3. Which of the following is not a part of an electric bell? 3. Gong
b. Hammer
c Soft iron bar
d. Heating element
of olor
electrons Calen
electric chann​

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

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Aparticle moves in a circle 1.50 m in radius . through what angle in radians does it rotate if it moves through an arc length of 2.50m? what is the angle in degrees?