A crate is sitting on a horizontal surface where the coefficient of static friction is 0.60. A worker pushes horizontally on the crate, which has a mass of 45 kg. The crate does not move, and there are no other forces acting on it. Which of the following statements is true?

Q: A large wooden turntable in the shape of a flat uniformdisk has a radius of 2.00 m and a total mass ...

A: Let r denotes the disc radius, M denotes the mass of the turntable, m denotes the parachutist mass, ...

Q: An astronaut, whose mission is to go where no one has gone before, lands on a spherical planet in a ...

A: the displacement of the rock is, s=12g't21.90 m=12g'0.480 s2g'=16.5 m/s2

Q: Use the data of Table 7.3 to find the point between Mercury and the Sun at which an object can be pl...

A: The useful data from the table are Mass of mercury mm=3.18 ✕ 1023kg Distance between sun and mercury...

Q: In a laboratory, light from a particular spectrum line of helium passes through a diffraction gratin...

A: Condition for diffraction maximum for the light in the laboratory and from the galaxy dsinθ=mλ      ...

Q: A block of mass m = 19.5 kg rests on an inclined plane with a coefficient of static friction of μs =...

A:

Q: In your new engineering job, you are requested to design a loop which will provide a maximum magneti...

A: The magnetic field at the center of the circular loop is given by Where N = number of turns of the ...

Q: How many nanoseconds does it take light to travel 1.00 ft in vacuum? (This result is a useful quanti...

A: The speed of light in vacuum is,3×108m/s Velocity of light is distance traveled per time, V=dt      ...

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 hoop, a uniform solid cylinder, a spherical shell, and a uniform solid sphere are released from re...

A: Given: The bodies are hoop, a uniform solid cylinder, a spherical shell, and a uniform solid sphere...

Q: The gas-giant planet Rom (mass 5.7⨯1026 kg) goes around the star Galla (mass 2.0⨯1030 kg) in a circu...

A: Part (i) The centripetal force for circular motion of Rom around Galla is provided by, Here M is th...

Q: Use the known values of ϵ0, h, m, and e to calculate the following to fi ve signifi cant fi gures: hc (...

A: Given: The constants ε0, h, m and e. Introduction: Vacuum Permittivity is the capability of an elect...

Q: The energy of an electron at speed v in special relativity theory is mc2(1−v2/c2) −1/2, where m is t...

A: According to the question,

Q: please very soon full explanation A 4 kg weight hanging from a spring and stretches that spring 0.2 ...

A: For the different nature of damping the condition is given by eqaution c2-4mk where c is damping coe...

Q: Problem 5 If an object is thrown from ground level with an initial velocity v and an elevation angle...

A: Given that the speed can deviate upto 1 m. So, v=18±1 m/s α=π4±π12 lmean=(18)2sin(π2)9.8 =33.6 m    ...

Q: A solid uniformball rolls without slipping up a hill(Fig.). At the top of the hill,it is moving hori...

A: Given: The initial velocity of the ball is 25.0 ms-1. Introduction: The mechanical energy of a bowli...

Q: 3. Two coaxial conducting cylindrical shells have equal and opposite charges. The inner shell has ch...

A: Given data: The inner shell has charge +q. The inner shell has an inner radius a. The outer shell h...

Q: *PLEASE SOLVE #1, #2, and #3* Make a drawing of the path of an object in circular motion at constan...

A:

Q: A raindrop of mass m and speed v collects water as it falls through a cloud. Show that, neglecting a...

A: Newton's second law states that rate of change of momentum is equal to force applied. While the rain...

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: A flask of ammonia is connected to a flask of an unknown acid HX by a 1.30  cm glass tube (where "X"...

A: Solution:   Given that,   Length of the Glass Tube (L)=1.30 m =130 cm Distance travelled by the Ammo...

Q: A hammer with mass m is dropped from rest from a height h above the earth’s surface. This height is ...

A: In this case Energy should be conserved i.e. Total initial energy is equal to total final energy T.E...

Q: Discuss whether this statement is correct: “In the absence of air resistance, the trajectory of a pr...

A: Paths of projectiles near earth's surfaces are the portions of ellipse. When the projectile's ellipt...

Q: Whaat is meant by temporal and spatial coherence and why are they necessary condition for interferen...

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: 200.0 mL of a 0.830 M solution of KCl is diluted to 600.0 mL. What is the new concentration of the s...

A: V1C1=V2C2C2=V1C1V2

Q: Find the tangential acceleration of a person standing 9.5m from the center of a spinning carousel th...

A: The angular acceleration is 0.15rad/s2, and the radius of circular path is 9.5 m. The relation betwe...

Q: A typical adult human has a mass of about 70 kg. (a) What force does a full moon exert on such a hum...

A: (a) The expression for gravitational force is, Fg=GmM r2      (I)            G=gravitational constan...

Q: An old car with worn-out shock absorbersoscillates with a given frequency when it hits a speed bump....

A: The period of oscillation for a mass which performs simple harmonic motion, T=2πmk The period of osc...

Q: When an object oscillating on a horizontalspring passes through its equilibrium position, its accele...

A: The direction of the acceleration of the bob of an oscillating simple pendulum when passes from left...

Q: Find the most probable radius for the electron of a hydrogen atom in the 1s and 2p states.

A: 1s state corresponds to n =1 and l =0. Radial wavefunction is, R10=2a03e-r/a0 Probability density is...

Q: On July 15, 2004 NASA launched the Aura spacecraft to study the earth’s climate and atmosphere. This...

A: Given: Orbit height=705 km 

Q: It has been proposed to use large inductors as energy storage devices. (a) How much electrical energ...

A: (a) electrical energy E=Pt=150 W24 h3600 s1 h=12.96×106 J≈13×106 J

Q: A firehose must be able to shoot water to the top of a building 28.0 m tall when aimed straight up. ...

A: The flow rate remains constant and the equation can be written as Q=v0AQ=v0πd24                     ...

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: A ball starts from rest and rolls down a hill with uniform acceleration, traveling 200 m during the ...

A: Given: The distance covered during second 5.0 s of motion is s2=200 m. The formula to calculate th...

Q: A 15.0 kg solid gold statue is raised from the sea bottom.What is the tension in the hoisting cable ...

A: Given information: The mass of the gold statue, m=15.0 kg  

Q: A typical diameter of a nucleus is about 10-14 m. Use the infinite square-well potential to calculat...

A: Infinite potential well from figure potentialV=0   ,0<x<L∞ elsewhere Time dependent Schroding...

Q: If you could keep utterly motionless, your de Broglie wave- length would be infinite. As soon as you...

A: Hi. Since you have posted a question with multiple subparts and not specified which subparts you wan...

Q: Consider a spacecraft’s power source consisting of 210Po, which emits a 5.3-MeV alpha particle, t1/2...

A: Part (a) Given: The energy of alpha particle is E=5.3 MeV. The half life of polonium is t1/2=138 da...

Q: A mass M is at rest on a tilted tabletop, tied to a string which is tied to a second mass m that han...

A: When the block is about to start  friction will be maximum and the forces on mass M will be balanced

Q: Some sliding rocks approach the base of a hill with a speed of12 m>s. The hill rises at 36° above...

A: Consider one of the rocks and let its mass be m. The diagram of the rock with the forces acting on i...

Q: 1. Convert the following angles to radians: a. 25° b. 35° C. 128° d. 270°

A: For 25  Radian = 25×pi /180 = 5 pi/ 36  For 35  = 35× pi /180 = 7 pi/ 36    

Q: The radius of the orbit of a moon of a given planet is equal to twice the radius of that planet. Den...

A: The time period t taken by the moon to complete one orbit of the earth is given by: t=2πr32GM .........

Q: A photon traveling in air has a wavelength of 500 nm, and a free electron has a de Broglie wavelengt...

A: Given data: The wavelength of the photon is λ1=500 nm. The de Broglie wavelength of the free electr...

Q: List some of the problems related to the magnetic force?

A: Magnetic field exerts  force on  charged particle in motion and it is shown as  F=q(v×B)

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: Please read all directions and answer correctly   In a loop-the-loop ride a car goes around a vertic...

A:

Q: Find the position of the center of mass of the system of the sun and Jupiter. (Since Jupiter is more...

A: The center of mass from the center of the Sun is μ=msrs+mjrjms+mj The orbital radius of the Sun is 0...