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An electron moves in a circular path perpendicular to a constant magnetic field of magnitude 1.00 mT. The angular momentum of the electron about the center of the circle is 4.00 kg m2/s. Determine (a) the radius of the circular path and (b) the speed of the electron.
a ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. it rebounds from the floor to reach a height of
A pendulum consists of a sphere of mass 1.8 kg attached to a light cord of length 10.5 m, What is the tension of the cord at the lowest point
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
a muon and an antimuon are moving in opposite directions with velocities of -0.6 c and 0.6 c respectively. when they
An oak barrel with a lid of area 0.20 m2 is filled withwater. A long, thin tube of cross-sectional area 5.0 X10-5 m2 is inserted into a hole at the centerof the lid, and water is poured into the tube. When the waterreaches 12 m high, the barrel bu..
As a engineer, you are designing a heat pump that is capable of delivering heat at the rate of 22 kW to a house. The house is located where, in January, the average temperature is 10°C.
two equally charged particles held 3.2 x 10-3 m apart are released from rest. the initial acceleration of the first
A ray of light passing through air is incident on a piece of quartz (n=1.46) at an angle of 25 degrees. Calculate the deviation d of the ray as it emerges back into the air
A small object of mass 2.90 g and charge -17 µC "floats" in a uniform electric field. What is the magnitude and direction of the electric field
Two capacitors, C1 = 2x10^-6 F and C2 = 4x10^-6 F, are connected in series with an 18 V battery. Find the final charge and potential difference for each capacitor
a spaceship travels in a circular orbit around a planet. it applies a sudden thrust and increases its speed by a factor
A clean copper surface is exposed to light of wavelength 275 nm. What is the maximum speed of the photoelectrons emitted from this surface? Use the table below copper=4.7eV.
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