If a person of mass 100.0kg climbs a 2.00m high set of stairs in 4.00s, how much work do they do?

Which of the following is not am example of a polymer? protein nylon kevlar concreta

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic