15) An 82-kg painter stands on a long horizontal board 1.55 m from one end. This 27-kg board is uniform, 5.5 m long, and supported at each end by vertical posts. (a) What is the magnitude of the total force provided by both posts? (b) With what force does the post that is closest to the painter push upward on the board?

Q: Show your work on a separate document. Block or highlight your answers. 1. Refer to figure 1. A mass…

A: for equilibrium forces must be equal and opposite

Q: 21) Rotational Dynamics: The drive chain in a bicycle is applying a torque of 0.850 N m to the wheel…

A: Given:Torque(ζ)=0.850N.mMoment of Inertia(I)=0.100kg.m2

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A:

Q: Which of the following is correct? None of the listed choices are correct. Radio waves have higher…

A: Gamma rays have higher frequency than infrared waves.

Q: 7. What percentage of the acceleration at Earth's surface is the acceleration due to gravity at the…

A: Given data: The height of above Earth's surface is h=300 km.

Q: 108 T. Assuming value= 9.28×10-24 J/T and The measured surface magnetic field strength of a neutron…

A: Given: The magnetic field strength of a neutron star is 108 T. The magnetic moment of the electron…

Q: Frank Lemming steps off the cliff with a herd of his fellow lemmings. If Frank free falls for 3…

A: As per the given data, Time (t) = 3 s; Acceleration (a) = 9.8 m/s2 (For free fall); Initial velocity…

Q: a. What is the speed of the combined mass system after the collision?

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Q: 2.Two vehicles are traveling in opposite directions and are involved in a head on collision. Vehicle…

A: Given data: Mass of first vehicle, m1 = 1500 kg  Mass of second vehicle, m2 = 4500 kg  The velocity…

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: a. A fan cart, with frictionless wheels and negligible air resistance is placed on a level surface…

A: (a) Explanation: The force applied on the cart is constant therefore the acceleration on the cart is…

Q: At he center of the rope, a 7.9-kg ball is hung as shown. What is the tension in the rope if the…

A:

Q: 19) Torque: A man in a gym is holding an 8.0-kg weight at arm's length, a distance of 0.55 m from…

A:

Q: Which of the following correctly lists electromagnetic waves in order from shortest to longest…

A: The electromagnetic spectrum is written as  Radiowave ( 103 m ) , Microwave ( 10-2 m ) , Infrared (…

Q: 7) The figure below shows a conical pendulum. It consists of a bob is suspended at the end of a…

A:

Q: A large object consists of two, flat steel plates that are welded together. The top plate has a mass…

A: Given Data : The mass of the top plate is given as m1 = 1.5 Kg. The mass of the bottom plate is…

Q: A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an…

A: there are three equation of motion  v = u +at  v2 -u2 = 2as  s = ut + 0.5at2 here  v = final…

Q: 73) Uniform Circular Motion: A 2.0-kg ball is moving with a constant speed of 5.0 m/s in a…

A: Mass of a ball (m) = 2 kg Speed (v) = 5 m/s Diameter (d) = 1 m Radius (r) = d/2 = 1/2 = 0.5 m

Q: Momentum Practice Techniques Do the following problem in at least one of these two ways. Pick the…

A:

Q: 58) Newton's Second Law in 2 Dimensions: A 1000-kg barge is being towed by means of two horizontal…

A: Given information: The mass of the barge (m) = 1000 kg The force applied on the barge (F) = 80.0 N…

Q: 7. A tennis ball (hollow sphere)is released from rest at h = 3R, where R = 1.0 m is the radius of…

A: Given, Initial height,h=3R=3(1)=3 m Height of point P,H=R=1 m Mass of ball, m=1 kg

Q: An 8-kg mass is attached to a spring hanging from the ceiling, thereby causing the spring to stretch…

A: Given that:m=8 kgy¯=80 cm=0.80 my(0)=-6 cmv(0)=0   (Mass is released)F(t)=0.2cost Nb=5 N-sec/m

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A:

Q: 007 10.0 points A 0.280 kg block on a vertical spring with a spring constant of 4.97 × 103 downward,…

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Q: A vehicle is being driven on a distant planet, where the acceleration due to gravity is 7.22 m/s?.…

A: Given data The acceleration due to gravity is taken as g = 7.22 m/s2 The vehicle's mass is: m = 2000…

Q: 1. A cylinder with outer radius, router is 1.8 meters is supported by a fixed axel as shown below.…

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

Q: 3. In a series RC circuit with R = 5.00 kN, C = 2.00 µF, and v = 170 sin (300t), where is in volts.…

A:

Q: What size capacitor should be placed in series with a 30-2 resistor and a 40-mH inductive coil if…

A:

Q: onsider the figure below. (Let w, = 105 N and w, = 50.5 N.) W2 (a) What is the minimum force of…

A:

Q: 3. Verify if these are correct equations checking the units (dimensional analysis) F = mv? / x v2 =…

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A:

Q: The equivalent resistance of the resistors below is about: 6Ω 9Ω 3Ω 50 ww

A:

Q: The figure below shows three stars rotating in circular path. They have equal mas m (they form an…

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Q: Objects of masses m, = 4.00 kg and mn, = 9.00 kg are connected by a light string that passes over a…

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Q: When a system is taken from state i to state f along path iaf in the figure, Q = 50.2 cal and W = 2…

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Q: A bike (including wheels) and rider have a combined mass of 68.5 kg and the two wheels of the bike…

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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.