A voltmeter with resistance RVRVR_V is connected across the terminals of a battery of emf EEEMF and internal resistance rrr. Find the potential difference VmeterVmeterV_meter measured by the voltmeter.

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

The heliocentric and the geocentric models of the solar system included these central principles