In a 1.05-T magnetic field directed vertically upward, a particle having a positive charge of magnitude 6.50 * 10^-6C and initially moving into the page at 3.75 m/s is deflected. Determine the magnitude and direction of the magnetic force on the particle.

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve