In a photoelectric-effect experiment, the photocurrent i for large positive values of VAC has the same value no matter what the light frequency f (provided that f is higher than the threshold frequency f0). Explain why

Q: Differential Equations Please answer one of the two questions please step by step.  TYPO; PART E SUP...

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Q: If two spinning objects have the same angular momentum, do they necessarily have the same rotational...

A: Angular momentum of the object is the momentum because of the objects rotational motion. Angular mom...

Q: An electric fan spinning with angular speed of 12rad/s has a kinetic energy of 4.1 Joules what is th...

A: Given angular speed ω= 12rad/s And its kinetic energy k=4.1J Let's assume its moment of inertia is I...

Q: A window cleaner is pulling himself up to a pulley that consists of two disks welded together as sho...

A: The net force acting on the window cleaner is as follows: Fnet=maF+T-mg=maT=ma+mg-F                 ...

Q: A therapist tells a 74 kg patient with a broken leg that he must have his leg in a cast suspended ho...

A: Here, for fractured leg thigh be the first particle, lower leg to be second particle and caste is co...

Q: A 5000 kg spacecraft is in a circular orbit 2000 km above the surface of Mars. How much work must th...

A: Given: The mass of spacecraft is m=5000 kg. The radius of circular orbit is rc=2000 km. The radius ...

Q: An electron is confined between two impenetrable walls 0.200nmapart. Determine the energy levels for...

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Q: Consider the following velocity functions. In each case, complete the sentence: The same distance co...

A: Given: The function of velocity with respect to time vt=125t+2t2   0≤t≤5.

Q: A specimen of oil having an initial volume of 600 cm3 is subjectedto a pressure increase of 3.6 * 10...

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Q: Validate both sides of divergence theorem if vector field A = 10e-2(pa, + a,) Where closed surface i...

A: Given: The vector field is given as

Q: What is the difference in the interference patterns formedby two slits 10-4 apart as compared to a d...

A: The expression for diffraction is sinθ=mλD The condition for interference maxima is sinθ=mλd The exp...

Q: A 49.0 kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diamete...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: Problem 2 (Estimating the Damping Constant). Recall that we can experimentally mea- sure a spring co...

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Q: Q8: Two packages at UPS start sliding down the 20 degree ramp shown in Figure. Package A has a mass ...

A: The free-body diagram of the package A is given below, Here, m denotes the mass of the box A, N den...

Q: A spaceship travels to a star 95 light years away at a speed of 2.2 E 8 m/s. How long does it take t...

A: (a) As measured from earth, the time taken for the spaceship to reach the star is; Δt=ΔxvΔt=95 ly2.2...

Q: Cart A has a mass of 4.7 kg and Cart B has a mass of 1.1 kg.  Before a collision, Cart A was moving ...

A: When there is no net external force acts on the system then the total linear momentum of the system ...

Q: Q5:In Fig, a slab of mass m1 =40 kg rests on a frictionless floor, and a block of mass m2 =10kg rest...

A: Given slab has mass m1=40kg, And block has mass  m2=10kg Coefficient of static friction between bloc...

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: Q5

A: Given, B is the magnetic field. A be defined as the cross-sectional area of the loop, and θ be defin...

Q: A loop of wire in the shape of a rectangle of width w and length L and a long, straight wire carryin...

A: (a) Given: The width of the rectangle is w. The length of the rectangle is L. The distance between t...

Q: When the velocity v of an object is very large, the magnitude of the force due to air resistance is ...

A: The net force acting on the shell can be expressed as; Fnet=-Fgrav-Fairmdvdt=-mg-0.1v2dvdt=-g+0.1mv2...

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: An egg is released from rest from the roof of a building and falls to the ground. Its fall is observ...

A: Given: An egg that gets released from rest from the roof of a building and falls to the ground. The ...

Q: 8. A conical pendulum is formed by attaching a 200 g ball to a 1.0-m-long string, then allowing the ...

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Q: A booster rocket on a satellite that is in a circular oribit around Earth fires suddenly, and it is ...

A: The equation for new energy can be given by, E2=U2+K2E2=UR+12mvt2+vr2 Here, vt is the tangential vel...

Q: If a projectile is fired straight up from the earth’s surface, what would happen if the total mechan...

A: Given: In a projectile, mainly two energies prevail during its path, namely kinetic energy and poten...

Q: You apply equal torques to two different cylinders. Cylinder 1 has a moment of inertia twice as larg...

A: The expression for the kinetic energy acting on the cylinder is as follows: E=12Iω2                 ...

Q: A machine part rotates at an angular speed of 0.32 rad/s; its speed is then increased to 2.6 rad/s a...

A: Solution:   Given Values, Initial angular speed (ω0)=0.32 rad/sFinal angular speed (ω)  =2.6 rad/sAn...

Q: Water enters a house (Fig. ) through a pipe with an inside diameter of 2.0 cm at an absolute pressur...

A: Given: The inside diameter of pipe d1 = 2 cm. The diameter of second pipe d2 = 1 cm. The absolute p...

Q: Suppose a ray strikes the left face of the prism in Fig. 23–64 at 45.0° as shown, but is totally int...

A: Apply Snell’s law, nasin45°=npsinθ2npsinθ2=sin45°           ..........1

Q: Power output vs time graph for a 2100 kg car starting from rest is given below .35% of the power out...

A: At t=18 s , the power is 20000 W. out of these only 35% or 0.35 times the power is converted to do u...

Q: A hollow cylindrical shell of length L and radius R has charge Q uniformly distributed along its len...

A: Surface charge density is, σ=Q2πRL Consider a small element in the form of a ring of thickness dl at...

Q: What is a Newtonian fluid?

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Q: (II) Two first-order spectrum lines are measured by a 9650-slit/cm spectroscope at angles, on each s...

A: Average first order angle. θ=θ1+θ22=26°38'+26°18'2=26°28' Use the diffraction condition mλ=1Nsinθ1λ=...

Q: This is under Kinematics. Free-fall.

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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: Question in the attachments

A: The expression for the magnetic force is as follows: F→=qv→×B→                                      ...

Q: A woman with mass 50 kg is standing on the rim of a largehorizontal disk that is rotating at 0.80 re...

A: The total moment of inertia of the woman-disk system is, I=mwomanr2+mr22I=50 kg4.0 m2+110 kg4.0 m22I...

Q: Procedure: To find center of mass of the ruler Experimental setup: Part A: Prove Sum of Torques - 0 ...

A: Aim: To determine the sum of the torque is zero. Apparatus required: 50 and 100 grams of masses, tap...

Q: You push on a block of mass m a frictionless table from rest to a speed v in a time t. What is your ...

A: P=Et

Q: Astronomers have observed a small, massive object at the center of our Milky Way galaxy . A ring of ...

A: Part (a) Given: The diameter of the object is d=15 ly. The speed of the object is v=200 km/s. The ...

Q: You have a bucket containing an unknown liquid. Youalso have a cube-shaped wooden block that you mea...

A: Given data: The side of the wooden cube is a=8.0 cm. Part (a) Let, ρ be the density of the liquid,...