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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.
A copper wire with a diameter of 1.3 mm has a uniform electric field of 0.45 V/m imposed along its entire length. The temperature of the wire is 36°C. What is the current density in the wire
A mountain climber stands at the top of a 32.5-m cliff that overhangs a calm pool of water. What initial velocity must the second stone have had, given that they hit the water simultaneously
Calculate the longest three wavelengths and the series limit for the Paschen (n2 = 3) and the Brackett (n2 = 4) series, and plot both series on the same linear scale.
A 13000 kg railroad car travels alone on a level frictionless track with a constant speed of 17 m/s. A 6500 kg load, originally at rest, is dropped onto the car. What will be the car's new speed.
Two loudspeakers in a plane, 6.0 apart, are playing the same frequency. If you stand 14.0 in front of the plane of the speakers, What is the frequency of the sound
A 4700000 kg spaceship moves away from Earth with a speed of 0.71 c. What is the magnitude of the ship's classical momentum
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
An object is in front of a converging lens (f = 0.21 m). The magnification of the lens is m = 4.8. Through what distance should the object be moved
What is the acceleration of two falling sky divers (mass 112.0 kg including parachute) while the upward force of air resistance is equal to one-fourth of their weight.
If in Joule's paddlewheel experiment a block of mass 10 kg is allowed to fall through 22.5 meters and the mass of the water is 50 grams
A 2.50 g lead bullet traveling at 560 m/s strikes a target, converting its kinetic energy into thermal energy. It's initial temperature is 40.0°C. Find the heat required to melt the bullet
A parallel plate capacitor is made of two 5cm x 5cm square plates that are separated by .012mm. The plates are charged to plus and minus 9.8nC each. What is the energy stored in the capacitor
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