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An antique phonograph turntable has a kinetic energy of 2.70×10?2J when turning at an angular velocity of 48.0 rev/min
A) What is the moment of inertia of the turntable about the rotation axis?
Find the tension in the strings by drawing the FBD for the rod first. The drawing looks like a horizontal line(ceiling) with a isosceles triangle attached, the bottom of the triangle is L(rod).
Your car tire is rotating at 3.9 rev/s when suddenly you press down hard on the accelerator. What is the tires angular acceleration
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 6 excited state.find the photon wavelengths of first and second transitions
An inquisitive physics student and mountain climber climbs a 55 m cliff that overhangs a calm pool of water. At what time after release of the first stone will the two stones hit the water
A very long, thin straight line of charge has a constant charge density of 20pC/cm. How far does the electron go before it comes back
0.0023 J of energy are stored in a parallel-plate capacitor whose plates each have area 0.30 m2, find the electric field energy density between the plates
A heavy sled is being pulled by two people. The coefficient of static friction between the sled and the ground is %u03BCs = 0.579, find the minimum rope tension required to get the sled moving
Two cylindrical rods, one copper and the other iron, are identical in lengths and cross-sectional areas. What is the voltage between the ends of the copper rod
A wheel rotating about a fixed axis through its center has a constant angular acceleration of 4 rad/s^2. In cerain 4s interval the wheel turns through an angle of 80 rads.
Illustrate what is the magnitude of the net gravitational force on the mass at the origin due to the other two masses?
The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 120 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
The mass of a copper atom is 3.57*10^-25 kg, and the density of copper is 8920 kg/m^3. Determine the volume of each cube
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