Is the formation of rust on an iron nail a chemical change or a physical change?

The walls of a room have a total of 60 square meters. how many pints of paint will it take to cover all the walls if a single pint can cover 36 ft squared

We put a force of 50N on an object and the acceleration is 100 m/s². What is the mass of the object?

Using the equation for the distance between fringes, Δy = xλ d, complete the following. (a) Calculate the distance (in cm) between fringes for 694 nm light falling on double slits separated by 0.0850 mm, located 4.00 m from a screen.

If heat is absorbed by water, what phase change occurs. A. gas to solid. B. liquid to gas. C. liquid to solid. D. solid to liquid

The ideal mechanical advantage of a machine is 3.2 and its output distance is 2.5 meters. What is the input distance?

Which of The following are classiFcatons describing how rock and oTher maTerial movedownslope? a. Fall, b. slide, c. slump, d. creep, e. fow

What is the acceleration of a 32-kg object if a 6.75-N force is applied to it? a. 0.21 m/s2 b. 4.74 m/s2 c. 21.09 m/s2 d. 216.00 m/s2

Gravitational force is a (n) ? A) attractive force B) repulsive force C) both an attractive and repulsive force D) neither an attractive or repulsive force

A damped harmonic oscillator loses 6.0% of its mechanical energy per cycle. a. by what percentage does its frequency (equation 14-20) differ from its natural frequency? b.

What element will form an ionic bond with carbon