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A 3.0 m long wire carrying a current of 1.0 A through amagnetic field of magnitude 10.0T experiences a force of 4.0kN entirely due to the current passing through the magnetic field. What angle does the wire make with the magnetic field?
The construction of a flat rectangular roof (3.5 m x 4.0 m)allows it to withstand a maximum net outward forceof 20060 N. At what wind speed will this roof blow outward
A particle ( m = 1 kg ) moves on the x axis. The initial position isx= 0 and the initial velocity isv(0) = 5m/s. Determine the final velocity of the particle
Four wires meet at a junction. In two of the wires currents I1 = 1.55 A and I2 = 2.15 A enter the junction. Find the current in the fourth wire and indicate its direction
In a series circuit, a generator (1436 Hz, 14.7 V) is connected to a 15.2-? resistor, a 3.85-µF capacitor, and a 5.47-mH inductor. Find the voltage across each circuit element
In a television set, the power needed to operate the picture tube comes from the secondary of a transformer. Determine the secondary voltage
two containers are at the same temperature. the first contains gas with pressure p1 molecular mass m1 and rms speed
a frictionless stick of mass m and length l lies at rest on a frictionless horizontal table. a mass km where k is some
As part of a carnival game, a 0.578-kg ball is thrown at a stack of 19.3-cm tall, 0.423-kg objects and hits with a perfectly horizontal velocity of 12.8 m/s. What is the center of mass velocity of the tall object immediately after it is struck
A man pushes a wooden crate on wooden floor. The direction of the force is 30o downward relative to the horizontal, How much force does he use in order to maintain a constant speed
A glass sphere has radius R = 6.4 cm and index ofrefraction 1.7. A paperweight is constructed by slicing through thesphere along a plane that is 2.0 cm from the center of the sphere,leaving height h = 4.4 cm.
Consider an angular motion. If the displacement is given as 250teθ, and the radius r is constant, derive the expressions for the angular velocity θ=ω, angular accelerationα, linear displacements, linear velocitytv, normal accelerationna, and tange..
A pilot flies horizontally at 630 km/h, at height h = 48 m above initially level ground. However, at time t = 0, at what time t does the plane strike the ground
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