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A 25-kg object is being lifted by pulling on the ends ofa 1.00-mm-diameter string that goes over two 3.00-m-high polesthat are 4.0m apart. How high above the ground will the object be when the string breaks?
A particle moves in a plane with a constant radial velocity rhat = 4 m/s. The angular velocity is constant and has magnitude θhat = 2 rad/s. When the particle is 3 m from the origin, find the magnitude of the acceleration.
q1. a rocket moves with a velocity of 0.818c to the right with respect to a stationary observer a. an observer b moving
The distance between two telephone poles is d = 52.0 m. How much tension does the bird produce in the wire
A block with mass m = 4 kg is sinking with constant acceleration aT = 1.9 m/s2 into the ground. The acceleration due to gravity is g = 9.81 m/s2. In what direction is the normal force
How many kilograms of air do you exhale? Assume that the density of air is 1.3 kg/m3.
question1a solid cylinder of mass 8.9 kg and radius 32 cm is yoked to a spring as shown. to be precise axle of the
A 0.99-cm-diameter microscope objective has a focal length of 2.6 mm. It is used in visible light with a wavelength of 532 nm. What is the resolving power of the objective
What is constant acceleration
The primary of a step-down transformer has 240 turns and is connected to a 120 V rms line. The secondary is to supply 29 A at 10 V. (a) Find the current in the primary. (b) Find the number of turns in the secondary, assuming 100% efficiency.
A long ladder weighing 100 N is rested against a smooth wall. find the magnitude of the normal force of the wall on the ladder
A thick cylindrical shell of inner radius a= 5 cm and outer radius b= 10 cm and has a net charge ZERO. Consider 1m length of the cylinder and find the inner and the outer surface charge densities
A 4.60 kg block of ice at 0°C is added to an insulated container partially filled with 10.6 kg of water at 15.0°C. Find the mass of the ice that was melted
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