A metal has a work function of 3.1eV and is illuminated by light of wavelength A = 320 nm. What is the maximum velocity of the photoelectrons emitted?

Q: Car: Drag: 5000 N Thrust: 5000 N Which one of the statements describes the motion of the car? A. It ...

A: Given: The drag force is 5000 N. The thrust force is 5000 N.

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Q: You are in a car 54.9 meters away from a street sign (distance from your face to the sign). The text...

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Q: Ql: Show that the force vector D = (2î - 4ĵ + k) is orthogonal to the force Vector G (3î + 4j + 10k)...

A: For orthogonal, the force vectors should perpendicular to each other. And for that, the dot product ...

Q: The Electric Field Mapping Experiment: An electric field is created by two parallel plates. Which of...

A: The electric field produced between the two charged plates, originates from the positive plate and t...

Q: A metal bar is pulled through a region in which the magnetic field is perpendicular to the plane of ...

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Q: Wheatstone Bridge Experiment: A galvanometer is used as a: a) current source b) voltage source c) nu...

A: Wheatstone bridge Experiment :  A galvanometer is used as  a :   

Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure...

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Q: Tho currents shown in the figuro are n 16.00 A, 12= 9.00 A, and 13 20.00 A. The line intogral of B.d...

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Q: FIRE EMERGENCY A girl of mass 48.0 kg is rescued from a building fire by leaping into a firefighters...

A: Given  Mass m = 48 kg  Height h = 12 m  Time taken to stop = t = 0.45 second. 

Q: During the Wheatstone Bridge experiment, which of the following is true? a. We vary both the known a...

A: Ing the Wheatstone bridge experiment there are 4 resistance. Out of which 3 are known and one is the...

Q: A rutber ball and a clay hall have equal mass and are dropped ono a digital scale. The nbber hall bo...

A: Given:  A rubber ball and clay ball with same velocity hits the weighing scale.  Rubber ball bounces...

Q: How much heat is required to raise 7.9 kg of gold 55°F? (include units with answer)

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Q: a) Two out-of-phase loudspeakers separated by a distance d emit 170 Hz sound waves along the X-axis....

A: As given, The frequency, f=170 Hz Sound velocity, v=340 ms   Write the equation for wavelength as be...

Q: A 20-cm long wire carries a current of 12 A in a direction that makes an angle of 10° with a SihX un...

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Q: A uniform charge density of 500 nC/m is distributed throughout a spherical volume (radius = 16 cm) C...

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Q: The driver of a 10-wheeler truck slams on the brakes when he witnessed a huge coconut tree blocking ...

A: Here the skid mark shows the distance traveled during the deceleration. So we have: Distance travel...

Q: The dimensions of a cone are displayed in the figure. As shown, the bottom face of the cone rests on...

A: electric fulx for a closed object is always =0 so here electric flux through the flat surcace(Ef) + ...

Q: 1.A river is flowing from west to east at a speed of 5 metre per minute. A man on the south bank of ...

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Q: 3.7.4. [Level 1] A baseball traveling at 60 mph hits the helmet of a player. If the baseball weighs ...

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Q: If 480 C pass through a 4.0-0 resistor in 10 min, what is the potential difference across the resist...

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Q: In the figure below, the current in the long, straight wire is I, = 6.80 A and the wire lies in the ...

A: The current in the nearest side of the loop moves in the same direction as in the wire. So, the magn...

Q: |25. Four charged particles are at the corners of a square of side a as shown in Figure P23.25. Dete...

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Q: Kirchhoff's loop rule is a statement of conservation of: Select one: a. charge b. momentum

A: Kirchoff’s loop rule is a statement of conservation of Energy. As it stats that the sum of all volta...

Q: A 5-cm radius conducting sphere has a charge density of 2 x 10 c/m2 on its surface. Its electric pot...

A: radius of sphere=5cm=0.05m charge density (σ)=2×10-6 C/m2

Q: Depending on the graph of Vc versus t for the charging process in RC circuit, the time constant r (i...

A: Depending on the graph of Vc versus t for the charging process in RC circuit, the time constant is ?...

Q: DELL Ohm's Law Experiment Ohm's law is not applicable to: a) DC circuits b) high currents c) small r...

A: Hey, ohms law is great for circuits which contain simple elements such as resistors(load), a voltage...

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Q: 9.0 V 3.0 N + ww I 2.0 Ω ww A 3.0 A 후 + 1.0 Ω

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Q: A wire carries a 1.00-A current along the x axis, and another wire carries a 5.40-A current along th...

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Q: Ohm's Law Experiment The slope of V versus I is 31 V/A. Knowing that R2= 10.0 n, the value of R, (in...

A: Data Given:- Slope of V versus I in Ohm's experiment is 31 V/A=31 Ω R2=10.0 Ω Required:- Value of R1

Q: A floating ice block is pushed through a displacement d = ( 27.0 m )î – (24.0 m )ĵ along a straight ...

A: GivenF→ =(27.0 m)i^ -(24.0 m) j^d→=(298 N ) i^ -(183 N) j^

Q: The loop in the figure below is rotated out of the plane of the drawing while B is kept constant. Yo...

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Q: A uniformly charged insulating rod of length 6TT cm is bent into the shape of a semicircle. The rod ...

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Q: A 5-kg block is pulled up along rough inclined plane by a force. The angle of inclination of the pla...

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Q: 6) Multiple choice: What is the AISC recommended slenderness ratio limit for tension members? a) L/2...

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Q: The Specific Charge of Copper lons Experiment If the specific charge (K) of copper ions in this expe...

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Q: .A block of mass 0.1 kg is held against a wall applying a horizontal force of 5N on the block. If th...

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Q: Part A A parallel-plate capacitor having square plates 4.50 cm on each side and 8.00 mm apart is pla...

A: According to question we need to find resonance angular frequency of the circuit. 

Q: Wheatstone Bridge Experiment: In the circuit shown if the wire AB has a length of one meter, the gal...

A:  for balanced wheat stone bridge condition is  RSRX=L100-LRS=9ΩL=60cm

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Q: figure shows the electric field produced by a positive point charge. Drag-and-drop on the figure to ...

A: Electric field is the negative gradient of electric potential. E = -dV/dr

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Q: Consider the following figure. (a) A conducting loop in the shape of a square of edge length { = 0.5...

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Q: A 556-Hz tuning fork is struck and placed next to a tube with a movable piston, creating a tube with...

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Q: An ideal voltmeter has equivalent resistance and ideal ammeter has equivalent resistance :

A: we know that the resistance of an ideal voltmeter is infinite and for ammeter it is zero.  

Q: How did the phenotype of the fittest individual change over time

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Q: The magnitude of the induced current in a stationary conducting (secondary) loop: O a. Depends only ...

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Q: A single-turn rectangular wire loop measures 6.00 cm wide by 10.0 cm long. The loop carries a curren...

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Q: Four identical charged particles (q = +10.0 µC) are located on the corners of a rectangle as shown i...

A: Given  The magnitude of charged particle is q = +10 μC The length of the rectangle is L = 60 cm The ...

Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?