When light with a wavelength of 221 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.28 10^-19 J. Determine the wavelength (in nm) of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface.

Q: Air flows at 210 m/s through the pipe. The temperature is 400 K and the absolute stagnation pressure…

A: Given Data: Stagnation Pressure Pstag=280 kPa=280×103 Pa Temperature T=400 k R=286.9 J/kg.K Velocity…

Q: 5. Nuclear radioactivity is process by which unstable atomic nuclei split into more stable…

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Q: Sapphires are a type of blue gemstone. The critical angles between a sapphire and air is 34.4…

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Q: ** o masses are connected over an inclined plane as shown. N Y. X mi m₂g. = mig TNT MASS 1 ΣFix =…

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Q: The mass of a certain elephant is 4,167 kg. (a) Find the elephant's weight in newtons. N (b) Find…

A: The mass of a certain elephant, m=4,167 kg To find (a) the elephant's weight in newton (b) the…

Q: hockey puck that has a mass of 170 g travels with a speed of 30 m/s. What is the momentum…

A: Mass of object is m=170 g Velocity of object is v=30 m/s Note: 1 kg=1000 g Find: Momentum of object.

Q: A quantum particle is described by the wave function ψ(x) = A cos (2πx/L) for −L/4 ≤ x ≤ L/4 and…

A: ψ(x) = A cos (2πx/L) for −L/4 ≤x ≤ L/4  ψ(x) =0 everywhere

Q: Three identical 22.0 x 10-6 C charges are on the corners of an equilateral triangle of side 0.111 m.…

A: The magnitude of the three identical charges is, q1=q2=q3=q=22×10-6 C Distance between any two…

Q: A small crack occurs at the base of a 13.0m high dam. The effective area through which water leaves…

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Q: What is the output voltage of a battery that expends 12 J of energy in moving 1.5 C of charge?

A: Work done by the battery                                       W = 12 J Charge moved…

Q: A 6000 N elevator from rest attains an upward velocity of 6m/s in 4 seconds  with uniform…

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Q: Question 3 Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m.…

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Q: waves of the same frequency have amplitudes 1.00

A: Amplitude, a1 = 1.00 Amplitude, a2 = 2.00 Phase difference, Φ = 60° Resultant amplitude, A = ?

Q: A 500-nm thick oil film with unknown index of refraction is spread over a sheet of glass (nglass =…

A: When light is reflected from a thin film, interference between the light waves reflected from the…

Q: A force of 280 N is sufficient to keep a 90 kg wooden block moving at a  constant velocity across a…

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Q: You push on a rectangular door at the location of the knob (see diagram for top view). The door s…

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Q: A nuclear power plant operates at 61 % of its maximum theoretical (Carnot) efficiency between…

A: The source temperature is 650 °C The sink temperature is 350 °C The efficiency of the power plant is…

Q: A passenger jet flies from one airport to another 1,313 miles away in 2.3 h. Find its average speed.

A: Distance covered by jet is d = 1313 miles Time t = 2.3 h

Q: A crate is subjected to two forces (F₁ and F₂) as shown in the below diagram: F₁ has a magnitude 60N…

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Q: A string of linear mass density μ = 0.25 kg/m is stretched between two supports with a uniform…

A: The speed of a wave traveling along a string under tension is given by: v=Tμ where T is the tension…

Q: When the volume of an ideal gas stays the same, which of the followings must be true? Select all…

A: Work done (W) is given by: W=∫P.dV=P.(∆V) Here, P=PressureV=Volume∆V=Change in volume

Q: Water flows through a horizontal cylindrical pipe of varying cross section. The velocity is 5.1 m/s…

A: Given: The velocity at point 1: v1=5.1 m/s Pipe diameter at point 1: d1=1.4 cm Diameter at point 2:…

Q: 1. • A beam of light has a wavelength of 650 nm in vacuum. (a) What is the speed of this light in a…

A: Wavelength of light is λ=650(nm) Index of refraction of medium is n=1.47 We know that V=cn Where…

Q: 80. A driver slams on the brakes, leaving 88.0-m-long skid marks on the level road. The coefficient…

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Q: 1) The position of a mass oscillating on a spring is given by x=(7.8) cos (2t/0.68). What is the…

A: Since you posted multiple questions, we will solve only first question and for the solutions of…

Q: What is the critical angle for the interface between water and diamond? The index of refraction of…

A: nwater = 1.33, ndiamond = 2.42.  Because diamond has a higher index of refraction, the light ray…

Q: A student throws a 2.5kg ball horizontally off the top of a building with an initial speed of 4.25…

A: mass of first ball = m1 = 2.5 kg initial horizontal velocity = V0x = 4.25 m/s mass of second ball =…

Q: What does it mean to measure sound in decibels?

