An electron with kinetic energy (KE) of 24.5 cV moves into a region of uniform magnetic field B of magnitude 4.45 x 10 5 T.
The angle between the direction of B and the electron’s velocity
(cp) is 65.5°. What is the pitch p of the helical path taken by the
electron (the pitchp is the distance travelled by the electron
parallel to the magnetic field B during one period T of
circulation)

Identify two factors that determine the rate of stream erosion

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.