Why would adding oil to the moving parts of a machine increase its efficiency?

How does the force required to lift an object in water compare to the force needed to lift the same object on land? It is the exactly the same for the same object. It can be either greater or less, depending on the object. It is more. It is less.

Calculate the work done by an applied force of 71.5 N on a crate for the following. (Include the sign of the value in your answer.) (a) The force is exerted horizontally while pushing the crate 4.30 m.

Type of force that holds the nucleus of an atom together

A metal object is suspended from a spring scale. The scale reads 943 N when the object is suspended in air, and 799 N when the object is completely submerged in water. a. Find the volume of the object. The acceleration of gravity is 9.8 m/s².

If you divide a force measured in newtons (1 newton = 1 kg*m/s^2) by a speed expressed in meters per second, in what units will the answer be expressed?

Which of the following statements concerning Howard Gardner's multiple intelligences is not correct? A. Gardner is not interested in assessing levels of intelligence. B. Gardner has based his theory on research in various areas of psychology. C.

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

To describe velocity you need to know?

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

Halley's Comet appears around the sun about once every 76 years. It passes through the part of its orbit nearest the sun in just a few months but then moves out to great distances and takes more than half a century for the rest of its orbit.