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A charged particle is moving downward with an initial speed of 5 × 10^6 m/s when it encounters a uniform magnetic field that points east to west.
(a) If the initial force on the particle is to the north, is the particle positive or negative?
(b) If B = .25 T and the particle has a charge- to-mass ratio of 4 × 10^7 C/kg, what is the radius of the particle's path?
(c) What is the particle's speed after it has been in the field for 2 × 10^-4 seconds?
A transformer has 100 turns in the primary with a voltage of 100V, and 200 turns in the secondary with a voltage os 200V. what will be the current in the secondary
A rowboat crosses a river with a velocity of 3.51 mi/h at an angle 62.5° north of west relative to water. The river is 0.8 mi wide and carries an eastward current of 1.25 mi/h. How far upstream is the boat when it reaches the opposite shore.
Heat is added to 1.00 10^3 cm^3 of water at atmospheric pressure. The water's temperature increases by 30.9°C. Find the increase in the water's internal energy
Some good estimates about the human body can be made if it is assumed that we are made mostly of water. estimate the number of water molecules in that person
The rectangular coils in a 315-turn generator are 15cm by 15cm .What is the maximum emf produced by this generator when it rotates with an angular speed of 515rpm in a magnetic field of 0.40T ?
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
An unknown piece of material with a mass of 5.1 kg and density of 1422 kg/m^3 is suspended from a string and then completely immersed in a container of water. Determine the volume of the piece of material
A man takes his dog out for a walk. The dog has no legs and is dragged along sidewalk on a little sled (mass of dog + sled = 13.0kg). The sidewalk exerts a frictional force of 14.0N.
A horizontal force of 5.0 N accelerates a 4.0 kg mass, from rest, What friction force acts on the mass
A cylindrical aluminum pipe of length 1.33 m has an inner radius of 1.90 10-3 m and an outer radius of 3.00 10-3 m. What is the resistance of this unit
A 0.80 kg ball and a 4.20 kg ball are connected by a 78.0 cm long massless, rigid rod. The structure rotates about its center of mass at 250 rpm. What is the rotational kinetic energy of the structure?
A 10,000 Kg spaceship is traveling without power 500 m/s near an anomaly in space where the potential energy is U = -10-7r4 + 30 r2. how far from the anomaly can it get
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