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A small wooden block with mass 0.900 is suspended from the lower end of a light cord that is 1.76 long. The block is initially at rest. A bullet with mass 0.0102 is fired at the block with a horizontal velocity. The bullet strikes the block and becomes embedded in it. After the collision the combined object swings on the end of the cord. When the block has risen a vertical height of 0.750 , the tension in the cord is 4.88 .
The drag force acting on a sphere moving through a liquid like water is given by F=6?vr? where F is the drag force, v is velocity of the sphere, r is radius of the sphere, What are the dimensions of viscosity
An astronaut measures her mass by means of a device consisting of a chair attached to a large spring. what is the mass of the astronaut and chair
Two positive point charges, each of which has a charge of 4.3E-9 are located at y=+.10m and y+-.10m, What is the direction of this force
A beam of sunlight encounters a plate of crown glass at a 52.70° angle of incidence. Find the angle between the violet ray and the red ray in the glass
An electron of energy 400 eV moves at right angles to a uniform magnetic field along an arc of radius 2.0cm. What is the energy of the second electron
Draw a free body diagram for each situation and find the magnitude of the larger of the two individual forces in units of N. Find out the magnitude of the smaller of the individual forces in units of N.
A microscope with a tube length of 200 mm achieves a total magnification of 400x times with a 20x times objective and a 20x times eyepiece. How far is the sample from the objective lens
A long, straight wire of length 1.3 m carries current I = 3.1 A. what is the magnitude of the force on the wire
The International Space Station is orbiting at an altitude of about 370 km above the earth's surface. what is the period of the International Space Station's orbit
A 19.8-g piece of Styrofoam carries a net charge of -0.646 µC and is suspended in equilibrium above the center of a large, What is the charge per unit area on the plastic sheet
question a system consists of three particles with these masses and velocities mass 3.2 kg moving north at 3.1 ms mass
7.4 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.365. find the magnitude of the external force acting on the crate
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