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A 3.0 kg block rests on a 30 degree slope and is attached by a string of neglible mass to a sold drum of mass 0.80 kg and radius 10.0 cm, sliding down at an acceleration of 0.85 m/s^2.
a) Find the coefficient of friction between block and slope.
b) Find the angular accleration of the drum.
c) What is the total energy of the drum and block after sliding down the slope of 6.0 m? Use Newtons Law of work or Wor-Energy to approach.
an early cyclotron had a diameter of 30 cm and used a magnet capable of applying a magnetic field of 2.0 T. What was the max kinetic energy of the protons
A railroad car with a mass of 11600 kg collides and couples with a second car of mass 18600 kg that is initially at rest. what is the final velocity of the two railroad cars after they couple
A spherical mirror is polished on both sides. When the convex side is used as a mirror, the magnification is +1/4. What is the magnification when the concave side is used as the mirror, the object remaining the same distance from the mirror.
Two objects attract each other gravitationally with a force of 2.5×10-10 while they are 0.60 apart. Their total mass is 5.0. Find out their individual masses.
A sealed 62 m3 tank is filled with 6000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. find the mass density of the oxygen gas
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, What are the magnitudes of the average force acting on the victim from the floor during the collision
Consult Interactive Solution 27.18 to review a model for solving this problem. what is the longest visible wavelength (in vacuum) for which the film will appear bright due to constructive interference
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20 C, How much energy might you lose in one week
A 4-kg rock is tied to the end of a string and twirled overhead, 1.7 m above the ground, in a 1.1-m radius, horizontal circle. How far away from its location when the string breaks will the rock hit the ground
Your 300 ml cup of coffee is too hot to drink when served at 92C.What is the mass of an ice cube, taken from a -19C freezer, that will cool your coffee to a pleasant 61C.
The refractive indices of materials A and B have a ratio of nA/nB = 1.66. What is the speed of light in material B
The range of human hearing is roughly from twenty hertz to twenty kilohertz. what are the lengths of the longest and shortest pipes
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