Sharpening your pencil makes work easier by:

A. decreasing distance and increasing force.

B. increasing distance and decreasing force.

C. increasing distance and increasing force.

The density of an object is defined as its mass divided by its volume. Suppose the mass and volume of a rock are measured to be 8 g and 2.8325 cm^3. What is the correct number of significant figures for the rock's density?

How long can the body maintain an anaerobic burst of energy

A 121 turn 121 turn circular coil of radius 2.85 cm 2.85 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Over an interval of 0.179 s 0.179 as, the magnetic field strength increases from 55.1 mT 55.

In a real machine, the work output is always less than the work input. a. True b. False

A hot air ballon with a mass of 500kg ascends at a constant rate of 1.5 m/s for 20s. how much work is done by the upward force?

What is the frequency of a wave with a velocity of 21.2 m/s and a wavelength of 8.3m?

Positive ions have blank protons than electrons

What is the weight, in n, of an object with a mass of 200 kg at a location where g = 9.6 m/s2. round the final answer to the nearest whole number?

A 1.7 kg book is lying on a 0.77 m - high table. You pick it up and place it on a bookshelf 2.0 m above the floor. how much work does gravity do on the book?

What is the difference between diffusion and osmosis?