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Physics Questions and Answers September 11, 2019

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Light rays from the Sun, which is at an angle of 3 2 . 6 above the western horizon, strike the still surface of a pond. What is the angle of incidence of the Sun's rays on the pond?
Light rays from the Sun, which is at an angle of

q , ( 4 9 ) The smallest energy of an absorbed photon that will raise a hydrogen atom from its ground state to its first excited state is q , eV . A . 1 3 . 6 C . 3 . 4 E . 1 . 9 B . 1 . 5 D . 1 0 . 2
q , ( 4 9 ) The smallest energy of an absorbed

A 3 . 2 0 kg mass is attached to one end of a horizontal spring with spring constant 1 1 8 N m . The other end of the spring is attached to a wall and doesn't move. The spring and mass are on a horizontal, frictionless surface and the spring is initially stretched to the right by 3 . 4 0 cm relative to its equilibrium length and then the mass is
A 3 . 2 0 kg mass is attached to one end of a

A string is wrapped several times around the rim of a small hoop with a radius of 8 . 0 0 1 0 2 mm and a mass of 0 . 1 8 0 kgkg .

Nowadays, touch screen devices are everywhere. Consider a simple capacitive touch sensor comprised of a resistor with resistance R = 1 . 8 1 M and a capacitor with capacitance C = 1 . 1 3

In a prism, dispersion ( a wavelength - dependent refractive index ) causes different colours to refract at different angles, splitting white light into its component colours. A white light beam strikes an equilateral glass prism, with an incident angle of i 1 = 6 0 . 0 . Consider two component colours, blue ( 4 3 4 nm ; n b l u e = 1 . 5 2 8 in
In a prism, dispersion ( a wavelength - dependent

find solution for book "case studies in reliability and maintenance"

a pendulum consists of a 2 . 0 - kg block hanging on a 1 . 5 - m length string. a 1 0 - g bullet moving with a horizontal velocity of 9 0 0 m / s strikes, passes through, and emerges from the block

A bartender slides a beer mug at 1 . 6 m / s towards a customer at the end of a frictionless bar that is 1 . 0 m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar. ( a ) How far away from the end of the bar does the mug hit the floor? m ( b ) What are the speed and direction of the mug at impact?

What percentage of the energy we use comes from the sun? More than 9 0 % 5 0 % Less than 1 0 % 2 5 %
What percentage of the energy we use comes from

Getting from a displacement vs . time graph to an equation A cart attached to a spring is displaced from equilibrium and then released. The graph below shows the displacement as a function of time for the cart. There is no friction. A . Use the graph to figure out the period of the cart's motion, then use the period to figure out the frequency and
Getting from a displacement vs . time graph to an

What is the Kelvin Helmholtz instabilities?

A 9 9 0 0 0 kg iceberg at 5 . 7 C breaks away from the polar ice shelf and floats away into the ocean at 5 . 1 9 C . Answer in units of kW . Question 2 , chap 1 2 2 , sect 4 . part 2 of 2 1 0 points Howmuchenergydoesitexpelin eachcycle by heat? Answer in units of kJ . Question 3 , chap 1 2 2 , sect 8 . part 1 of 1 1 0 points An iron horseshoe of

A system of two objects has Ktot Ktot = 6 JJ and Uint Uint = - 3 JJ . How much work is done by interaction forces?

A loop of wire is at the edge of a region of space containing a uniform magnetic field B B . The plane of the loop is perpendicular to the magnetic field. Now the loop is pulled out of this region in such a way that the area AA of the coil inside the magnetic field region is decreasing at the constant rate cc . That is , dAdt = cdAdt = c , with c

For the following circuit, what is the potential difference across C 1 ?
For the following circuit, what is the potential

Which statements about gravitational waves are true? ( Select all that apply ) . Group of answer choices Gravitational waves are ripples in the curvature of spacetime. Gravitational waves from distant black holes make lengths of nearby objects change by less than the diameter of a proton. Gravitational waves from the collisions of orbiting pairs

The electrons in a rigid box emit photons of wavelength 1 4 8 4 nmnm during the 3 2 transition.

The muscles at the back of the neck should therefore exert a force to keep the head erect. That is why your head falls forward when you fall asleep in the class. ( a ) Calculate the force ( in N ) exerted by these muscles. ( Assume w = 5 1 N , r 1 = 4 . 7 cm , and r 2 = 2 . 6 cm . ) magnitude Ndirection - - - Select - - - upward downward to the

A 9 . 0 gg ice cube at - 1 0 C C is in a rigid, sealed container from which all the air has been evacuated. Steam has cVcV = 1 5 0 0 J / kg KJ / kg K and cPcP = 1 9 6 0 J / kg KJ / kg K .

