6. Frustrated with HISTORY, (you never get frustrated in physics) you open the second story classroom window and (to the horror of your teacher but to the secret delight of your
classmates) violently hurl your history book out the window with a velocity of 18 m/s at an
angle of 35 degrees above the horizontal. If the launch point is 6 meters above the ground,
how far from the building will the book hit the parking lot?

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Positrons are spontaneously emitted from the nuclei of