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Alpha particles from a particular radioactive source have a speed of 1.25 x 107 meter per second. Obtain how large a magnetic field is required to bend the path of the particles into a circle of 0.530 meter radius? An alpha particle has a mass of 6.64 x 10-27 kilogram and a charge of 3.20 x 10-19 C.
A 3.0 kg mass sliding on a frictionless surface explodes into three 1.0 kg masses. After the explosion the velocities of the three masses
Noether's theorem states that, for every continuous symmetry of a system, there exists a conserved quantity, e.g. energy conservation for time invariance, charge conservation for U(1). Is there any similar statement for discrete symmetries?
The population of a community was 12500 in 1985 and 36000 in 2000. Find the time it takes the population of this town to double
An adventurous archaeologist crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (See the figure). The rope will break if the tension in it exceeds 3.00×..
An archeologist on a dig finds a fragment of an ancient basketwoven from grass. What is the age of the basket
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology and some basic physics. What is the radius of the arc of the teardrop at the top
a square plate of copper with 54.0 cm sides has no net charge and is placed in a region of uniform electric field of
A car carrying a 77-kg test dummy crashed into a wall at 27m/s and is brought to rest in 0.1 s. demonstrate that the average force exerted by the seat belt on the dummy is 18,760N.
A rocket has a mass of 1.2kg and is acted upon by an impulse from the engine of 130.5 N s during the 2 seconds the engine is firing. Determine the average net force acting on the rocket while the engine fired?
Find out the lengths of acceleration and deceleration phases
Flywheels are large, massive wheels used to store energy. Find how long does it take the flywheel to reach top speed
Monochromatic light from a helium laser (λ = 632.8 nanometer) is incident normally on a diffraction grating containing 6.00 x103 lines/cm. Calculate the angles at which one would observe the first order maximum
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