Monday Homework Problem 1 4 . 6 An Argon laser ( = 5 . 0 1 0 2 nm ) shines down a silica glass fiber - optic cable with index of refraction 1 . 4 6 . What length of cable, d , is required, if the light is to pass through it in 3 . 0 s ? Select One of the Following: ( a ) 2 9 0 m ( b ) 4 2 0 m ( c ) 6 2 0 m ( d ) 1 0 0 0 m ( e ) Toby

Which of the following is not an accurate statement regarding the pressure of a gas? Pressure is defined to be the force applied to a surface per unit area of the surface. Pressure is measured in unit of pascal ( k g m - s 2 ) while one atmosphere ( 1 atm ) is 1 0 1 3 2 5 ( 1 . 0 1 1 0 5 ) pascals. Pressure of a gas is directly proportional to
Which of the following is not an accurate

Around the corner | Problem A car travels at a constant speed around a frictionless, banked, circular corner of radius r . Which force ( s ) have a non - zero radial component? Group of answer choices Normal force Centripetal force Friction Gravity Force of acceleration

A certain amount of ice ( solid water ) at 0 C is added to a well - insulated container filled with 3 3 g of steam ( gaseous water ) at 1 0 0 C and allowed to come to thermal equilibrium without losing any energy to its surroundinos. The final temperature of the liquid water is 2 0 C . How much energy is released by the "steam" as it cools to 2 0
A certain amount of ice ( solid water ) at 0 C is

There are approximately 3 5 0 0 kcal in Blank _ _ _ _ _ _ of fat tissue. Multiple choice question. 1 ounce 1 kilogram 1 pound 1 gram

A rock weighs 1 0 0 N in air and has a volume of 0 . 0 0 2 5 3 m 3 . What is its apparent weight when submerged in water? The acceleration of gravity is 9 . 8 m s 2 . Answer in units of N . part 2 of 2 If it is submerged in a liquid with a density exactly 1 . 6 times that of water, what will be its new apparent weight? Answer in units of N .
A rock weighs 1 0 0 N in air and has a volume of

A force of P = 9 0 0 N is applied to the smaller cylinder of a hydraulic jack ( Fig . 2 ) . The area a of the small piston is 2 0 cm 2 and the area A of the larger piston is 2 0 0 cm 2 . What load W can be lifted on the larger piston if the pistons are at the same level, The mass density of the liquid in the jack is 1 0 3 k g m 3 .
A force of P = 9 0 0 N is applied to the smaller

In the figure, light initially in material 1 refracts into material 2 , crosses that material, and is then incident at the critical angle on the interface between materials 2 and 3 . The indices of refraction are n 1 = 1 . 5 6 , n 2 = 1 . 3 4 , n 3 = 1 . 1 8 . ( a ) What is angle ? ( b ) If is increased, is there refraction of light into material
In the figure, light initially in material 1

Part 7 of 1 1 - Shapes and Speeds of Pulses The pair observed that when a pulse reaches the boundary between the two ropes where 1 2 , part of the pulse is reflected and inverted, and part is transmitted to the denser rope, and both the transmitted and reflected pulses have amplitudes less than the original pulse. How does Aditya explain to Millie
Part 7 of 1 1 - Shapes and Speeds of Pulses The

Constants Part A When two wires of identical dimensions are used to hang 2 5 . 0 - k g weights, wire A is observed to stretch three times as much as wire B . From this observation, what conclusion can you make about the Young's moduli of these wires? Y A = 9 Y B Y A = 3 Y B Y A = 1 3 Y B Y A = 1 9 Y B
Constants Part A When two wires of identical

A force F ( x ) = ( 3 . 0 / x ) N acts on a particle as it moves along the positive x - axis. ( a ) How much work does the force do on the particle as it moves from x = 2 . 0 m to x = 5 . 0 m ? ( b ) Picking a convenient reference point of the potential energy to be zero at x = , find the potential energy for this force .

