Near the equator, the earth's magnetic field points almost horizontally to the north and has magnitude b=.5 x 10^-4t. what should be the magnitude and direction of the velocity of an electron if its weight is to be exactly balanced by the magnetic force?

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Write the correct abbreviation for each metric unit