Describe how day length is affected by the tilt of the earths axis

In an h-r diagram most stars are found in a diagonal band from the upper left to lower right which is called?

And are facing each other of the two and the friend are on the separate more you when the moving. Your friend weighs a lot on you is push off of each other, the force exerts you exert on him. Less than

A string is wound tightly around a fixed pulley whose radius is 5.0 cm. As the string is pulled, the pulley rotates without slipping. What is the angular speed of the pulley when the string has a linear speed of 5.0 m/s?

A child sits 6 m away from the center of the merry go round. The centripetal acceleration acting on the child' is 3.6 m/s^2. What is the tangential velocity of the child? A 4.65 m/s B 21.6 C 0.6 m/s D 1.67 m/s

What leads astronomers to believe that some large moons associated with the giant planets have compositions that are roughly half water?

If a girl is standing in front of a smooth surface from which a sound is reflected the girl may hear

The buoyant force acting on an object is always equal to A. the weight of the submerged portion of the object B. the mass of the submerged portion of the object C. the weight of the fluid the object displaces

Which of the following statements are true about gravity? Check all that apply. A. Gravity doesn't exist between two stars that are far far away from each other. B. Gravity exists only near Earth. C.

A ball which is dropped from the top of a building strikes the ground with a speed of 30m/s. Assume air resistance can be ignored. The height of the building is approximately

Water in central Texas comes from the Edwards Aquifer and tends to be hard. Which of the following would you expect to find in this water? O A. Carbon dioxide O B. Calcium ions O C. Biotic factors O D. Oxygen gas