A: Sound intensity: It is a measure of the amount of sound energy passing through a particular area per…

Q: 2. An EM wave has a wavelength of 150 nanometers. ( a. (a) What is the frequency of this wave? b. C.…

A: Wavelength of EM wave, λ=150 nm=150×10-9 m   To determine: (a) Frequency (b) Type of EM wave (c)…

Q: When using these equations to solve for thickness needed for film in order to cancel/keep light…

A: When a light wave coming from a rarer medium(with a lower refractive index) reflects off a denser…

Q: A proton enters a magnetic field with a speed of u = 1.2080 force exerted by the magnetic field on…

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Q: A charge +q is placed at x = 0 and a charge +4q is placed at x = 5 units. Where, along the x-axis is…

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Q: 1.50 moles of a monatomic ideal gas goes isothermally from state 1 to state 2. P1 = 2.4×105 Pa, V1 =…

A: The number of mole is 1.5 moles. The process is isothermal. The initial pressure and initial volume…

Q: 11) A uniform electric field of magnitude 6.8 X 105 points in the positive x direction. Find the…

A: Electric field ( E ) = 6.8 × 105 The origin's location is indicated as ( 6,0 )

Q: 8) A mass of a proton is 1.67 x 102*ng, which of there is the Kicctic enmay of a priton moving and…

A: mass of proton (m) = 1.67×10-27 kg speed of proton (v) = 0.92 c

Q: The Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind. As the passenger…

A: The acceleration is given as a=v-ut…

Q: What is the effective resistance of the I following circuit ? 54Ω 98.Q 6352 W

A: The resistance of the resistors are 54 Ω, 63 Ω, and 98 Ω. The connection of the resistors are in…

Q: 69. A spherical marble that has a mass of 50.0 g and a radius of 0.500 cm rolls without slipping…

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Q: A storage tank contains water to a height of 25m. The air above the water  inside the tank has a…

A: Given , Height of tank H=25 m gauge pressure P=4.5 Atm

Q: The work function of sodium is 2.3 eV. What is the longest wavelength that can cause photoelectric…

A: Work function of sodium ( W ) = 2.3 eV

Q: Lee watchesTV for 2 hours per day. During that time, The TV consumes 200 W per hour. Electricity…

A: P=200W=0.2 KW (Power consumed per hour) T=30*2=60 hours (total time) Rate= 12 cents per Kilowatt…

Q: When an object is placed 8 cm in front of a mirror, the image is virtual and twice the height of the…

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Q: A soft tennis ball is dropped onto a hard floor from a height of 1.60 m and rebounds to a height of…

A: Dear student,  Since you have posted a question with multiple subparts, as per company guidelines we…

Q: Which quarks are found within a proton?  a u, d, d,  b u, u, d  c u, b, d  d u, t, d

A: The quarks which are found within a proton is discussed below :

Q: 2.2.9 In right circular cylindrical coordinates a particular vector function is given by V(p, y) =…

A: The curl of a vector field give us an idea of the curling of the field in the space, that is, how…

Q: 13) A bird lands on a bare copper wire carrying a current of 32A. The wire has a cross sectional…

A: current carrying through copper wire ,I= 32Across sectional area of copper wire ,A =0.13…

Q: Determine the natural frequency in cycles per second for the system shown. Neglect the mass and…

A: Mass of block m=4.9 kg Spring constant k= 195 N/m

Q: he harmonic motion function d(t) = 5cos(2 t), in which d is measured in centimeters and t is…

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Q: 9. A ray of light travels from liquid -to-glass interface at an angle of 30.0°. Indices of…

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Q: A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For…

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Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.