What causes the cycle of seasons on Earth?

the input force of a third class lever is 5 cm away from the fulcrum. the output force is 20 cm away from the fulcrum. what is the ideal mechanical advantage of the lever

The stars in the sky are organized into groups of stars called constellations which appear near each other in the sky but are not necessarily close together in space. How many constellations are currently accepted by the IAU?

7 places that carbon exists

A ship sends out a 1200 Hz sound wave, which has a wavelength of 1.2 m in the water. It reflects off the ocean floor and returns to the ship in a total time of 5 seconds. How deep is the ocean at this location?

Carlota does 2000 J of work on a machine. The machine does 500 J of work. What is the efficiency of the machine? 4% 25% 75% 400%

The measure of the force of gravity on an object, expressed as mass of the object times acceleration due to gravity is called

Which of the following jobs does not require good swimming ability

An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation at temperature 2 T

Which of the following is an instance of persuasive speaking? a. a coach reviewing the offensive plays for next week's game b. a lawyer explaining the details of a plea bargaining agreement to her client. c.

What is needed to support life