A singly charged lithium ion is accelerated from rest through a potential difference of 4.00 x 104 V. This ion then enters a perpendicular magnetic field with a strength of 0.700 T. Indicate the force(s) acting on the electron in the diagram below.

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?