If the speed of an electron travelling at right angles to the magnetic field is doubled, how many times as great is the force on the electron?

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.