A helium-filled spherical balloon (whose mass, when empty, is 300 g) has a 0.90 m radius at liftoff where air pressure is 1.0 atm and the temperature is 25 degrees C. When balloon expands, the helium temperature is 210 K, and pressure drops to 0.019 atm. What is the weight of a load that needs to be attached to the balloon to keep it at the verge of lifting? (air density is 1.225 kg/m3, and helium density is 0.179 kg/m3)

the body's situation won't change the forces are equal opposit and on the same body

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.

answera compound;

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.