Avelocity selector is built with a magnetic field of magnitude 5.2 t and an electric field of strength 4.6 × 10 ^4 n/c. the directions of the two fields are perpendicular to each other. at what speed will electrons pass through the selector without deflection? let the charge of an electron q = −1.6 × 10 ^ −19

a.8.8 × 10^3 m/s
b 2.4 × 10 ^ - 15 m/s
c 7.9 × 10 ^ 13 m/s
d 2.0 x 10 ^ 4 m/s

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Which of the following list the divisions of the geologic time scale in order from longest to shortest

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.