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There are two parallel straight wires with the length of 40 cm long and they are separated by 5 cm. the current on the left wire is 12 A, and the current on the right is 15 A. What is the magnitude and direction of the magnetic field by the left side wire at the location of the right side wire? what is the magnetic force on the right side wire?
To keep a door closed, a wooden stick is wedged between the floor and the doorknob. The stick exerts at B a 45-lb force directed along line AB. Swap that force with an equivalent force-couple system at C.
A wheel rotates with a constant angular acceleration of 3.75 rad/s2. Assume the angular speed of the wheel is 2.20 rad/s at ti = 0. Through what angle does the wheel rotate between t = 0 and t = 2.00 s
Illustrate what are his weight and mass on earth and in interplanetary space where there are no nearby planetary objects?
A 2.94g aluminum bullet at 31.0°C is fired at a speed of 236 m/s into a large block of ice at 0°C, in which it embeds itself. What quantity of ice melts
A 220g baseball is pitched at 25m/s spinning at 43rad/s. What fraction of its kinetic energy is rotational
A 2.0-nF parallel plate capacitor with a sheet of mylar (k = 3.1) filling the space between the plates is connected to a 90 V battery. Determine the change in the charge on one of the plates
A certain copper power line carries a current of 52.7 A, and its resistance per unit length is 1.15 10-5 /m. If a bird is standing on this line with its feet 4.0 cm apart,
A spherical weather balloon is filled with hydrogen until its radius is 3.40 m. Its total mass including the instruments it carries is 10.0 kg. Find the buoyant force acting on the balloon
A boy on board a cruise ship drops a 30.0 g marble into the ocean. what is the terminal speed of the marble
Typical large values for electric and magnetic elds attained in laboratories are about 1:0104 V/m and 2.0 T. Determine the energy density for each eld
The magnetic flux through a circuit is reduced from 35 Tm^2 to 5 Tm^2 in 0.1s. The current induced in the circuit is 3.6 mA. What is the resistance to the circuit
A magnetic field is oriented at an angle of 39 to the normal of a rectangular area 4.8cm by 7.7cm If the magnetic flux through this surface has a magnitude of 4.6×10-5 T-m2 ,
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