We want to hang a thin hoop on a horizontal nail and have the hoop make one complete small-angle oscillation each 2.0 s. What must the hoop’s radius be?

Q: Consider a cylindrical cable with a hanging weight suspended from it. 1) When the mass is removed, t...

A: 1) Young's modulus is, Y=Fl0A∆l=mgl0πr2l1-l0=55 kg9.8 m/s24.58 mπ0.045 m25.27 m-4.58 m=5.62×105 N/m2

Q: A uniform disk with radius R = 0.400 m and mass 30.0 kg rotates in a horizontal plane on a frictionl...

A: Given: A uniform disk with radius R = 0.400 m and mass 30.0 kgrotates in a horizontal plane on a fri...

Q: The sun radiates energy at a rate of 3.9 x 1026 W. (a) At what rate is the sun losing mass? (b) At t...

A: The relativistic energy and mass is related by E=mc2 The rate of radiant energy is p=Et=mc2t Rearran...

Q: (a) In a liquid with density 1300 kg/m3, longitudinal waves withfrequency 400 Hz are found to have w...

A: Part (a) Given: The density of liquid is ρl=1300 kg/m3. The frequency of wave is f=400 Hz. The wave...

Q: A certain heat engine operating on a Carnot cycleabsorbs410 J of heat per cycle at its hot reservoir...

A: Given data: The heat absorbs from the hot reservoir is Qh=410 J. The temperature of the hot reservo...

Q: I know that for the first portion the constant force is F=176.714N. I need help finding r for the se...

A: Using 2nd equation of motion in rotational motion: ωf=ωi+αt3.14=0+2α⇒α=1.57 rad/s2 Moment of inertia...

Q: In a photoelectric-effect experiment, the stopping potential is 1.37 V if the light used to illumina...

A: Part-a Given: The stopping potential Vs = 1.37 V. The wavelength of the light λ = 475 nm.

Q: The elevator car, including passengers, has a mass of 1800 kg. Each floor of the building is separat...

A: (a) The total energy will be equal to the work done by the cables. When the elevator car is accelera...

Q: A liquid lies on top of the horizontal surface of a block of glass. A ray of light traveling in the ...

A: Given: Speed of light in glass,v=1.85×108m/s Wavelength of the light in glass=λg=365 nm Frequency of...

Q: D. The top-view diagram at below illustrates two point-sources, S1 and S2 that are a distance d apar...

A: D. Solution:   As per the given Figure,   The below diagram can be drawn to find the smallest and la...

Q: 1. A car of mass 1310 kg enters a banked turn with a banking angle of 9.51° and radius of 435 m at a...

A:

Q: The inside of an oven is at a temperature of 200C 1392F2. Youcan put your hand in the oven without...

A: When the hand is put inside the oven, there are two possible modes of heat transfer namely conductio...

Q: Answer each of the following relative to the center of the wheel. F = unit v r = unit v unit v %3D %...

A: Force is given as 3N thus F= 3N if r is radius of wheel then  r = 50 cm ( 5 grid long ) r = 0.50 m  

Q: 1.Using these three relationships, and assuming mass is a constant... F = ma à = do dt mu = p %3D wr...

A:

Q: Air containing 30 percent oxygen passes slowly into a 3- gallon flask initially filled with pure oxy...

A: Air contains 30% oxygen. Initially there is 3-gallon O2. Let the rate be r. Then for 6 gallon air wi...

Q: Two protons (each with mass mp = 1.67 x 10-27 kg) are initially moving with equal speeds in opposite...

A: Energy before the collision is, γ2mprotonc2 energy after collision is 2mprotonc2+mpionc2 as energy b...

Q: If a proton and an electron are released when they are 2.0 * 10^-10 m apart (a typical atomic distan...

A: The force acting between proton and electron  separated by a distance of  according to Coulomb’s law...

Q: A rectangular Plate is rotating with a constant angular speed about an axis that passes perpendcular...

A: Centripetal accelaration=radius×(angular speed)2 Given , aA=3.95(aB)⇒(L12+L22)ω2=3.95×L1×ω2⇒L12+L22=...

Q: Determine the direction of the acceleration for an object rotating in a circle at a constant speed. ...

A: Introduction: Acceleration is a vector quantity that is defined as the rate of change of velocity. 

Q: An object is 18.0 cm from the center of a spherical silvered-glass Christmas tree ornament 6.00 cm i...

