Which term describes an observable fact, event, or circumstance?

A. Experiment

B. Theory

C. Hypothesis

D. Phenomenon

What are 4 types of friction

What happens to your behind when you sit for too long?

A pulse is a non-recurrent wave. True False

Which statement is true for a sound wave entering an area of warmer air? The wave travels faster and with the same wavelength. The wave travels at the same speed but with an increased wavelength.

O núcleo de um átomo possui 5 prótons e 6 nêutrons. Determine o número atômico (Z) r o. número de massa (A)

A ballet student with her arms and a leg extended spins with an initial rotational speed of 0.90rev/s. As she draws her arms and leg in toward her body, her rotational inertia becomes 0.80 kg⋅m2 and her rotational velocity is 4.1rev/s.

The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use?

Which has more gravitational potential energy - - a cliff diver at the top of the cliff or a cliff diver at the bottom of the cliff?

A skydiver with a mass of 60 kg jumps from an airplane. Five seconds after jumping the force of air resistance is 300 N. What is the acceleration of the sky diver, five seconds after jumping?

How many basic wave forms are there? A.) 1 B.) 2 C.) 3 D.) 4