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a) A single charged positive ion moves with a velocity of(2i+j-k) 10^3 m/s in a region of space where the magnetic field is given as (0.6i +0.8j-0.4k) T. Discover the magnitude of the magnetic force exerted on the ion.
b) A proton (charge, +e = 1.6 x 10^-19 C), moving at a speed of 3 x 10^5 m/s in a magnetic field, feels a zero force when this proton moves horizontally toward the south. But, the proton experiences a horizontal force of 6.0 x 10^-14 N in a direction toward the east when it moves vertically downward inside the field. Discover the magnitude and direction of the magnetic field in the region.
a 1500-kg automobile is pulled behind a tow truck. the power exerted by the tow truck on the car is a constant 50 kw.
A copper block is suspended from a wire, as in part 1 of the drawing. A container of mercury is then raised up around the block, Find the ratio of the fundamental frequency of the wire in part 2 to the fundamental frequency in part 1
a 195-watt light bulb uses an average power of 195 w when connected to an rms voltage of 120 v.a what is the resistance
Two cars, A and B, are traveling in the same direction, although car A is 158 m behind car B. The speed of A is 26.8 m/s, and the speed of B is 18.6m/s. How much time does it take for A to catch B?
A transformer is constructed that has 120 turns of wire on the primary side and 430 turns of wire on the secondary (load) side. what is the AC current measured on the secondary side
The solar wind is a thin, hot gas given off by the sun. Charged particles in this gas enter the magnetic field of the earth and can experience a magnetic force.
Positronium is a hydrogen atom with the proton replaced by a positron (like electron, but w/ positive charge). Calculate E1 for positronium.
Two ice skaters face each other, one is 100 kg and the other is 50 kg. They push against each other's palms and move apart. What is the speed of the lighter skater
2.0 moles of monatomic gas at atmospheric pressure has a total energy of 7480 J. what is the volume occupied a rigid cylinder by the gas
a person pulls on a 50Kg desk with a 200N force acting at 30 angle above the horizontal. the desk does not budge. draw a force diagram for the desk. Write down the equation that describes the forces which act in the x-direction.
Fuel systems of modern cars are designed so thermal expansion of gasoline doesn't result in wasteful and polluting fuel spills. How large an expansion tank do you specify
A 1000 kg airplane touches down on an icy runway, heading northward at 110 km/h. Find the speed and direction of the combined wreckage
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