Choose all the answers that apply.

to qualify as a planet, a celestial object must:

have an irregular shape
revolve around the sun
orbit in a clear area
have enough gravity to have a spherical shape
have a satellite

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?