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A spring+mass oscillates with simple harmonic motion about the point y=0. When the mass is located at y=ymax/3 what is the ratio of kinetic energies, k/kmax?
two parallel mirrors are a distance d apart. An object is placed 1.0 inch in front of the right-hand mirror. Calculate the distance between the mirrors
A 92kg astronaut and a 1200 kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.14m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact wi..
Unpolarized light passes through two polarizers in turn with polarization axes at 41° to one another. What is the fraction of the incident light
How various meters away is a cliff if an echo is heard 0.475 s after the original sound? Assume that sound traveled at 343 m/s on that day.
A falling skydiver has a mass of 109 kg. What is the magnitude of the skydiver's acceleration
Suppose 12.6 g of oxygen gas (O2, 32.0 g/mol) is heated at constant atmospheric pressure from 17.0°C to 110°C. How much energy is transferred to the oxygen as heat
In a rotor ride, which is a large hollow cylinder that is rotated rapidly around its central axis, people are rotated at a high speed. What minimum speed must the cylinder have
In a certain cyclotron a proton moves in a circle of radius0.700 m. The magnitude of the magnetic field is 1.40 T. What is the oscillator frequency? What is the kinetic energy of the proton?
An undersea research chamber is spherical with an external diameter of 4.60m . The mass of the chamber, when occupied, is 51100kg. What is the buoyant force on the chamber
A motorist travelling at 17m/s encounters a deer in the road 49m ahead. If the maximum acceleration the vehicle's brakes are capable of is -7 m/s2. If his or her reaction time is 1.9987 s, how fast will (s) he be travelling when (s) he reaches dee..
you and maria each own identical spaceships. As you fly past maria, you measure her ship to be 89 m long and your own ship to be 100 m long. How fast is Maria moving relative to you
a parallel-plate capacitor is designed so that the plates can be pulled apart. the capacitor is initially charged to a
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