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a motor with a brush-and-commutator arrangement has a circularcoil with radius 16 cm and230 turns of wire the magnetic
a microwave transmitter emits electromagneticwaves of a single wavelength the maximum electric field122 km from the
a microwave transmitter emits electromagnetic waves of a singlewavelength the maximum electric field 122 km from the
if 350 mw of power at 432 kv rms arrives at a town from agenerator via 310 omega transmission linesa calculate the emf
how would you work the problem if the net electric field produced at the center of the circle made an angle of 293
two flat surfaces are exposed to a uniform horizontalmagnetic field of magnitude 047t when viewed edge-on the
an airplane pilot fell 365 m afterjumping from an aircraft without his parachute opening he landedin a snowbank
a helicopter has 30 m long rotor blades rotating at an angular speed of 63 rads what is tangential speed of each blade
a projectile is fired at an upward angle of 45deg from the topof a 288 m cliff with a speed of212 ms what will be its
a solid cylinder has a moment of inertia 2 kg m2and is rotating freely at a fixed angular velocity of 12 rads asecond
a transformer consisting of two coils wrapped around an ironcore is connected to a generator and a resistor there are
a hamster gets on a stationary wheel with radius 015 m and runs until wheel rotates at angular speed of 120 rads in 40
in some places insect zappers with their blue lights are afamiliar sight on a summers night these devices use a
to make a bounce pass a player throws a 060-kg basketball towardthe floor the ball hits the floor with a speed of 54ms
when spiking a volleyball a player changes the velocity of the ball from 42ms to -24ms along a certain direction if the
a person who weighs 635 n steps onto aspring scale in the bathroom and the spring compresses by075 cma what is the
a string is wrappedaround a cylinder of radius 65 cm and pulled so that the tensionin the string is 14 n what is the
an airplane propeller is rotating at 1900 rpm revmina compute the propellers angular velocity in radsb how many seconds
an electron enters a region of magnetic field of magnitude 0010 0t traveling perpendicular to the linear boundary of
a 1050-kg sports car is moving westbound at 150 ms on a levelroad when it collides with a 6320-kg truck driving east on
a cosmic-ray proton in interstellar space has an energy of 100 mev and executes a circular orbit having a radius equal
consider a galvanometer with an internal resistance of 60omeganbsp if the galvanometer is being used as an ammeter with
a 10kg wooden box is resting on wooden ramp that can berotated to any angle from 0o to 90o what is the maximum angle
three 05 kg particles form an equliateral triangle with 06 msides the particles are connected by rods of negligible
when you drop a 40 kg apple earth exerts a force on it that accerlerates it at 98 mss toward earths surface according