At what point in its motion is the KE of a pendulum bob at a maximum? At what point is its PE at a maximum? When its KE is at half its maximum value, how much PE does it have relative to its PE at the center of the swing?

Q: A camera lens has a focal length of 900 mm. a. Compute for the image location and the size of the im...

A: Given data: Distance of the object (u) = -20 m Focal length (f) = 900 mm                         = 0...

Q: A capacitor with capacitance C = 5 μF is charged to a voltage V = 10V. It is then discharged through...

A: Given  C = 5 uF  V = 10 V  R = 2M ohm  V1 = 1 V  Noe time constant is given as  t = CR = 5*2*10^(-6+...

Q: When a potential difference of 150 V is applied to the plates of a parallel-plate capacitor, the pla...

A: Given Data: The potential difference is, V = 150 V. The surface charge density is, σ = 35 nC/cm2. ...

Q: Greetings and thank you for your help.... i appreciate you 16. Olympic ice skaters are able to spin ...

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Q: What would happen to the wavelength from the previous question if the frequency of waves increased?

A: The distance AB = 10 m To find = a) wavelength                 b) change in wavelength if frequency ...

Q: Consider an inclined plane. (Click on the link) A block of mass m1 rests on a frictionless ramp, whi...

A: m1 = 18.1 kg m2 = 4.57 kgθ = 44 degree   

Q: A 0.45 m wire carries 0.68 A of current. It is pushed by a magnet with a force of 1.0 N. What is the...

A: To determine: The magnetic field strength of the wire   Given: Length of the wire, L=0.45 m Current,...

Q: A particle moves with a simple harmonic motion through space. When time was zero, its position was a...

A: Given data, particle moves with SHM velocity when the particle is at equilibrium position, V = 15cm/...

Q: A force of 14N in the negative x-direction acts simultaneously to a force of 16N in the positive y-d...

A: The figure shows the resultant force is,

Q: You can find the center of gravity of a long ruler by resting it horizontally on your two index fing...

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Q: Problem 1: Two point charges exert a 7.5 N force on each other. What will the force become in N if t...

A:

Q: A 17 kg penguin waddling west at a velocity of 7.8 m/s collides with a stationary 12 kg penguin. Aft...

A: Mass of first Penguin (m) = 17 kg Initial velocity of penguin (u) = - 7.8 i^ msMass of second pengui...

Q: A particle of mass 250 gm was fired from the origin with an initial velocity of 4 cm / s. Calculate ...

A: Here the given obstructing force is the force at a time so we need to integrate this function F(v) o...

Q: Calcuiate the value of the current required to create a 10-4 * 2 wb magnetic flux in the magnetic ci...

A: SOlutionGiven that Flux =2x10-4 Wb A = 1.3x10-4 m2 N=200 d = 0.3 m

Q: How does wegeners theory of continental drift support plate tectonic theory

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Q: 1. What is full wave rectifier? 2. What are the types of full Wave Rectifier? 3. What are the compon...

A: A rectifier is a device which is used to convert AC signal into DC signal There are mainly two types...

Q: X- rays with wave length of 0.58 A° are used for calculating d(200) in nickel .The reflection angle ...

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Q: 1. A 100-lb block slides down a frictionless inclined plane at an angle of 60 with the horizontal. D...

A: Consider an object of mass m pulled upward by with a tension T=150 lbf. The body weighs W=mg downwar...

Q: What Is The Principle Of Reversibility of light?

A: The principle of reversibility of light states that light follows the same path if the direction of ...

Q: 1.A heat engine takes in 400 J of energy from a hot reservoir and performs 26.0 J of work in each cy...

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Q: 1. In the Bohr model of a hydrogen atom, an electron spins at constant a distance of 103 A° from a p...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: DC resistance of diode is -4 measured at

A: DC resistance is calculated at the constant current and voltage. It also represents the steady-state...

Q: A man jumps from a balloon which is rising vertically at a constant rate of 2 mps at an elevation of...

A: Given: The rate of elevation is 2 m/s. The height from which the man jumps is 1415 m. The time durat...

Q: A 40.0-m-long steel elevator cable has a cross-sectional area of 4.0 × 10^(-4 )m^2and is able to str...

A: Young's modulus is the mechanical property of a material tells about the stiffness of a material i.e...

