A20.0 ω, 15.0 ω, and 7.00 ω resistor are connected in parallel to an emf source. a current of 7.00 a is in the 15.0 ω resistor. calculate the equivalent resistance of the circuit. answer in units of ω.
what is the potential difference across the source?
answer in units of v.
calculate the current in the 20.0 ω resistor. answer in units of a.

Modern atomic theory states that the atom is a diffuse cloud of surrounding a small, dense nucleus. a) electron b) neutron c) proton d) quark eliminate

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.