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A rectangular loop of wire carrying a 4.0-A current is placed in a magnetic field of 0.60 T. The magnitude of the torque acting on this wire when the plane of the loop makes a 30° angle with the field is measured to be 1.1 N ? m. What is the area of this loop?
A square plate of copper with 47.0 cm sides has no net charge and is placed in a region of uniform electric field of 79.0 kN/C directed perpendicularly to the plate. (a) Find the charge density of each face of the plate. (b) Find the total charge ..
A standing wave on a 75.0cm long string has three antinodes. The Wavelength is .50m. If the string has linear mass density 3.78×10?5kg/m and tension 10.5N , what are the wave's frequency
A small rocket to gather weather data is launched straight up. Several seconds into the flight, its velocity is 120 m/s, What is the net force on the rocket
A uniform plank of length 4.9m and weight 228N rests horizontally on two supports, with 1.10m of the plank hanging over the right support. To what distance x can a person who weighs 449N walk on overhanging part of the plank before it just begins ..
A girl of mass m 1 =60 m_1 = 60 kilograms springs from a trampoline with an initial upward velocity of v i =8.0 v_i = 8.0 meters per second, What is height max with respect to the top of the trampoline
Find out direction and magnitude of force
A 2300 kg truck traveling north at 39 km/h turns east and accelerates to 57 km/h. What is the change in the truck's kinetic energy
A challenge gaining prominence throughout the planet is the increased need for \"green\" or sustainable energy. In certain parts of the country, how much energy does the wind turbine generate
A large truck collides head-on with a small car. how do the forces acting between the truck and car compare during the collision
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.6020 N when separated by 50 cm, center-to-center.
A standing observer perceives a train whistle to have a frequency of 300 Hz. compute the frequency of the sound waves emitted from the train
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.5 N-s, what is the mass of the ball
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