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A thin uniform-density rod whose mass is 3.2 kg and whose length is 2.9 m rotates around an axis perpendicular to the rod, with angular speed 35 radians/s. Its center moves with a speed of 13 m/s.
(a) What is its rotational kinetic energy? Km= 1267.97 x J
(b) What Is Its total klnetlc energy? Kmral = 7 J
a coil of radius 75 mm has 250 turns and carries a current of 2.2 a.find the magnetic field at the centre of the coil
An electric field is constant at every point on a square surface that is 0.80 m on a side. Calculate the electric flux E passing through the surface
A 17 keV electron is brought to rest with colliding twice with target nuclei as in Fig.40-15. (Suppose the nuclei remain stationary.) The wavelength associated with the photon emitted in the second collision is 140pm greater than that associated by t..
Two identical resistors are connected in parallel across a 27-Vbattery, which supplies them with a total power of 6.5 W. While thebattery is still connected, one of the resistors is heated so thatits resistance doubles.
The electricity received at an electric substation has a potential difference of 2.80 10^5V. If the requires output is 440V, what must be the ratio of the turns of the step-down transformation.
A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2 rad/s. After the disk rotates through 1 radians, the angular speed is 17rad/s. What is the magnitude of the angular acceleration?
A 5.000kg mass starts from rest and slides down on an inclined plane, hits a bumper at the bottom of the inclined plane and bounces back up the inclined plane and comes to rest again. Through the collision with the bumper, 0.700J of energy is lost.
initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of ?1 = ?2 = ?3 = 51° with the direction of the y axis, What percentage of the initial intensity is transmitted by the system
A 0.5 kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 5.0 N for a distance of 4.0 m. How much kinetic energy does the block gain
1 research any one species and describe its ecological niche. for one factor of the niche describe what you think might
Two waves are traveling in opposite directions on the same string. The displacements caused by the individiual waves are given byy1=(30.0 mm)sin(9.39πt -1.66πx) and y2=(39.0mm)sin(3.54πt + 0.552πx). Note that thephase angles (9.39πt - 1.66πx) and(3..
Wire 1 carries a 2.0 A current while wire 2 carries a 4.0 A in the same direction. If the wires are 15 cm apart, assume each wire is 1000 km long. Find the magnetic field magnitude and direction experience by at wire 2 due to wire 1
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