1. Calculate the net torque about point O for the two forces applied as in the figure. The rod and both forces are in the plane of the page. Take positive torques to be counterclockwise. F₂-12.0 N 30.0° 0 F₁ = 8.00 N 2.00 m 3.00 m

Q: constant velocity a distance 8.0 m along a 30° incline by the horizontal force F → . The coefficient…

A: mass of crate ,m=40 kgdistance moved on inclined =8 mangle of inclination =30°  µk = 0.40

Q: In the figure the ideal batteries have emfs &₁ = 18.8 V, &2 = 9.08 V, and 3 = 5.40 V, and the…

A: In the figure given the ideal batteries have emfs  ₁ = 18.8 V,   =9.08 V, and = 5.40 V, and the…

Q: An 857-µF capacitor [C] was connected to a 78.0-V DC battery [AV]. When the capacitor is fully…

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Q: In the figure R₁ = 5.03 02, R₂ = 10.11 02, R3 = 15.04, C₁ = 5.19 µF, C₂ = 10.25 µF, and the ideal…

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Q: A ball that is a uniformly hollow spherical shell with a mass of m and radius r rolls down an…

A: Apply the formula of the sine of an angle  and substitute the corresponding values to calculate the…

Q: Let's say that a photon carries an energy equivalent to 620 eV (electron volts). Knowing that h*c =…

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Q: Imagine you are at a location where some incident light source provides light at an intensity of 25…

A: The intensity of light is: Let, is the distance of that guy.The final distance of that guy is:

Q: A karate expert executes a swift blow and breaks a cement block with his bare hand. Based on the…

A: Using Newton's second law:dp = Fdt.....................(1)Here,dp is change in momentum F is force…

Q: 2) A car's wheel has a radius of 0.3 meters. If the car linearly accelerates at the rate of 40 m/s2,…

A: Radius, r = 0.3 mLinear acceleration, a = 40 m/s²Angular acceleration, α = ?

Q: uming no frictional forces, the acceleration of the trolley .00 ms-² B. 2.45 ms ² C. 1.95 ms ²

A: Mass of trolley,                       Mass of load,                       We need to find,a)…

Q: particle moves according to a law of motion s = f(t) = ³ - 15t² + 72t, t≥ 0, where t is measured in…

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Q: The 20-g bullet is travelling at 400 m/s when it becomes embedded in the 2-kg stationary block. The…

A: Mass of the bullet,                  Speed of the bullet,                  Mass of the block,…

Q: A 0.17-kg red billiard ball moving at 1.6 m/s strikes a blue billiard ball of the same mass moving…

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Q: A force Facts on a body and produces an acceleration a. The body undergoes a displacement d and…

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Q: The figure below shows a long straight wire just touching a circular loop carrying a current I1 =…

A: The current in the circular loop  in the counterclockwise direction.The radius of the circular loop…

Q: 1. A bicycle tire is rotating counterclockwise at 3.141 rad/s. Over the course of 10.0 seconds, the…

A: The angular speed of the bicycle is The bicycle comes to rest at The final angular speed of the…

Q: m having trouble with this practice problem. I was given the answer key:  a.)  3.24 m/s b.) 2.65 m…

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Q: A road makes an angle of 4.8° with the horizontal. How far must          an automobile go up the…

A: Angle making with horizontal is 4.8 degrees.

Q: A block is placed on the surface of a sphere, as shown below. The coefficient of static friction…

A: Coff. of static friction = 0.68

Q: A truck travels east with a momentum of 2,600 kg km/s, and a motorcycle heads west with a momentum…

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Q: At how many meters per second is the car moving away from the observer 5 seconds after it passes…

A: Observer stands on the road 50 meters south of the intersection and watches an eastbound car…

Q: person drops a ball from the roof of a building while a second person observes the motion of the…

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Q: A large freshwater fish has a swim bladder with a volume of 5.0×10−45.0×10−4 m3m3. The fish descends…

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Q: The surface charge density on a long straight metallic pipe is a. What is the electric field outside…

