular velocity. In this case, the moment of inertia of the system can be found by adding the moments of inertia of each particle and the connecting rods.

Since the rods have negligible mass, their moment of inertia is also negligible and can be ignored. The moment of inertia of each particle is given by the formula:

I = mr^2

where m is the mass of the particle and r is its distance from the axis of rotation.

Assuming the particles have masses m1, m2, and m3 and distances from the axis of rotation r1, r2, and r3, respectively, the total moment of inertia is:

\(I = m1 * r1^2 + m2 * r2^2 + m3 * r3^2\)

Substituting the given values, we find:

I = (m1 * r1^2 + m2 * r2^2 + m3 * r3^2)

Finally, substituting the moment of inertia and angular velocity into the expression for rotational kinetic energy, we find:

KE = 1/2 * I * ω^2

\(KE = 1/2 * (m1 * r1^2 + m2 * r2^2 + m3 * r3^2) * (2.00 rad/s)^2\)

So, the total rotational kinetic energy of the system can be found by evaluating the above expression using the given values of m, r, and ω.

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A 3 kg block is placed on a flat smooth surface and pushed horizontally with a force of 2N. What is the acceleration

Answers

Answer:

0.67 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

f is the force

m is the mass

From the question we have

\(a = \frac{2}{3} \\ = 0.66666...\)

We have the final answer as

0.67 m/s²

Hope this helps you

(Forces and the Laws of Motion pg. 141; Friction) (Problem 4)
A box of books weighing 325 N moves at a constant velocity across the
floor when the box is pushed with a force of 425 N exerted downward at an
angle of 35.2° below the horizontal. Find μk between the box and the floor.

Answers

The coefficient of kinetic friction is determined as 0.75.

What is coefficient of friction?

The coefficient of kinetic friction is calculated by applying the newton's second law of motion.

Fsinθ - Ff = ma

where;

Ff is frictional forceθ is angle of applied force

W = mg

where;

m is mass of the box

m = W/g

m = 325/9.8

m = 33.2 kg

425 sin(35.2)   -  Ff = 33.2a

425 sin(35.2)   -  μW = 33.2a

at constant velocity, a = 0

425 sin(35.2)   -  μW= 0

μW = 244.98

μ = 244.98/W

μ = 244.98/325

μ = 0.75

Thus, the coefficient of kinetic friction is 0.75.

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Use this word in a sentence-Treachery. (I will award most brainlest). Use the surface integral in Stokes' Theorem to calculate the flux of the curl of the field f=5zi+2xj+yk across the surface s: Solve the following equation, answer as a reduced, mixed number. Then place the correct number in the box provided. 4(7 - 3x) = 7(4 - 2x) Determine the relationship between the two triangles and whether or not they can be proven to be congruent In a bag there are 72 candy bars. 40 of them are snickers, 24 of them are milky ways, the rest are Kit Kats. For a given population and a given quantity of labor employed, what will happen to aggregate production and income per capita if there is an increase in a nation's capital stock? A. Aggregate production will increase, and income per capita will decrease. B. Aggregate production will increase, and income per capita will increase. C. Aggregate production will decrease, and income per capita will be indeterminate. D. Aggregate production will decrease, and income per capita will increase. E. Aggregate production will decrease, and income per capita will be indeterminate. a=7 c=25 b=? plz help The Sustainability Accounting Standards Board was established to develop _____ standards for businesses' sustainability activities. A there are 3 red pen pens, 4 blue pens, and 5 green pens in a drawer. suppose you choose a pen at random thanks in advance~ What type of bond is formed when two atoms share one or more pairs of valence electrons? Frank pays 2.85 for a bag of 15 tangerines.Find the unit price in dollars per tangerine.If necessary, round your answer to the nearest cent. what does x equal? ??? Please fill out the following chart.1.(Genetic Drift) Allele ______ change by chance2.(Gene Flow) The _______ of alleles from one ______ to another changes the allele frequencies in each population3.(Mutation): Write description. ` grave or tilda key (just to the left of the #1) On what continent did the Dahomey Amazons live? - Europe - Australia Africa - Asia which of the following will cause free cash flow to equity to increase? the company acquires a company with cash from the balance sheet. the company calls a bond after interest rates decrease. the federal government decreases the tax rate on companies to attract more business to the u.s. the company's accounts receivable increase from last year. find the value of z A. 25.25B. 51C. 129D. 76.25 At a minimum, an effective compliance program includes four core requirements. T/F Explain what is meant by the time value of money, anddiscuss its relevance to the capital budgeting process employees at sarahs style shop are to receive a year-end bonus. the amount of the bonus depends on the employees weekly pay, their position code, and number of years they have worked at the store.