Q: A man throws a stone horitontally with velocity Vo, if h is 22 meters and x is 107 meters. Find Vo S...

A: GIven The height from which the stone is thrown is h=22 m. The horizontal distance covered by the s...

Q: A 2.0-kg aluminum block is originally at 10 degrees celcius. If 36 k) of energy are added to the blo...

A: Given:Mass(m)=2 kg , specific heat (cp)=900 J/kg.KAdded heat = 36000 JInitial temperature,Ti=10°=283...

Q: A compact car has a maximum acceleration of 5.0 m/s2m/s2 when it carries only the driver and has a t...

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Q: During a “brownout”, which occurs when the power companies cannot keep up with high demand, the volt...

A: Power ratings in any electrical load is depends on voltage supplied so a 100W rated bulb may consume...

Q: What was the most likely reason that egg #2, though dropped from the same height, probably did not e...

A: The reason why an egg breaks are the concentrated force on a particular region of eggshell. When an ...

Q: 1. Cars A and B approached each other on a straight road from points 450 m apart. Car A has an initi...

A: Note:- As per the guidelines of Bartleby, only one question is allowed to answer so, please submit a...

Q: ce Prove that E. LC

A: SOlution: To prove 1LC=ω2

Q: Consider again the system in quizzes 1 and 2, namely a particle moving in one dimension described by...

A: The expectation value of momentum is p^x=ℏiddx Given: Ψx=30a xa-x for 0≤x≤a Ψx=0 for x<0 and x&gt...

Q: 5. A sample of gas has a volume of 215 cm3 at 23.5°C and 84.6 kPa. What volume will the gas occupy a...

A: Calculate the volume of the gas at STP as shown below. P1V1T1=P2V2T2V2=P1P2T2T1V1 The standard tempe...

Q: A 2.05 m length of wire is held in an east–west direction and moves horizontally to the north with a...

A: Scenario: Wire is located in EW direction & moved towards N horizontally. In this region, earth'...

Q: Help

A: According to Newton third law, when a force is applied to a body, then the same amount of force is a...

Q: You note that your prescription for new eyeglasses is  −5.05 D.  What will their focal length (in cm...

A: Prescription of eye glasses = -5.05 D Power of eye glass = -5.05 D   

Q: Concrete mixer* In a concrete mixer, cement, gravel, and water are mixed by tum- bling action in a s...

A: Given: The radius of the drum = 0.5 m Speed of the drum =?  

Q: has a rectangular cross-section (1x 4 um). A CuTUlm produces a voltage drop of (100 mV) across the l...

A: Given  L = 2.8mm  A = 1*4 um  I = 5 mA  V = 100 mV  So resistance R = V/I = 100/5 = 20 ohm  We know ...

Q: In t-ball, young players use a bat to hit a stationary ball off a stand. The 140g ball has about the...

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Q: 1. In 1989 during overtime in a high school basketball game in Erie, Pennsylvania, Chris Eddy shot a...

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Q: Two capacitors C, = 3.00 µF and C2 = 14.0 µF are connected in series to a 9.00 V battery. (a) Find...

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Q: When a magnet is brought near a piece of iron and pulls it along a table without touching it, what t...

A: Magnet generate magnetic field around it.which form a closed path, when an magnetic object is placed...

Q: Find the speed required to throw a ball straight up and have it return 6 seconds later.

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Q: How Do We Save Petrol When The Tyres Of The Motor Cycle Are Fully Inflated?

A: When tires are not fully inflated, the contact of the tire and the road is changed, therefore, rolli...

Q: Two long parallel wires separated by 2.00 cm carry currents in the same direction. The current in on...

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Q: What Is The Principle Of Working Of A Rocket?

A: The principle of rocket propulsion works on the 'Newton's Third Law of Motion'. It states that, 'to ...

Q: A 0.25 kg skateboard is sitting at the top of a ramp that is 3.0 meters above the ground.  What is t...

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Q: Ql: For the signal x(t), shown in figure below. 2a i) Find Fourier Transform X(w). Knowing that : F{...

A: Given: x(t)=eα(t-τ) when -∞<t≤τe-α(t-τ) when ∞>t≥τ

Q: Help

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Q: Time-dependent force* A 5-kg mass moves under the influence of a force F = (4ri-3tj) N, where t is t...

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.