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Q: A hollow metal cylinder has inner radius a, outer radius b, length L, and conductivity σ. The…

A: Given:The inner radius is a=0.005 mThe outer radius is b=0.022 mThe length is L.=0.1 mthe current is…

Q: A reporter estimates that at this speed , he will finish the entire race in less than 6 hrs. Is the…

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Q: = In the figure the current in resistance 6 is i6 = 1.36 A and the resistances are R₁ = R₂ R3 =…

A: i6 = 1.36 AR1 = R2 = R3 = 2.11 ohmR4 = 14 ohmR5 = 7.61 ohmR6 = 4.27 ohmEmf, ε = ?

Q: A 65 kg sprinter, starting from rest, runs 51 m in 7.0 s at constant acceleration. What is the…

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Q: At what speed does an object move so that its mass is 10% greater?

A: According to the Einstein's special theory of relativity, the relativistic mass of the object is…

Q: 3-A 20 g bullet is shot toward a relatively thin wooden block. The speed of the bullet before…

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Q: Two particles each weigh 1.18 N. Find the magnitude of their mutual gravitational force when they…

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Q: A particle moves along a straight line such that its position is defined by s= (2+³ + 5t2-12t - 10)…

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Q: In the figure R₁ = R₂ = 10.322, and the ideal battery has emf & = 12.34 V. (a) What value of R3…

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Q: A jet airplane with a 75.0-m wingspan is flying at 280 m/s.  What EMF (voltage) is induced between…

A: length of wingspan, L = 75 m velocity, v = 280 m/smagnetic field, B = 3 x 10-5 T

Q: A soccer player kicks a ball on a level playing field with an initial velocity of 11.3 m/s at an…

A: The initial velocity the soccer ball: The angle of projection of the ball:

Q: a) At what speed (in m/s) will a proton move in a circular path of the same radius as an electron…

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Q: puck of mass m=0.075 kgis moving in a circle on a horizontal frictionless surface. It is held in its…

A: Mass of puck  (m) = 0.075 kg Radius of path = length of string (R) = 0.42 m Time taken to complete…

Q: A steel tank is to be positioned in an excavation. The magnitude of P₁ = 550 lb. P1 30° P

A: Magnitude of P1 = 550 lbAngle = 30

Q: In the figure below, two boxes of masses m and 3m are connected by a string while a force F is…

A: mass = mForce = F

Q: One popular design of a household juice machine is a conical, perforated stainless steel basket 3.30…

A: Given that, the diameter D of top side of bucket is 13.40 cm or 0.134 m and radius R is 0.067 mThe…

Q: 4. Two tugs are pulling a large ocean liner out to sea on ropes. Tug A exerts a force of 51 kN at an…

A: The resolution of the vector along the axes as-

Q: Two cables tied together at Care loaded as shown. Given: Q = 165 lb. A B 30° C Q lb. 3 4 a Determine…

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Q: If you hold your arm outstretched with your palm upward, the force to keep your arm from falling…

A: Draw the free-body diagram of the arm.

Q: 5- Two objects of masses m₁ = 0.5 kg and m₂ = 0.2 kg approach to each other as shown in the picture.…

A: The mass of the first object (m1) is = 0.5kgThe mass of the second ball (m2) is = 0.2kgInitial…

Q: What is the work done by the two forces together in moving an object a distance of d = 17 m as shown…

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Q: The figure below shows a long straight wire just touching a circular loop carrying a current I1 =…

A: current in the circular loop in (ccw direction).Assume the radius of the circular loop is denoted…

Q: A BB gun is fired at a cardboard box of mass m2 = 0.85 kg on a frictionless surface. The BB has a…

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Q: Solve for and use the magnitude of the force of friction on Debbie and the tension in the rope to…

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Q: 6. A 60-kg woman stands on the back of a 6-m-long, 120-kg raft that floats at rest in still,…

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Q: The diagram above shows segments of two long straight wires, carrying currents. This time I1 = 6.46,…

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.