The charge stored in a capacitor is directly proportional to the supplied voltage. true or false?

a ) State and explain Newton's Second Law of Motion and discuss its significance in classical mechanics. b ) An electric car of mass 1 5 0 0 kg accelerates uniformly from rest to a speed of 9 0 km / h in 5 seconds. Calculate: i ) The car's average acceleration. ii ) The net force acting on the car during this acceleration.
a ) State and explain Newton's Second Law of

Jasmine is in a spaceship that is traveling at 0 . 8 4 cc . Jasmine holds a phone at a 3 1 angle to take a photo of the surroundings while Heather watches from Earth. What angle does the phone make with the direction of travel that Heather sees standing still on Earth?

It takes Harry 4 4 s to walk from x 1 = - 1 2 m to x 2 = - 5 0 m . What is his velocity? Express your answer in meters per second.
It takes Harry 4 4 s to walk from x 1 = - 1 2 m

Waves with a wavelength matching the resonance of the ear canal are amplified as they travel to the eardrum, making humans more sensitive to frequencies close to the ear canal's resonance. The ear canal has a length of 2 . 5 cm and can be modeled as a tube that is closed on one end and open on the other. What is the fundamental frequency of the

1 . Is the collision elastic or inelastic? Or something else? Why or why not? ( 5 pts ) 2 . Is momentum conserved in an Elastic collision ( 4 pts ) Inelastic collision ( 4 pts ) Why or why not? ( 5 pts ) 3 . Is energy conserved in an Elastic collision ( 4 pts ) Inelastic collision ( 4 pts ) Why or why not? ( 5 pts

What is the induced emf in a 0 . 5 8 0 m rod moving with velocity of 2 . 7 8 m / s perpendicular to a field of 2 . 0 1 0 4 T ?

If vector A A makes an angle of 3 7 3 7 with the x - axis and has a length Ax = 1 2 Ax = 1 2 , what is the length AyAy? Select one: a . 1 2 b . 9 c . 1 5 d . 3

A particle with a charge of 5 . 5 0 nC is in a uniform electric field directed to the left. Another force, in addition to the electric force, acts on the particle so that when it is released from rest, it moves to the right. After it has moved a distance of 9 . 0 0 cm , the additional force has done an amount of work equal to 6 . 6 0 1 0 5 J and

You are the city planner in charge of running a high - efficiency power line from a power station to a new shopping center being built nearby. The power station is located on 1 st St , and the shopping center is on Shopping Ln . The power station is 1 0 miles north of Shopping Ln , and the shopping center is 7 miles east of 1 st St . While the

A 2 7 . 0 - kg child on a 4 . 0 0 - m - long swing is released from rest when the ropes of the swing make an angle of 3 1 . 0 with the vertical. If the actual speed of the child at the lowest position is 2 . 9 0 m / s , what is the mechanical energy lost due to friction

Assume the length of a child's eyeball to be 2 . 1 9 cm . What is the effective focal length of the two - lens system made from a normal a child's cornea and lens when viewing objects far away.

A planet has an orbit 4 times larger than Earth s orbit. The star it is orbiting has twice the mass of our star. How long does it take for this planet to orbit its star? ( A ) q 1 3 2 years ( B ) 3 2 years ( C ) q 1 6 4 years ( D ) 6 4 years ( E ) q 1 2 years ( F ) 2 years

2 3 - 1 Only one of the following statements about an object executing simple 5 pts harmonic motion is true. Select the true statement. [ Note: We will discuss this problem in lecture. ] A . Its velocity is never zero. B . Its acceleration is never zero. C . Its velocity and acceleration are zero at the same time D . Its velocity is zero when its
2 3 - 1 Only one of the following statements

A 1 2 m 1 3 m 1 2 m 1 3 m house is built on a 1 0 cmcm - thick concrete slab. Part A What is the heat - loss rate through the slab if the ground temperature is 8 C C while the interior of the house is 2 2 C C ? Express your answer with the appropriate units. Activate to select the appropriates template from the following choices. Operate up and

An object performing simple harmonic motion has an equation for the displacement from equilibrium x ( t ) = ( 0 . 3 1 m ) cos ( 1 7 0 t + 0 . 1 0 ) What is the amplitude of vibration? Calculate your answer in metres with two digits of precision.

