Two ladders, 4.00 m and 3.00 m long, are hinged at point A and tied together by a horizontal rope 0.90 m above the floor. The ladders weigh 600 N and 450 N, respectively, and the center of gravity of each is at its center. Assume that the floor is freshly waxed and frictionless. (a) Find the upward force at the bottom of each ladder. (b) Find the tension in the rope.

Q: Select the direction in which the particles are deflected upon entry into the magnetic fields shown:…

A: Given that:

Q: (a)    Define kinetic energy and gravitational potential energy. What is the SI unit for energy?…

A:

Q: 43-44. If a ray of light from a material with n = 1.2 points at an angle of incidence of 25° would…

A:

Q: Three resistors of 15 0, 12 0, and 13 Q are connected in parallel with one another. What is the…

A: Given data :- R1 = 15 ohm R2 = 12 ohm R3 = 13 ohm Also, it is given that these three resistances are…

Q: the position nature and size of the image

A: Given:-  A convex mirror used for rearview on an automobile has a radius of curvature of R =  3.00 m…

Q: A trolley of mass 1 kg travelling at 3 ms-1 collides with a stationary trolley of mass 2 kg. If the…

A: Given: Mass of moving trolley, m1 =1 kg Velocity of moving trolley, u1 =3 ms-1 Mass of stationary…

Q: A deep-sea fisherman hooks a big fish that swims away from the boat, pulling the fishing line from…

A: Given data as per question  t    =   2s angular acceleration  =  110rad/s2

Q: A 271-kg glider is being pulled by a 1955-kg jet along a horizontal runway with an acceleration of…

A:

Q: + (2.61 + cx + 1.91y + bz) j-› + (−2.73x − 3.66y − 3.64z)k-›…

A: We know that We have given that the velocity field is given as V-›= (0.657 + 1.73x + 0.948y + az)…

Q: of mass m1 = 2.05 kg and a block of mass  m2 = 6.35 kg are connected by a massless string over a…

A: Givenm1=2.05 kgm2=6.35 kgR=0.25 mM=10 kgθ=30°

Q: A 900-kg box car traveling at +20 m/s strikes a stationary second car. After collision, the box car…

A: Given data :- mass of the box car m1 = 900 kg velocity of box car before collision u1 = 20 m/s…

Q: The loop in the figure has a resistance of 2.5 Q and is being pulled to the right at 1.0 m/s. X X X…

A:

Q: Determine the coordinates of the center of gravity, CG (x,y) m, of the composite metal plate shown…

A:

Q: 27 - 28. What area of the coil is needed to achieved a flux of 2.0 Wb over a magnetic field streng…

A: Given: Magnetic flux (Φ) = 2 wb Magnetic field intensity (B) = 5.5 T

Q: A vehicle, starting from rest, accelerates on a circular track with a 305 m diameter. What uniform…

A:

Q: Find the work done if a force of 250 lbs at an angle of 20 degrees is used to drag a heavy crate 20…

A:

Q: The clockwise circulating current in a solenoid is increasing at a rate of 8 A/s. The cross-…

A: di/dt=8 A/s. Area=3.14159 cm² n=229 L=22.6 cm

Q: A horizontal aluminum rod 3.9 cm in diameter projects 7.1 cm from a wall. A 1200 kg object is…

A:

Q: Determine the hydraulic radius Wetted area=18 m2 Wetted perimeter=15 m

A: Write the given values with the suitable variables. A=18 m2P=15 m here, A is the wetted area and P…

Q: Explain why solar energy is attractive as a renewable energy source worldwide

A: solar energy is attractive as a renewable energy source worldwide.

Q: 2. The froghopper leaps into the air from the edge of a vertical cliff, as shown in figure below.…

A:

Q: Does a spring exert the same amount of force regardless of its extension?

A:

Q: An object is fired from the ground at 124.52ft/sec at an angle of 34.35deg. along the +x axis. Find…

A:

Q: An air-core solenoid contains 1060 m of wire per meter and has a cross-sectional area of 0.23 m. A…

A: Given: The number of turns per length in the solenoid: n = 1060 m-1. The cross-sectional area of…

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A: Given Mass of the person is m=63.1 kg Height from where the object is dropped is h=2.05 m Time taken…

Q: Define heat and temperature. Convert -128.6 °F to the Celsius scale. The temperature of 200 g of…

A:

Q: Calculate the minimum average power that a 35-kg human boy must generate in climbing up the stairs…

A: Given: mass of the boy (M) = 35 Kg            height of the building (h) = 170 m            Time…

Q: In a certain region for which o = 0, µ = 2µ,, ɛ = 10E, and J = 60 • sin(10°t – Bz) a, mA/m². Find D…

A:

Q: Here we go again (yes, this set of questions is starting to feel like Groundhog Day). You AGAIN wake…

A:

Q: .5 s to uniformly accelerate to its final angular speed @2= 750 rad/s

A: GivenInitial angular velocity, ω1=350 rad/sFinal angular velocity, ω2=750 rad/sTime t=5.5 s

Q: OK, same sort of track, but now with d = 2.66 m. Now suppose the blocks starts on the track at x =…

A:

Q: The figure below shows how a bleeder resistor (R = 250 kΩ) is used to discharge a capacitor (C =…

A: Bleeder resistor: A bleeder resistor which is  connected in parallel with the output of a…

Q: In the figure, a 2100 kg demolition ball swings from the end of a crane. The length of the swinging…

A:

Q: The diagram below represents a water wave. Calculate the number of wavelengths there are between X…

A: Here we are going to calculate the number of wavelengths between x and y.

Q: The figure shows the stress-strain curve for a material. The scale of the stress axis is set by s =…

A:

Q: How much pressure would a 120.0 Ib person put on a platform if all their weight was concentrated on…

A: Pressure = weight/area

Q: points east, and the j vector points north.) 3.6

A: GivenA river flows due south at 2 mi/h. A swimmer attempting to cross the river heads due east…

Q: The temperature of 200 g of water decreases from 20 °C to 0 °C in 10 minutes. Calculate  i.  the…

A:

Q: A 1 500 kg van with initial velocity of 20.0 m/s to the east crashes into the back of a 9 000 kg…

A:

Q: A particle travelled 3.9 m north then turned west and travelled 9.5 m in that direction and lastly,…

A:

Q: A 1.40 kg block hangs from a spring. A 340 g body hung below the block stretches the spring 1.90 cm…

A:

Q: Four graphs of angular velocity versus time are shown. (a) (b) (c) (d) grid cell has width 1 s and…

A: Angular displacement is area under the graph angular velocity versus time . Width of each cell is 1s…

Q: Two automobiles A and B are approaching each other in adjacent highway lanes. At t = 0, A and B are…

A:

Q: A motorized wheel is spinning with a rotational velocity of a, = 1.81 rad/s. At t 0 s, the operator…

A: Given, rotational velocity of motorized wheel, ω(t) = ωoarctanc+bt2c = 1.5574b = 5.21 s-1 ωo = 1.81…

Q: The vectors shown in the accompanying form an equilateral triangle vith figure sides 2.0 m long.…

A:

Q: Describe what Electromagnetic Induction is. Use at least five sentences.

A: Electromagnetic induction - When the magnetic field across any material(which is the conductor of…

Q: decide to make one of the world’s largest musical instruments, using long cylindrical steel rods…

A: We know that the long cylindrical steel rods are clamped tightly at both ends. The speed of…

Q: 40em . 30cm

A: A lens consists of transparent material with an index of refraction different from the surrounding…

Q: If the wooden crate accelerate to the right, which of the following is TRUE? A wooden crate is…

A: Data provided:  Crate accelerate to the right

Q: An 8000 kg roller coaster, traveling along the frictionless track shown, has velocity v the point…

A: We know the We have given that the mass of the roller coaster is m = 8000 kg  and the velocity vi =…

Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.