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A proton, with mass 1.67 x 10-27 kilogram and charge +1.6 x 10-19 C, is sent with velocity 7.1 x 104 meter per second in the +x direction into a region where there is a uniform electric field of magnitude 730 V/m in the +y direction. Suppose that the magnetic field has no x-component and neglect gravitational effects. Obtain the magnitude and direction of the uniform magnetic field in the region, if the proton is to pass through undeflected?
Can the atoms in a liquid helium at 4K (interatomic distance about 0.1 nanometer) be adequately represented by nonspreading wave packets, so that their motion can be described classically.
A 50-g block of an unknown material is at 530°C. It is dropped into a thermally insulated cup containing 0.07L of water at 20°C. If the temperature of the compound rises to 50°C, what is the specific heat of the unknown material?
a 50 ball of clay traveling east at 1.5 collides and sticks together with a 50 ball of clay traveling north at 3.0.
A comet of mass 1.3 1010 kg moves in an elliptical orbit around the Sun. Its distance from the Sun ranges between 0.545 AU and 79.0 AU. What is the eccentricity of its orbit
a circular coil of 16 turns and radius 10 cm carrying a current of 0.75 a rests with its plane normal to an external
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.0 MJ, What is the moment of inertia of the flywheel
Two conducting spheres, one of radius 0.010 m. and the other of radius 0.170 m., each have a charge 3.00E-08 C. and are very far apart. find the final potential (in volts) in each sphere
The focal length of the eyepiece of a certain microscope is 18.5 mm . The focal length of the objective is 7.85 mm. What is the distance from the objective to the object being viewed
A 1-megabit computer memory chip contains many 60.0 fF capacitors. Each capacitor has a plate area of 21.0x10-12 m2. Express the plate separation in nanometers
Net horizontal force due to rolling friction
An air-track glider attached to a spring oscillates with a periodof 1.17 s. What is the phase constant
explain Which ball will hit the ground first.
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