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Find the net force (magnitude and direction) acting on a 0.5C charge due to a 3C charge 1.2 meters away at an angle of 30 degrees (counter clockwise from the x-axis) and a -3C charge 2 meters away at an angle of -90 degrees.
Is there a place (x,y) where the 0.5C charge's net force is 0?
A boat crosses a river with a width w=160m in which thecurrent has a uniform speed of 1.50m/s. What is the speed of the boat relative to a stationary shore observer
The energies associated with molecular rotation and vibration are quantized and photons can be emitted or absorbed by molecules making transitions from one rotational or vibrational state to another.
A hollow, conducting spherical shell, of radius 3.50 cm, has charge ?9.14×10?5 C. What is the strength of the electric field 2.50 m from the center of the sphere, What is the direction of the field
State and explain magnetic dipole moment µ of a coil of number of turns N and area A carrying current i
A wire has a resistance of 22.9 ?. It is melted down, and from the same volume of metal a new wire is made that is three times longer than the original wire. What is the resistance of the new wire
A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.9 m/s. how far does the sled travel on the level surface before coming to rest
A spring is attached to the bottom of an empty swimming pool, Determine the percentage of the block's total volume that is hollow
A long solenoid has 1400 turns per meter of length, and it carries a current of 3.5 A. Find the torque exerted on the coil
A diving bell with interior air pressure equal to atmospheric pressure is submerged in Lake Michigan at a depth of 142.1 m. estimate the magnitude of the net force on the viewing port
A 671-kg cannon fires a 18.5-kg projectile with a speed of 273 m/s with respect to the muzzle. what is the speed of the projectile with respect to the ground
The yellow light from a helium discharge tube has a wavelength of 587.5 nm. Calculate the number of lines per centimeter on the grating
An archer pulls her bowstring back 0.388 m by exerting a force that increases uniformly from zero to 229 N. What is the equivalent spring constant of the bow
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