HELP! An electron with a horizontal speed of 4.7 x 10^6 m/s passes through two horizontal plates, as shown below. The magnitude of the electric field between the plates is 150 N/C. The plates are 8.5 cm long.

a. Calculate the vertical component of the electron's final velocity

b. Calculate the final velocity of the electron.

Determine the maximum r-value of the polar equation r =3+3 cos 0

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.