In which of the following is a skater NOT accelerating? A-going straight while speeding up
B-going straight at constant speed
C-making circles at constant speed
D-going straight while slowing down​

For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.

Which statement correctly describes the relationship between frequency and wavelength?

Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.