A: Given: The distance of object from tree is d=18.0 cm. The diameter of the lens is D=6.00 cm. The f...

Q: An interference-diffraction figure through a double slit is observed with light of wavelength 550 nm...

A: We know that interference maximum occurs when  dsinθ=mλ.............1Where d is seperation between t...

Q: At low temperatures, copper has a free-electron concentration n = 8.45 *1028 m-3. Using the free-ele...

A: The fermi energy can be written as EF=h22m3N8πV2/3                                      1 The densit...

Q: Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10" J•s. In that u...

A: Given information: The value of planks constant (h) = 6.62607×1011 J.s Now, let us consider the case...

Q: Before: After: 4) Work Energy Theorem: A two man bobsled has a mass of 390Kg. Starting from rest, th...

A: W=Kf-KiFd=12mv2f-v2i

Q: A person on horseback is on a drawbridge which is at an angle ? = 20.0° above the horizontal, as sho...

A:

Q: A certain laser emits light of wavelength 632.8 nm. What is the frequency of radiation and energy di...

A: For radiation of light, the frequency and wavelength are related as Where f = frequency of radiatio...

Q: The bandgap of a bulk semiconductor is 1.55 eV and the effective mass of the exciton is 9.109×10-32 ...

A:

Q: An engineer trying to determine whether her crane will tip over when attempting to lift a 33K load. ...

A: From the figure, load is 25 ft away from the pivot point.  arm length of crane:  252+302 =39.051 ft ...

Q: *PLEASE SOLVE #6* Make a sketch of a wood block sliding down the inclined track.  Draw and label ve...

A: In the above case , the Normal force N is given by N=mgcosθ. If the angle of inclination remains unc...

Q: As a city planner, you receive complaints from local residents about the safety of nearby roads and ...

A: From work-energy principle W=ΔKfΔx=12mv2μmgΔx=12mv2Δx=v22μg

Q: I'm wondering how to do this: A 0.00600-kg bullet traveling horizontally with speed 1.00 103 m/s str...

A:

Q: Prove that dσ x νφ Jas pdr

A: Given  Prove that  

Q: A tractor of mass 5.40 tonne pulls a 1.40-tonne crate up a hill with a slope angle of 12.0° above th...

A: Part-a Given: The mass of the tractor M = 5400 kg. The mass of the crate m = 1400 kg. The angle of ...

Q: A primitive yo-yo has a massless string wrapped around a solid cylinder with mass M and radius R. Yo...

A: Given information: The radius of the yo-yo is, R The mass of the yo-yo is, M The descended height, h...

Q: A wildlife photographer uses a moderate telephoto lens of focal length 135 mm and maximum aperture f...

A: Part (a) Given: The focal length of lens is f=135 mm. The maximum aperture of lens is D=f4.00=33.75...

Q: *I WOULD LIKE #5 and #6 SOLVED* 1. Make a sketch of a friction block sliding down the inclined track...

A: The force diagram of the block is shown below: m is the mass of the block, g is the acceleration du...

Q: A solid uniform sphere and a thin-walled, hollow spherehave the same mass M and radius R. If they ro...

A: GIven: The mass of the solid uniform sphere and a thin-walled, hollow sphere is M. The radius of the...

Q: The range of the nuclear strong force is believed to be about 1.2 x 10-15 m. An early theory of nucl...

A: Given: The range of nuclear force is d=1.2×10-15 m. The measure value of mass is m0=135 MeV/c2. Th...

Q: A particle of mass 3m is located 1.00 m from a particle of mass m. (a) Where should you put a third ...

A: (a) The net gravitational force at mass M due to mass m and 3m is zero. The expression to solve for ...

Q: As the Moon moves around the Earth: a) The drag force on the Moon keeps it from getting too far awa...

A: The gravitational attractive force between the moon and Earth which provides the sufficient centripe...

Q: Considering the problem, do not worry about the graphs. Just need help with the math, please.

A:

Q: The wheel of a stationary exercise bicycle at your gym makes one rotation in 0.670 s. Consider two p...

A: (a) speed of a point on the wheel v=rω=rθt

Q: A flat (unbanked) curve on a highway has a radius of 170.0 m. A car rounds the curve at a speed of 2...

A: (a) The force due to frictional force is fs=μsmg From Newtons second law, Fnet=mar The radial accele...

Q: C part only

A: (c) Let l and d denote the total distance from the object to the screen and the given separation bet...