The metal plate in a photocell has a work function of 4.6 eV. 3. 4. The minimum frequency for electromagnetic radiation to eject electrons from this metal is Hz. The answer is a.b x 10cd. The values of a, b, c and d and are (Record your four-digit answer in the numerical-response section below.) Your answer: 0000 air Record the angle of water Ø₁ Ø8 02:03 incidence 0₂ 06 Match the angles of incidence, reflection and refraction with the angles in the diagram. 05 reflection refraction (Record your three-digit answer in the numerical-response section below.) Your answer:

Q: At t₁ = 3.0 s, a car has velocity components vx1 = 5.0 m/s and vy1 = 4.0 m/s. From t₁ = 3.0 s to t₂…

A: Apply the first kinematic equation along the x-direction to determine the final velocity at 17 s.

Q: ok i understand much better now but where did the 0.258 come from (multiplied to 17)

A: Moment of force

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A: The solution for this question has been solved below...

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A: a) The kinetic energy of the system is 6.34 J.

Q: For how long should a force of 52 N be applied to change the momentum of an object by 9 kg.m/s?

A:

Q: of water in an insulated container as shown. Then, the object falls through a distance of 6.00 m…

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Q: Lonnie pitches a baseball of mass 0.20 kg. The ball arrives at home plate with a speed of 40 m/s and…

A: Given  mass(m)=0.20 kg vi=40 m/s vf=-60 m/s (negative because it is in opposite direction)…

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A: Determine the acceleration due to gravity on the Moon. Write the expression for the time period.…

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A: Given : mass, M = 8.6 × 1028 Kg , Radius, R= 1.8 × 103 m , Volume of dime, V = 2.0 × 10-7 m3 Find :…

Q: A 30 kg child is jogging until he hits a swing with a mass of 4 kg. If he was running at 4 m/s, find…

A: in this question we use conservation law of energy   so change in energy will be zero.

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A: Given: The mass of the skater is 47.7 kg. The initial velocity of the skater is 0 m/s. The final…

Q: 11. There are four forces acting on a pole, one points north, one points south, one points east, and…

A: Option a is correct i.e increase forces pointing the north and west.

Q: A baseball (m = 153 g) approaches a bat horizontally at a speed of 37.6 m/s (84.1 mi/h) and is hit…

A: Given:  Mass of the ball (m) = 153 g = 0.153 KgInitial speed of the all u = 37.6 m/sFinal speed of…

Q: At the surface temperature of the sun T = 5800 k, diameter R = 7 * 10^8 m, and at the average…

A:

Q: Consider the rectangular current carrying loop of wire. The current direction is indicated by the…

A: Given : Rectangular loop , magnetic field is constant and out of the screen. Find : Net magnetic…

Q: Consider the system shown in figure. Block A weighs 45.0 N and block B weighs 25.0 N. Once block B…

A: Given, Weight of the block A, WA = 45.0 N Weight of block B, WB = 25.0 N

Q: A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that…

A: Given Data, Angular Speedω=37 rev/s Tangential speed (v)=56 m/s

Q: The battery below has a potential difference of 568 V. 8. 9. 4.00 cm 4.00 cm Use the following…

A: Let, Potential at level C be VC = 568 V Potential at level D be VD = 0 V Therefore the potential…

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A:

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Q: In your laboratory you have a sensitive piece of equipment which will not function if it is in the…

A: Solution: The strength of the magnetic field which is created by the current carrying long straight…

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A: 1. The ray of light emerging from medium B will be parallel to ray 1.

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A:

Q: A closed vertical cylindrical vessel, 1.80m in diameter, 3m high is 8/10 full of oil (SG=0.85) and…

A: Given: The diameter of the vessel, d = 1.8 m The height of the vessel, H = 3 m The Specific gravity…

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Q: What are the basic contents of "Law of electro magnetic induction" ?

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Q: 1. The image of a distant object is focused by a concave mirror 25.0 cm from it. (a) What is the…

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Q: What is the period of a wave that has frequency of 300 Hz

A: in this question we use time period equation.

Q: If you want to record a standard song, what is the ideal sampling rate (and bit rate)?

A: what is the sample rate and bit rate to use . so let me break it down in a simple way. the sample…

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A:

Q: A person stands at a distance of 3.6 m in front of a wall covered with a plane mirror from the floor…

A: . When light falls on an object, 3 things happen. Part of it is reflected back(reflection). Part of…

Q: 1. The velocity of a particle which moves along the a linear reference axis is given by v =…

A:

Q: Consider a child who is swinging. As she reaches the lowest point in her swing: Select one: 1. A…

A:

Q: What could be true about the difference between the rockets?

A:

Q: 2. The displacement of a particle which moves along the x axis is given by x = (-4 + 31²)e-0.251,…

A:

Q: The velocity-time graphs represent the motion of three different objects. Identify any object that…

A: Getting faster or speeding up means that as time passes the speed of  object increases i.e there is…

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A:

Q: 2. Two horses pull horizontally on ropes attached to a stump. The two forces F1 and F2 that they…

A:

Q: A man is pushing a loaded rotating tray with radius of 0.5m on top of a table with a force of F =…

A:

Q: he velocity of a particle which moves along the a linear reference axis is given by v = 2—4t— 6t3, t…

A:

Q: A typical lightning bolt may last for 0.197 s and transfer 1.13 x 1020 electrons. Calculate the…

A: Time ( t ) = 0.197 s  Number of electrons ( n ) = 1.13 * 1020 electron

de Broglie Equation

The sketch of matter waves is drawn below: