The 3 m long uniform plank is supported by a fulcrum at the midpoint. Where should a 45 kg student must be from the midpoint to be able to balance the plank? 45 kg X = ? +0.4 m +0.5 m 30 kg 40 kg

Q: 2. Light having a wavelength of 600 nm passes on a 0.32-mm-diameter lens. On a screen 80 cm away, a…

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Q: 5. An astronaut aims a flashlight toward the tail of his space-ship, which is traveling with a…

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Q: 1. Write the Schrodinger equation and general solution. What is the meaning of them? 2. Solve the…

A: 1) The Schrodinger equation is given by: -h22m ∇2ψr,t+Vrψr,t=ih∂ψ∂tThe meaning of the equation is…

Q: A 77.0 kg woman slides down a 42.6 m long waterslide inclined at 42.3°. At the bottom, she is moving…

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Q: c) the Concrete block Friction of MS Determine the minmum verge 15 Figure has is equal to 0.2…

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Q: Four charges form an isosceles trapezoid: Q1 = +2C is located at vertex X; Q2 = -3C is located at…

A: Charge q1 =+2C q2 =-3C q3 =+4C q4= - 5C We have the net force exerted by charge 1,2,3 on charge 4

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Q: VILAS |. If you have VBIAS = 5V, R = 1kQ, and the diode is made from silicon. Using simplified model…

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Q: b)Calculate the magnitude of net electric field at the point pi for both the infinite sheets.…

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Q: A thin rod has a length of 0.900 m and rotates in a circle on a frictionless tabletop. The axis is…

A: L = 0.9 mI1 = 1.06 * 10-3 kg m2W1 = 0.607 rad/sm = 5 * 10-3 kgNow, since at last the bug will be…

Q: The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive…

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Q: A thin rod of length 3 m lies on the x-axis, centered at the origin. The rod bears a uniformly…

A: "Since you have asked multipart question, I am answering first 3 subparts as per Bartleby…

Q: An electron having a velocity of 3x 10 m/s enters perpendicular to a region of 05T magnetic feld…

A: Given: The velocity of the electron is 3x108 m/s. The magnetic field is 0.5 T.

Q: Thiose conduatons aine campying comments, I, = Iz= 2A ionsto the and T3- 6A at of os shouen în the…

A: The magnetic force per unit length of current carrying conductor is given by the formula,…

Q: Ariel Time, s Byron

A: d) If the given graph represents the position and time graph then its slope at any moment will…

Q: 2. A stone falls freely for 8 seconds. Calculate the stone's velocity after 8 seconds? 3. A kangaroo…

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Q: Question 12: Use Boolean algebra to simplify the following expression, then draw a logic gate…

A: The Boolean algebra is different from normal algebra. We deal with 2 states here that are 0 and 1.…

Q: Question 12: Use Boolean algebra to simplify the following expression, then draw a logic gate…

A: To solve the given question, let me recall a basic complement Boolean algebra law, that is, (1) A +…

Q: A very long solenoid with a circular cross section and radius r1= 2.50 centimeters with ns = 140…

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Q: Calculate the temperature at which the average K.E. of a molecule of a gas will be the same as that…

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Q: 3. A steel circular rod with a radius of 15 cm is placed between two vertical supports at 15 degrees…

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Q: The 568-N force is applied to the 97-kg block, which is stationary before the force is applied.…

A: We first divide the force applied into vertical and horizontal components. Ph = 568×cos 34o = 470.9…

Q: Four point charges of equal magnitude are arranged at the corners of a square of side L as shown in…

A: Only solution to question 3 is provided in next step as only this question was asked to be answered.

Q: 4. Steel railroad rails 10m long are laid with end-toend clearance of 3mm at a temperature of 15…

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Q: 1. What is: of IT b) IR, IR, IR c) VR, VR₂ R3 JOV DC R₁ 509 www R₂₁₂= WOR -MN R3 30a

A: Given The resistance of the resistors are R1=50ΩR2=150ΩR3=30Ω And the voltage is V=10V   From the…

Q: ly....o

A: Given that the radius is R and current density is J=kr A/m2

Q: help?

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Q: 3. a) Assuming that a submarine is operating in SALTWATER. When a submarine dives to a depth of 500…

A: Given, h = 500 m Atmospheric pressure P0 = 101 kPa = 101 x 103 Pa = 1.01 x105 Pa Density of sea…

Q: Problem 9: A 82 kg man is being pulled away from a flaming structure as shown in the figure.…

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Q: 5. If the Hydrogen atom has a quantum number of 3, solve for the energy and radius.

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Q: How many kJ/min is required to produce 10 metric tons of ice per day at -10°C from steam at 100°C? O…

A: The total energy required is the sum of the energy to convert 100°C steam to 100°C water, cooling…

Q: Filament style lightbulbs become brighter when more current is passed through the filament.…

A: Three bulbs A, B, and C are identical bulbs connected in a circuit is shown. Consider the resistance…

Q: Question 15: Use Boolean algebra to simplify the following logic gate circuit: A B C & 35 Output

A: As directed, Question 15 will be answered. There are 3 AND Gates1st AND Gate, Y1=ABC'2nd AND…

Q: 1. A coherent light source is pointed at two parallel slits. The slits are 0.140 mm apart. Some of…

A: Given,distance between slit d=0.140mmdistance of screen D=5.32mwavelength of light λ=532nm

Q: Two trains run around circular paths of equal radius R = 10 km in opposite directions. The faster…

A: R = 10Km xfast=Rcos(2πt)xslow=Rcos(2πt/3) Time taken by fast train to complete a circular path and…

Q: Suppose same amounts of heat transfer (Q) into different masses of copper and water, causing same…

A: Heat transfer to copper and water are the same

Q: A custodian pulls a vacuum 13.5 m with a 33.9 N force at a 55.0° angle, against a 14.1 N friction…

A: Given data: Displacement of the vacuum is, d= 13.5 m Force applied on the vacuum by custodian is, F…

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.