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A 0.8 kg object that stretches a spring 7.3 cm from its natural length when hanging at rest oscillates with an amplitude of 7.3 cm. Find the total energy of the system. The acceleration due to gravity is 9.81 m/s2. Find the gravitational potential energy at maximum downward displacement. Find the potential energy in the spring at maximum downward displacement. What is the maximum kinetic energy of the object?
A 1200-kg car rolling on a horizontal surface has speed = 65km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.3m. What is the spring stiffness constant of the spring?
Suppose the AC voltage from a power company is 20000v, two transformers are used to step down the voltage. The first transformer has 5000 turns in the primary coil and 250 turns in the secondary coil; the second transformer has 4000 turns in the p..
Suppose there are two point charges, one has a charge of +1.55 * 10-6 coulombs and they are separated by a distance of 2.00 meters. if the force. determine the magnitude of the other charge in coulomb's
Rock 1 is thrown straight down from a tower. Rock 2 is thrown straight up from the same height at the same speed as rock 1. find which rock will have the greatest speed
An unstretched spring has a length of 0.30 m. while the spring is stretched to a total length of 0.60 m, it supports traveling waves moving at 4.5 m/s. How fast would waves travel on this spring if it is stretched to 0.90 m.
given an electric dipole moment p, in a region of uniform Eo. determine the torque of the dipole moment
q1. while her kid brother is on a wooden horse at the edge of a merry-go-round sheila rides her bicycle parallel to its
A power line, running above the ground at the top of 8.0 m high poles, carries a current of 90 A. What is the magnitude of the magnetic field produced by this wire at the ground
A wheel starts at rest and takes 3.00 s to rotate 37.0 revolutions at which points its angular velocity is 98.0 rad/sec. What is the constant angular acceleration of the wheel
What is eccentricity of the transfer ellipse
A pole vaulter is running with a 2.5 kg carbon pole that is 4.5 meters long, holding it level to the ground. Calculate the forces that must be exerted by each of the two hands
Two 2.2 kg masses are 1.4 m apart on a frictionless table. Each has +1.0 µC of charge. What is the magnitude of the electric force on one of the masses
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