A diver dives from a 3 m board into a 4 m deep pool. If the volume of her lungs is initially 4 . 2 litres, and she reaches the bottom of the pool, what is the volume and temperature of the air in her lungs at that point? Assume that the process occurs adiabatically and that the initial temperature and pressure are 2 0 C and 1 0 5 Pa . Recall that

Parallel rays of monochromatic light with wavelength 5 8 5 nm illuminate two identical slits and produce an interference pattern on a screen that is 7 5 . 0 cm from the slits. The centers of the slits are 0 . 6 4 0 mm apart and the width of each slit is 0 . 4 3 4 mm . If the intensity at the center of the central maximum is 4 . 2 0 1 0 4 W / m 2 ,

Why does the pattern of colors repeat in a thin soap film please use two content related sentences

How many distinct ( n , l , m l ) states of the hydrogen atom with n = 3 are there? A ) 3 B ) 6 C ) 9 D ) 1 2
How many distinct ( n , l , m l ) states of the

What is the minimum period of oscillation of a uniform rod of length 0 . 5 7 0 0 . 5 7 0 m with a moveable pivot point? ( That is , you are free to place the pivot wherever you like such that the period is a minimum. )

A pipe has a maximum height ( H = 2 . 9 9 m ) above the pump then lowers down to a height ( h ) with a flow rate of 0 . 7 2 9 L / s and an output pressure of 1 . 8 2 x 1 0 ^ 5 . When the water enters the pipe, it has a diameter of 2 . 5 8 cm . What is the pressure at the maximum height?

An incredible amount of electrical energy passes down the funnel of a large tornado every second. Measurements taken in Oklahoma at a distance of 9 . 0 0 km from a large tornado showed an almost constant magnetic field of 1 . 5 0 x 1 0 - 8 T associated with the tornado. What was the average current going down the funnel? ( 0 = 4 1 0 7 T m / A )

code class = "asciimath" > Given the displacement vectors vec ( A ) = 3 hat ( ) - 4 hat ( ) + 4 hat ( k ) , vec ( B ) = 2 hat ( ) + 3 hat ( ) - 7 hat ( k ) . Find the magnitudes of the vectors avec ( A ) + vec ( B ) b 2 vec ( A ) - vec ( B )

Part A How many Gy of gamma - ray photons cause the same biological damage as 0 . 1 2 Gy of alpha radiation? Express your answer in grays. dose = Gy Request Answer
Part A How many Gy of gamma - ray photons cause

Which statement about Einstein's theory of relativity is true? A ) It describes how space and time are separate and distinct. ( B ) It relates space to time in different reference frames. ( C ) It requires a strong math background to understand. All of the above
Which statement about Einstein's theory of

A cord is wrapped around the rim of a solid uniform wheel 0 . 2 1 0 mm in radius and of mass 8 . 6 0 kgkg . A steady horizontal pull of 5 0 . 0 NN to the right is exerted on the cord, pulling it off tangentially from the wheel. The wheel is mounted on frictionless bearings on a horizontal axle through its center. Which of the answers in parts ( A

Isothermal expansion of a gas _ _ _ _ _ _ _ _ _ _ its entropy.

A helium - neon laser emits a 2 . 0 - mmmm - diameter laser beam with a power of 1 . 8 mWmW . Part A What is the amplitude of the electric field of the light wave? Express your answer with the appropriate units. View Available Hint ( s ) for Part A Activate to select the appropriates template from the following choices. Operate up and down arrow

At the critical angle, what happens to light as it hits a glass - air boundary?

If the maximum. stress of the bridge described above can withstand without crumbling is 2 . 0 x 1 0 ^ 7 Pa will it crumble because of this temperature increase? Young's modulus for concrete is 2 . 0 x 1 0 ^ 1 0 Pa

A laser beam is incident on two slits with separation d = 0 . 0 3 2 mm . A screen is placed L = 4 . 8 m from the slits. The wavelength of the laser light is = 1 2 5 0 . 1 and 2

A bird is flying over water when it accidentally drops a 3 . 5 kg fish. If the altitude of the bird is 1 0 meters, what is the gravitational potential energy of the fish before it is dropped?

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 6 5 6 nmnm ( red ) and 4 8 6 nmnm ( blue ) . Light from a hydrogen lamp illuminates a diffraction grating with 4 5 0 lines / mmlines / mm , and the light is observed on a screen 1 . 7 mm behind the grating.

Learning Goals: You will be able to: 1 . Make waves with water, sound, and light and see how they are related. 2 . Discuss wave properties using common vocabulary. 3 . Explain how changing the frequency and amplitude affects the characteristics of the wave. 4 . Design an experiment to measure the speed of the wave.

When light enters an unknown medium, it slows down to 2 . 7 2 x 1 0 8 m / s . What is the index of refraction for this material?

