A dancer starts 3 meters from the curtain then moves 8 meters from the curtain in 15 seconds. What was his velocity?

Energy is transferred by the process of convection from the hot water at the bottom of the tank to the cooler water at the top. Explain how

Q. A body weighs 50 N in air and when immersed in water it weighs only 40 N. Find its relative density.

Which of the following is true for catalysis of a reaction by an enzyme? Group of answer choices a. The equilibrium constant decreases b. The initial velocity decreases c. The standard free energy of the reaction increases d.

In an ecosystem, why can only one species fill an ecological niche?

Where is visible light located on the electromagnetic spectrum and why?

A person carries a mass of 10 kg and walks along the + x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 20 J B) None of the other choices is correct. C) 0 J D) 200 J

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

What is velocity-time graph?

Whitch tool could be used to mesure the mass of. a package being mailed

Most of an atom is empty space. a. True b. False