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A cylinder of radius b has a moment of inertia I = (1=2)mb2. The cylinder is rolled along a °at horizontal surface at speed v so that when it hits a ramp it will travel to a height of 50 cm and then stop. What is the initial speed v of the cylinder? The correct answer is 2.6m/s. Please show steps and formulas.
Two tuning forks oscillating coherently and in phase at 12000Hz are separated by 0.35m. Calculate the angles of minimum intensity
The proper length of one spaceship is five times that of another. The two spaceships are traveling in teh same direction, determine the speed of the other faster spaceship
A wheel 33 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. How far will a point on the edge of the wheel have traveled in this time
Assuming the can to be a cylinder with a height of 15cm and a diameter of 6.4cm , find the net inward force exerted on the vertical sides of the can due to atmospheric pressure
Two blocks with masses M1= 4.9 and M2 = 3.5 are connected with a massless string over two massless and frictionless pulleys. What is the acceleration of mass M2
Obtain the wavelength in vacuum for blue light, whose frequency is 6.58 1014 Hz
The graphite in a pencil has a resistivity of 7.84×10^?6 W*m. The graphite's diameter is 0.700 mm and its length is 40.0 mm. Find the resistance of this graphite "wire."
The left edge of the loop is on the y-axis.The x-dimension of the loop is 110 cm and the y-dimension is 40 cm. What is the magnetic flux through the loop
A certain superconducting magnet in the form of a solenoid of length 0.350 m can generate a magnetic field of 8.50 T in its core when its coils carry a current of 65 A. Find the number of turns in the solenoid.
q1. you bring a 350-g wrench into the house from your car. the house is 15 c warmer than the car and it takes 2.52 kj
The body contains many small currents caused by the motion of ions in the organs and cells. Measurements of the magnetic field around the chest due to currents in the heart give values of about 1.0 µG. how large is the current in the heart
A medical x-ray beam has wavelength 1.34nm . (a) What's the energy of one photon in this beam? (b) How many photons are in a typical chest x-ray dose that delivers 0.021J of energy?
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