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A spring hanging from the ceiling has an unstretched length of 80cm. A mass is then suspended at rest from the spring causing itslength to increase to 89 cm. The mass is pulled down an additional4 cm and released. What is the amplitude of the resulting oscillation? cm
A horizontal spring, with spring constant k, has a mass, m,attached to it and is vibrating horizontally on a friction less surface. Which one of the following statements is CORRECT?
Light with a frequency of 2.55 x 1015 Hz ejects electrons from the surface of aluminum, which has a work function of 4.28 eV. What is the minimum de Broglie wavelength of the ejected electrons? nm
A battery with an emf of 12.0 V shows a terminal voltage of 11.5V when operating in a circuit with two lightbulbs rated at 3.0 W, What is the battery's internal resistance
A 100 kg cannon at rest contains a 10-kg cannon ball. When fired, cannon ball leaved the cannon with a speed of 450 m/s. What is the recoil speed of the cannon.
A 1.3-kg block of ice is initially at a temperature of -6.0%u2218C. If 3.0*10^5 J of heat are added, what is the final temperature
In a Young's double-slit experiment with electromagnetic radiation that is not necessarily visible, What kind of radiation is being used
You need to make a series ac circuit having a resonance angular frequency of 1550rad/s using a 142 ohm resistor, a 10. microF capacitor, and an inductor. What should be the inductance of the inductor
When an ambulance is stationary, the siren gives off a sound at a frequency of 500Hz. What is the frequency of the stationary siren
It is currently popular for automobiles to use 10% ethanol / 90%gasoline mixtures (‘gasohol’) as fuel. According topopular consensus the main benefit of gasohol use is that it“reduces our dependence upon foreign oil.” Determine the ‘break-even’ fu..
A race car starts from rest on a circular track of radius 515 m. The car's speed increases at the constant rate of 0.330 m/s2. determine the speed of the race car
a glider with mass m= 0.200 kg sits on a frictionless horizontal air track, What is the displacement x of the glider from its equilibrium position when its speed is 0.20 m/s
A spring with spring constant 40N/m is attached to the ceiling, and a 5.5-cm-diameter, 1.5kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
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