Current Attempt in Progress Your answer is partially correct. At a certain harbor, the tides cause the ocean surface to rise and fall a distance ( from highest level to lowest level ) in simple harmonic motion, with a period of 1 1 . 6 h . How long does it take for the water to fall a distance 0 . 2 5 0 d from its highest level? Number Unit
Current Attempt in Progress Your answer is

Question 8 ( 1 point ) A friction force always acts to the contact surface. At the angle of static friction Parallel A t 4 5 Normal
Question 8 ( 1 point ) A friction force always

A spring is compressed 1 . 0 cm . How far must you compress a spring with twice the spring constant to store the same amount of energy? A . 0 . 5 cm B . 0 . 7 1 cm C . 1 . 0 cm D . 2 . 0 cm E . - 0 . 5 cm
A spring is compressed 1 . 0 cm . How far must

A uniform solid disk with a mass of 3 3 . 1 kg and a radius of 0 . 3 8 7 m is free to rotate about a frictionless axle. Forces of 9 0 . 0 and 1 2 5 N are applied to the disk, as the figure illustrates. Taking the clockwise direction to be the negative direction, what is ( a ) the net torque produced by the two forces and ( b ) the angular
A uniform solid disk with a mass of 3 3 . 1 kg

Suppose the blades of a wind turbine generator speed up in a clockwise direction. What is the sign of the angular velocity of the blades?

There is relatively little empty space between atoms in solids and liquids, so that the average density of an atom is about the same as matter on a macroscopic scale - approximately 1 0 3 k g m 3 . The nucleus of an atom has a radius about 1 0 - 5 that of the atom and contains nearly all the mass of the entire atom. ( a ) What is the approximate
There is relatively little empty space between

A particle with a charge of 2 . 8 0 1 0 8 C is moving with an instantaneous velocity of magnitude 3 5 . 5 km / s in the x - y plane at an angle of 5 5 counterclockwise from the + x axis. What is the direction of the force exerted on this particle by a magnetic field with magnitude 2 . 0 0 T in the x direction?

Describe function of an Astro rocket

A cylinder has magnetic flux of magnitude 1 4 Wb due to a magnetic field directed into its bottom end and a magnetic flux of 2 5

A girl standing on the ground observes a rocket ship move past her at half the speed of light. Compared to the rocket's length at rest, she sees the rocket's length as _ _ _ _ _ _ . Group of answer choices shorter longer the same length.

A block with mass m = 5 . 9 kg is attached to two springs with spring constants kleft = 2 8 N / m and kright = 5 6 N / m . The block is pulled a distance x = 0 . 2 6 m to the left of its equilibrium position and released from rest. 1 ) What is the magnitude of the net force on the block ( the moment it is released ) ? N Submit Your submissions: 2

A real coil with a 2 - resistance and 1 0 0 . inductance is connected in series to a 8 . 0 resistor. This resistor and inductor are connected in series with a real battery with an internal resistance of 0 . 5 0 such that at a given time 0 , the current is 5 . 0 0 and it is increasing at a rate of 1 0 . 0 / .

What is the velocity of a 9 0 3 - kg car initially moving at 3 0 . 3 m / s , just after it hits a 1 5 3 - kg deer initially running at 1 2 . 3 m / s in the same direction? Assume the deer remains on the car. Give your answer in m / s .

A beam with a length of 1 . 1 meters and mass of 3 5 kg is suspended across a pair of scales. If the beam's mass is distributed uniformly, and a block with a mass of 2 0 kg is placed on the beam at a position of 1 . 2 5 meters. a . What does the rightmost scale read ( in N ) ? b . What does the leftmost scale read ( in N ) ?

In Fig . 3 0 . 1 1 in the textbook, suppose that EE = 6 9 . 0 VV , RR = 2 1 0 and LL = 0 . 1 6 0 HH . With switch S 2 S 2 open, switch S 1 S 1 is left closed until a constant current is established. Then S 2 S 2 is closed and S 1 S 1 opened, taking the battery out of the circuit. c . What is the potential difference between points b and c at tt =

A space probe is fired as a projectile from the Earth's surface with an initial speed of 1 . 7 2 1 0 4 m / s . What will its speed be when it is very far from the Earth? Ignore atmospheric friction and the rotation of the Earth. m / s

What is the wavelength ( in m ) of a 1 . 0 6 1 0 - 8 eV photon ? ( b ) Find its frequency in hertz. Hz ( c ) Identify the type of EM radiation.

The brick wall ( of thermal conductivity chen ( ec 4 4 6 9 3 ) Semester I Review stanescu ( 2 6 5 0 8 ) 5 1 . 1 1 W / m C ) of a building has dimensions of 5 . 8 m by 5 m and is 2 3 cm thick. How much heat flows through the wall in a 1 4 . 4 h period when the average inside and outside temperatures are, respectively, 2 4 C and 3 C ? Answer in

Light of wavelength 0 . 1 7 nm creates a first order interference maximum when it is incident on a crystal at a grazing angle of 3 4 . 6 from the surface. Determine the interatomic spacing of the Bragg planes of the crystal. Answer in nanometers.

Now you have a nucleus with 1 0 protons at x = 7 . 1 Angstroms on the x - axis. How much work would it take to bring in ANOTHER nucleus with 1 1 protons from 1 m away and place it at y = 6 . 5 Angstroms on the y - axis? Question 1 0 options: 9 8 . 0 eV 1 4 0 . 0 eV - 2 4 . 3 eV 1 6 4 . 4 eV

A 1 5 - kg child slides down a 2 . 5 m - high playground slide. She starts from rest and her speed at the bottom is 3 . 0 m / s . What is the total change in the thermal energy of the slide and the seat of her pants?

In 1 9 6 4 , the temperature in the Siberian village of Oymyakon reached - 7 1 degrees Celsius. What is this temperature on the Fahrenheit scale? 4 . Calculate the minimum amount of energy, in joules, required to completely melt 1 3 0 grams of silver initially at 1 5 degrees Celsius.

1 0 . ( 3 marks ) An electron moving in the positive x direction experiences a magnetic force in the positive z direction. If Bx = 0 , what is the direction of the magnetic field? a ) tz d

Astronaut Jill leaves Earth in a spaceship and is now traveling at a speed of 0 . 2 8 0 c relative to an observer on Earth. When Jill left Earth, the spaceship was equipped with all kinds of scientific instruments, including a meter stick. Now that Jill is underway, how long does she measure the meter stick to be ? 1 . 0 0 m 1 . 2 8 m 0 . 9 6 0 m
Astronaut Jill leaves Earth in a spaceship and is

The pulmonary artery, which connects the heart to the lungs, has an inner radius of 2 . 2 mm and is 9 . 1 cm long. If the pressure drop between the heart and lungs is 3 8 0 Pa , what is the average speed of blood in the pulmonary artery? Your response differs from the correct answer by more than \ ( 1 0 \ % \ ) . Double check your calculations. \
The pulmonary artery, which connects the heart to

VI . [ LO 5 1 . 8 ] A container is filled with water. A hole is then punched in the side of the container, 2 0 cm below the top of the water. If the size of the hole is very small compared to the size of the container, what is the speed of the water as it flows out of the hole?
VI . [ LO 5 1 . 8 ] A container is filled with

6 . 1 9 * Show that Eq . ( 6 . 3 6 ) , relating the object and image distances measured from the vertices of a lens, reduces to Gauss's Formula [ Eq . ( 5 . 1 7 ) ] for thin lenses. Remember that when s o > 0 , d 1 O 0 and when s i > 0 , d I 2 > 0 . Figure 6 . 9 Image geometry. Note that d 0 is negative here, whereas d l is positive. And so the
6 . 1 9 * Show that Eq . ( 6 . 3 6 ) , relating

1 . What is torque? Is it a vector quantity? What is the SI unit of torque?

Light of wavelength 5 7 5 nm falls on a double - slit and the third order bright fringe is seen at an angle of 6 . 5 . What is the separation between the double slits? Light of wavelength 5 7 5 nm falls on a double - slit and the third order bright fringe is seen at an angle of 6 . 5 . What is the separation between the double slits? 1 5 m 1 0 m 5

Current Attempt in Progress You push a 1 . 8 kg block against a horizontal spring, compressing the spring by 1 8 cm . Then you release the block, and the spring sends it sliding across a tabletop. It stops 7 7 cm from where you released it . The spring constant is 3 3 0 N m . What is the coefficient of kinetic friction between the block and the
Current Attempt in Progress You push a 1 . 8 kg

a latent heat for the water / steam transition is 2 2 5 6 kJ / kg , i . e . , to convert 1 kg of water into steam requires 2 2 5 6 kJ

A 3 0 . 0 nC point charge is at the center of a 5 . 5 0 m 5 . 5 0 m 5 . 5 0 m cube. What is the electric flux through the top surface of the cube ?
A 3 0 . 0 nC point charge is at the center of a 5

Explain polarization of light and ifs types in detail

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