Which of the following would decrease the mechanical advantage

A) a fulcrum

B) a fixed pulley

C) friction

D) heat

In a body-centered cubic structure, every atom (except those on the surface) has eight neighbors. which arrangement of balls serves as the best model for this structure?

What do you call the curved upper surface of the water that comely appears when using a graduated cylinder

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.

Short wavelengths, from high-pitched sounds, cause displacement of the basilar membrane near the oval window. true false

Rosie is reading an article about living cells. The article states that all living cells are composed of one or more cells, that the cell is the basic unit of structure, function, and organization in all organisms, and that all cells come from

A moving object has a kinetic energy of 150 j and a momentum with a magnitude of 30.0 kg•m/s. determine the mass and speed of the object

How does changing depth affect water pressure

The mass of a rigid rod is 0.60 kg and its length is 39.0 cm. Calculate the moment of inertia (in kg · m2) for the rod if it is pivoted about an axis through the center of mass of the rod. (Assume the axis is perpendicular to the rod.

Does a rolling basketball have kinetic energy

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).