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When a wheel rotates about a fixed axis at a constant rate how do the following quantities change with the distance from the center of the wheel? Do they increase, decrease or stay the same and why?
A baseball is hit from 1m above the ground and attains a maximum height of 21m and horizontal distance of 100m. a fielder can catch the ball between the ground and 3m. over what horizontal distance
Two harmonic oscillators A and B, of mass (m) and spring constants kA and kB, respectively, are coupled together by a spring of spring constant kC. Find the normal frequencies w' and w" and describe
A simple harmonic oscillator has a mass M0 on a spring of force constant k. The system is damped. It takes 10 cycles for the amplitude of the oscillations to decay to 37% of the original value (i.e.
The wires carry current in opposite directions. If the current carried by one of the wires is quadrupled and the distance between the wires is quadrupled, then what will the force's magnitude be (as
Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.3×10^4 when at a distance of 2.3×10^11 from the center of the sun, what is its speed w
A sound wave with intensity 16 mW/m2 interferes destructively with a sound wave that has an intensity of 19 mW/m2. What is the intensity of the superposition of the two?
During an adiabatic process, the temperature of 7.30 moles of a monatomic ideal gas drops from 545°C to 291°C. Find the change in internal energy?
The red color of hemoglobin is a consequence of the strong absorption by this protein of yellow and green light in the wavelength range 500-600nm, and also of blue light in the wavelength range of 4
A Carnot engine operates between the temperatures 490 K and 300 K. How much heat is discarded for the engine to produce 2500 J of work?
The mass of the silver atom is 1.800×10-25 kg. What is the separation of the two silver atom beams as they leave the magnet?
A mass on a spring oscillates with a period of 2s. It's maximum displacement is 0.25m. The mass is at x=0 at t=0. (Assume there is no damping.). If the total energy is 0.1J, what is the mass and wha
What must the volume ratio of concrete to Styrofoam be if the pontoon is to float with 45.9% of its overall volume above water?
Concider a plane circular surface (radius of 2cm) located at the center of the solonoid with its axis coinsidal with the axis of the solonoid. What is the magnetic flux through the surface. (1wb=1t-
Ages later when the universe was 1s old, the temperature fell to only 10^10. What is the probability that two average protons could fuse in this second?
Students want to construct a scattering experiment using a power source of 5.5 Mev alpha-particles to scatter from a gold foil.
You are a blackbody with a temperature 98.6 degrees F. (a) What is the total energy density of the radiation you emit?
After a star like the Sun stops producing energy via fusion, it collapses into a degenerate object called a white dwarf, with a size similar to Earth. Take the mass of the Sun to be 2.00 x 10^30kg,
It is important for nuclear engineers to know the thermal properties of neutrons in a nuclear reactor. Assuming a gas of neutrons in thermal equilibrium, find v "bar" and v* (*indicates most probabl
Find an expression for the value of capacitance C if the charging energy associated with the coulomb blockade for the capacitor is the same as Eo.
In a certain binary-star system, each star has the a mass of 1.20 x 1030 kg, and they revolve about their center of mass. The distance between them is 1.5 x 108 km. What is their period of revolution
A orbiting satellite stays over a certain spot on the equator of (rotating) Earth. What is the altitude of the orbit (called a "synchronous orbit")?
Engine oil at 200 oC is forced over a 20-cm-square plate at a velocity of 1.2 m/s. The plate is heated to a uniform temperature of 60°C. Calculate the heat lost by the plate.
A slingshot fires a pebble from the top of a building at a speed of 15.0 m/s. The building is 30.0 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground when the p
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.81 x 105 N. In being launched from rest it moves throu