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A mass-spring system with 0.250kg undergoes simple harmonic motion with period 0.52 seconds. When an additional mass (delta M) is added, the period increases by 21%. A) Find delta M. Express your answer to two significant figures and include the appropriate units.
An electric power plant that would make use of the temperature gradient in the ocean has been proposed. What is the maximum efficiency of such a system
A dragster drives a quarter mile (402 m) at a constant rate of acceleration, starting from rest and finishing the race at a final speed of 450 km/hr. what average power was developed by the engine
Find out the magnitude and direction of forces
A rectangular loop of wire carrying a 4.0-A current is placed in a magnetic field of 0.60 T. What is the area of this loop
A 175 watt motor is used to lift a 129 kg container to a height of 7m. How much time does it take to lift container with the motor.
A laser is used in eye surgery to weld a detached retina back into place. The wavelength of the laser beam is 511 nm, while the power is 1.5 W. how many photons are emitted by the laser
Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness. What is the linear speed of the blade tip
A baseball pitcher throws a 145 g baseball parallel to the ground with a speed of 39.03 m/s in the +x direction. What is the velocity of the ball after leaving the bat
Two circular coils are concentric and lie in the same plane. The inner coil contains 92 turns of wire, has a radius of 0.018 m, and carries a current of 5.5 A. The outer coil contains 110 turns and has a radius of 0.032 m. What must be the magnitude ..
A copper container of mass 0.080kg and specific heat 387Jkg^-1K^-1 contains 0.3kg of water and 0.04kg of ice at 0 degrees Celsius. Find the mass of the water left in the container
The resonant frequency of an RCL circuit is 1.0 kHz, and the value of the inductance is 7.0 mH. What is the resonant frequency
A 2.0kg ball and a 4.5kg ball, each moving at 0.90m/s , undergo a head-on collision. How much mechanical energy was lost in this collision
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