An acrylic rod with a charge of +1.5 x 10-6 C and an ebonite Tod with a charge of -3.5 x 10-6 C are 10.1 cm apart. What is the electric force between the rods? Make sure units for q are in Coulombs (C) and units for r are in meters (m). Convert as needed.
22 N
14 N
52 N
O 4.7 N

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

Select the correct answer. anna will wear a black dress when she attends het cousin's wedding. which color(s) does the dress absorb? a. all colors b. no colors c. red and green d. white

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm