If the Sun is 4.6 billion years old, how many times has it orbited the Milky Way galaxy?

Q: Two people carry a heavy electric motor by placing it on a light board 2.00 m long. One person lifts...

A: (a) The vertical forces acting on the board by applying equilibrium condition, FL+FR=W Use the given...

Q: What are the limiting factors of superconductivity? Define and distinguish the two different types o...

A: Normally, materials theoretically exhibit zero electrical resistance at the absolute zero temperatur...

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: The Sun has a mass of 1.99 × 1030 kg and a radius of 6.96 × 108 m. 1) Calculate the acceleration due...

A: 1. The expression for acceleration due to gravity is, gSun=GMSunrSun2        (I)            G=gravit...

Q: A 25.0 kg box of textbooks rests on a loading ramp thatmakes an angle a with the horizontal. The coe...

A: given : m=25 Kg μk=0.25μs=0.35 To find: Minimum angle at which box starts to slip θ.        

Q: answer Q 4

A: Given, A block is on the pheriphery of the platter  

Q: The “lead” in pencils is a graphite composition with a Young’s modulus of about 1 • 109 N/m2. Calcul...

A: Young's modulus is given as  Y = stressstrain stress = forcearea , strain = change in lengthoriginal...

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: What is the maximum possible energy for a Compton-backscattered x ray (θ = 180°)? Express your answe...

A: Given: a) Express your answer in terms of, the wavelength of the incoming photon. b) Evaluate numeri...

Q: 1. Make a sketch of a friction block sliding down the inclined track. Draw and label vectors to indi...

A: Hi. Since you have posted a question with multiple parts and not specified which parts you want us t...

Q: What is the farthest distance at which a typical “nearsighted” frog can see clearly in air? (a) 12 m...

A:  Given: The medium is air. The frog is nearsighted.

Q: Part A - A mortar positioned on the valley floor fires a shell that hits the top edge of a steep can...

A: The equation of motion for a projectile fired at angle θ above the horizontal is given by Where x, ...

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: How do you do this one? I know you will multiply sin(90-15degrees), but why don't you use sin(15)? I...

A: The magnetic dipole moment of the coil can be determined as below, The direction of the dipole mome...

Q: A brick is dropped (zero initial speed) from the roof of abuilding. The brick strikes the ground in ...

A: From kinematic relation v=u+at=0-gt

Q: The minimum stopping distance for a car traveling at a speed of 30 m/s is 60 m, including the distan...

A: Part (a) Given: The initial velocity of car is u=30 m/s. The distance covered by car is d=60 m. The...

Q: The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a cylindrical tu...

A: Given, Radius = 29 ft force = 20.0 mg

Q: A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 65.0 kg woma...

A: The net force including the Buoyant force, weight of the ice and weight of the woman should be zero....

Q: A geosynchronous Earth satellite is one that has an orbital period of precisely 1 day. Such orbits a...

A: The expression for the Kepler’s third law can be written as T2=4π2GMr3T2∝r3                         ...

Q: 3. With the aid of a string, a gyroscope is accelerated from rest to 32rad / s in 0.40 s.(a) What is...

A:

Q: The operating temperatureof a tungsten filament in an incandescent light bulb is 2450 K, and itsemis...

A: Given: The temperature of the filament T = 2450 K. The emissivity of the filament ε = 0.35. The Pow...

Q: A fairground ride (The Gravitron) spins its occupants inside a cylinder-shaped container. A child on...

A: Part (a) When the ride moves at low speed the child remain standing on the floor of the fairground r...

Q: It has been suggested that rotating cylinders about 19.5 mi long and 4.67 mi in diameter be placed i...

A: Here, Radius of cylinder = (2.335 mi)(1609 m)/ 1mi = 3757.015 m  

Q: define the energy and name three of its forms

A: Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electr...

Q: What has the larger kinetic energy, a 10g bullet fired at 500m/s or a 10Kg bowling ball sliding at 1...

A: E=0.5mv2 Kinetic energy of bullet. E=0.510 g10-3 kg1 g500 m/s2=1250 J

Q: A free neutron can decay into a proton, an electron, and aneutrino. Assume the neutrino’s mass is ze...

A: Total kinetic energy is, KE=mnc2-mpc2+mec2+mνc2

Q: Part B

A:

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 1000 Kg sports car accelerates from 0 to 30m/s in 10 s. What is the average power of the engine?

A: P=Ef-Eit=0.5mv2f-v2it

Q: In the first stage of a two-stagerocket, the rocket is fired from the launch pad starting from rest ...

A:

Q: A fluid has velocity components u=2(x²-y²) m/s and V=-4xy m/s, where x and y are in meters.

A: Given: The velocity components are u=2(x2-y2) ms-1 and v=-4xy ms-1. Pressure at point B(3 m, 2 m) is...

Q: Part B What is the electric field for 4 cm <r< 5 cm? Give your answer in terms of the variable r.

A: (Part B) Given: The line charge density of the wire is 3 nCm. The line charge density of the metalli...

Q: 2) A strap inclined upward at 45° angle Before: After: Known To 20 N 6 = 45° d-100 m pulls a suitcas...

A: The work done by force F on an object is given by Where F = Force on the object, S = displacement o...

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: (a) Compute the maximum magnetization of a bulk sample of iron, assuming perfect alignment of the sp...

A: Given: Explain the following: (a) Compute the maximum magnetization of a bulk sample of iron, assumi...

Q: a) Find the magnitude of the gravitational force between a planet with the mass 7.50 x 10^24 Kg and ...

A: Given: The mass value of the planet is 7.50 x 10^24Kg The mass value of the moon is 2.70 x 10^22 Kg ...

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: Energy is to be stored in a 70.0 kg flywheel in the shape of a uniform solid disk with radius R = 1....

A: Given: The mass of the flywheel m = 70 kg. The radius of the disk R = 1.2 m. The acceleration of th...

Q: A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressureof gas is me...

A:   Given, P1=255×103Pa, V1=10.0 L, V2=4.70 L   P1V1=P2V2⇒P2= P1V1V2=(255×103Pa)×10.0 L4.70 L⇒P2=542.5...

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: Prove that dσ x νφ Jas pdr

A: Given  Prove that  

Q: The nuclide 189F (β emitter, t1/2 = 109.8 min) is a useful radioactive tracer for human consumption....

A: Given: The half-life of F918 is 109.8 min. The activity of the sample in the start is 1.2×107 Bq. In...