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A uniform meter stick is in static rotational equilibrium when a mass of 220g is suspended from the 5.0-cm mark, a mass of 120g is suspended from the 90-cm mark, and the support stand is placed at the 40-cm mark. What is the mass of the meter stick?
The water in a tank is at a gauge pressure of 259,181 Pa. If the bottom of the tank that has an area of 0.6 m2, what is the force on the bottom of the tank
A wheel is rotating freely at angular speed 920 rev/min on a shaft whose rotational inertia is negligible. What fraction of the original rotational kinetic energy is lost
The magnetic force exerted on a 3.0-m segment of straight wire is 1.9 N. What is the angle between the wire and the magnetic field
When a certain paramagnetic material is placed in an external magnetic field of 1.50T , The magnetic permeability of this material is
so hydrogen atoms have a thermal velocity of about 1000 m/s. How does the energy stored in the magnetic field compare with the kinetic energy in a given volume of space.
two ocean liners with a mass of 50,000 metric tons are 50 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction
Two small metallic spheres, each of mass m = 0.45 g, are suspended as pendulums by light strings from a common point, calculate the magnitude of the charge on each sphere
A wooden raft has a mass of 67 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
Two people, A and B, with masses of 50-kg and 60-kg, correspondingly, stand on a frictionless surface 10m apart. B pulls on a connecting rope, giving A an acceleration of 0.92m/s2 towards B. a) what is B's acceleration toward A.
A somewhat longer cable replaces the old and is attached to the steel bar 5 m from its upper end, connecting to the same place on the wall as before and maintaining the same angle between the bar and the wall.
Find the rotational frequency of the wheel.
q1. how did pavlov and watsons focus on scientific inquiry of behaviours differ from earlier viewpoints of
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