Question

In: Physics

A uniform, 238-NN rod that is 2.18 mm long carries a 225-NN weight at its right...

A uniform, 238-NN rod that is 2.18 mm long carries a 225-NN weight at its right end and an unknown weight WW toward the left end (see the figure (Figure 1)). When WW is placed 40.2 cmcm from the left end of the rod, the system just balances horizontally when the fulcrum is located 74.2 cmcm from the right end.

Find W

If W is now moved 24.0 cm to the right, how far must the fulcrum be moved to restore balance?

If W is now moved 24.0 cm to the right, in what direction must the fulcrum be moved to restore balance?

Solutions

Expert Solution


Related Solutions

A long, uniform rod of length  0.500 mm and is rotating in a circle on a frictionless...
A long, uniform rod of length  0.500 mm and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end and is stationary. The rod has an angular velocity of 0.42 rad/srad/s and a moment of inertia about the axis of 3.20×10−3 kg⋅m2kg⋅m2 . An insect initially standing on the rod at the axis of rotation decides to walk to the other end of the rod. When the...
One end of a uniform ℓ = 4.40-m-long rod of weight w issupported by a...
One end of a uniform ℓ = 4.40-m-long rod of weight w is supported by a cable at an angle ofθ = 37°with the rod. The other end rests against a wall, where it is held by friction (see figure). The coefficient of static friction between the wall and the rod isμs = 0.595.Determine the minimum distance x from point Aat which an additional weight w (the same as the weight of the rod) can be hung without causing the...
A 2.8 mm -diameter copper wire carries a 31 Acurrent (uniform across its cross section). A)...
A 2.8 mm -diameter copper wire carries a 31 Acurrent (uniform across its cross section). A) Determine the magnetic field at the surface of the wire. B) Determine the magnetic field inside the wire, 0.50 mm below the surface. C) Determine the magnetic field outside the wire 2.5 mm from the surface.
A long coaxial cable with a radius s carries a uniform line charge Q on its...
A long coaxial cable with a radius s carries a uniform line charge Q on its inner conductor and a uniform surface charge -Q on its outer conductor. a) Sketch the situation including the electric field E inside and outside the cable. b) Find the electric field inside and outside the cable. c) Plot |E| as a function of the radius s.
A horizontal rod .20m long is mounted on a balance and carries a current. At the location of the rod a uniform horizontal magnetic field has magnitude .067 T and direction perpendicular to the rod. That magnetic field has magnitude by the balance and is f
A horizontal rod .20m long is mounted on a balance and carries a current. At the location of the rod a uniform horizontal magnetic field has magnitude .067 T and direction perpendicular to the rod. That magnetic field has magnitude by the balance and is found to be .13 N. What is the current?
A pendulum consists of a light rigid rod of length 250 mm, with two identical uniform...
A pendulum consists of a light rigid rod of length 250 mm, with two identical uniform solid spheres of radius 50 mm attached one on either side of its lower end. Find the period of small oscillations (a) perpendicular to the line of centers and (b) along it.
A brass rod 25.00 mm long and 5.00 mm in diameter extends horizontally from a casting...
A brass rod 25.00 mm long and 5.00 mm in diameter extends horizontally from a casting at 200°C. The rod is in an air environment with T∞ =20°C and h=30 W/m2·K. What is the temperature of the rod 6.25, 12.50, and 25.00 mm from the casting?
A brass rod 150.00 mm long and 5.00 mm in diameter extends horizontally from a casting...
A brass rod 150.00 mm long and 5.00 mm in diameter extends horizontally from a casting at 200°C. The rod is in an air environment with T∞ =20°C and h=30 W/m2·K. What is the temperature of the rod 37.50, 75.00, and 150.00 mm from the casting?
A steel drill rod that is 10 mm in diameter and 20 cm long is being...
A steel drill rod that is 10 mm in diameter and 20 cm long is being heat treated in an oil bath. The 1050°C rod is quenched and held at 700°C and then quenched a second time to 30°C. Calculate the quantities of heat that must be removed at the two quenching stages. Weight density of steel as ρw = 76 kN/m3 , The specific heat of steel is c= 0.50 kJ/(kg . ºC).
An aluminum rod with a square cross section is 1.2 m long and 5.0 mm on...
An aluminum rod with a square cross section is 1.2 m long and 5.0 mm on edge. (a) What is the resistance between its ends? (b) What must be the diameter of a cylindrical copper rod of length 1.2 m if its resistance is to be the same as that of the aluminum rod? The resistivity of aluminum is 2.75 × 10-8 Ω·m and the resistivity of copper is 1.69 × 10-8 Ω·m.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT