(b) The work function for metallic beryllium (Be) is 4.98 eV. Calculate: (i) Its threshold frequency. (ii) The kinetic energy and the speed of the electrons ejected by light of 200 nm.

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Q: 2. we S 50° 18m ->E

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Q: 8. Find R = Ã+B, given that A has a magnitude of 4 at an angle of 30° above positive x-axis and B…

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Q: Find the following vector product B x B.

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Q: Two vectors, A and B, have magnitudes of 5.40 units and 9.81 units, respectively. The angle between…

A: Ans; 35.102 unit2 Explanation:Step 1:

Q: Biove +五 请2m

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A: Let us write down the forces in vector form as- F1→=2.0 N-cos20oi^+sin20oj^F2→=10.5 N-j^F3→=18…

Q: add the vectors

A: For the first figure, the vector equation is

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Q: 3. Two vectors are equal if they have the... a. Different magnitude and direction. O b. Same…

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Q: 15. A certain vector in the xy plane has an x component of 4 m and a y component of 10 m. It is then…

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Q: 4. Write each combination of vectors as a single vector. See figure below. (a) PQ+QR (b) RP+ PS (c)…

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Q: Consider the following motion: The cart's initial position is the bottom of the track. You give it a…

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Q: Six vectors are shown below. ン Select all vectors which have the same magnitude.

A: The quantities which has both magnitude and direction are called vectors. A vector has a head and a…

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Q: Answer: T0.005@ A PERPENDICULARITY 8. Answer:

A: Perpendicularity within a 0.005 tolerance zone at MMC relative to datum A

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Q: 9) Determine the unit vector of r. 30 40°

A: Given data, Angle of the vector r from Z-axis = 30o Angle of vector r from X-axis = 40o

Q: Determine the resultant of the following: 8.0 N at 40°, 9.0 N at 120°, and 12.0 N at 200 all angles…

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Q: In the cross (or vector) product qu x B we know that 9=1 -307 +9.07+-212 -3.07+4.07 +6.0 B=B₁1+B7+BA…

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Q: Question 2.7

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Q: Part C Enter the expression -20 + 6D in the answer box using the notation just described. Express…

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Q: Q1. Express each force using cartesian: A=( )+ ( )j ++( )k B=( )i + ( )j + ( )k C = ( )i + ( )j + (…

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Q: 3. An elevator starts from the third floor and moves downward. The v-t graph of a person riding the…

A: We will use Newton's equation of motion to answer the questions. The detailed steps are as follows.

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Q: Find the magnitude and direction angle of the given vector. A. u=(3, 8) B. u=(4, 7) C. u=(5, - 1)

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A: Answer Given  Force  F = 4 N Angle θ = 45º with x axis we have to find y component.

Q: Step 2. Refer back to Figure 8.1. For which types of electromagnetic radiation is the atmosphere of…

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Q: Ā = 3î + 43, B = î + 2)

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Q: X 3. Calculate the coordinate direction angles of vector Q. Z 72° 36° Q = 300 lb y

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Q: Prove that mut %3D ==o /2

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Q: up or down

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Q: 4. Vector d = (-2.5, -3.6) m, reconcile the vector to polar coordinate

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