What is the total charge of the radon nucleus? (the neutral radon atom has 86 electrons.) tries 0/20 what is the magnitude of its electric field at a distance of 1.96×10-10 m from the nucleus? tries 0/20 what is the magnitude of the force on an electron at that distance? tries 0/20 what would the magnitude of the force be if the distance of the electron from the nucleus were halved?

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest