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The magnetic field component of the electromagnetic wave is 15.0 μT. Obtain the magnetic energy density of the wave?
A 0.25-kilogram mass on a vertical spring oscillates at a frequency of 1.0 Hz. If a 0.45-kilogram mass were instead suspended from the same spring, what would be the frequency of oscillation
The axle of a wheel is mounted on supports that rest ona rotating turn table as shown in the gure. The wheel has angular velocity !1 = 44:0 rad/s about its axle, and the turntable has angular velocity!2 = 35:0 rad/s about a vertical axis.
A man of mass 85.0kg is escaping a burning building using a rope that will break if the tension exceeds 700N. With what acceleration must he slide down the rope
Two small insulating spheres with radius 4.00×10-2 are separated by a large center-to-center distance of 0.595. One sphere is negatively charged, with net charge -2.40, and the other sphere is positively charged, with net charge 3.70. The charge i..
A loop of diameter 21 cm is placed in a uniform electric field of magnitude 7.4 102 N/C. What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop
Write the expression of the force fl j corresponding to the Uu potential energy term. Derive the expression of the distance r m i n at which Uu has its minimum value, as a function of the parameters a and/or E.
Calculate the minimum amout of work (in joules) required to freeze one liter of water originally at temperature T = 20 degrees celsius
During a sleet storm, the roads are covered with frictionless ice. A car of mass 1000 kg traveling east at a speed of 6m/s slams into a stationary truck of mass 2000kg. Determine the velocity of the truck just after the collision
A horizontal force of 750 N is needed to overcome the force of static friction between a level floor and a 250-kg crate. what is the coefficient of static friction
consider the interface between atmospheric air and a body of water both at 17 degc.a. what are the mole and mass
An electron is accelerated from rest through a uniform electric field of 4000 V/m. How much is the change of potential energy of this electron
A race car accelerates uniformly as it leaves the pit area, going from rest to 330 km/h in a semi circular arc with a radius of 200 meter. Find the radial acceleration of the car at this time
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