A figure skater has a moment of inertia of 87 kg*m2 with her arms extended outwards. She has a rotational velocity of 1.93 rad/s. She then draws her arms inwards giving her a new moment of inertia of 65 kg*m2. What is her new angular velocity? rad/s.

How much work must she do to draw her arms inwards?

J.

Which of the following represents an upside-down image?

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?