An atom that has fewer neutrons than protons and more electrons than protons is a (n)

ion.

The greater the of an object the more force is needed to cause acceleration

A package falls from an airplane in level flight at constant speed. If air resistance can be neglected, how does the motion of the package look to the pilot

A 725.0 o emu egg moving at 8.75 m/s thrown by an obnoxious juvenile is caught by an alert lady. (a) If the time of the interaction is 0.197 sec, what is the average force on the egg? (b) If the maximum force the egg can withstand is 650.0 N.

Why is stepping on a can considered a physical change?

Distinguish between theoretical mechanical advantage. How would these compare if a machine were 100percent efficient?

Birds, squirrels, and chipmunks all living in the same tree, using the same resources, are an example of:

Does air resistence decrease with speed

In one area, the lowest angle of elevation of the sun in winter is 23 ° 18 '. Find the minimum distance, x, that a plant needing full sun can be placed from a fence 4.63 ft high.

A wave has a wavelength of 50 m and a speed of 200 m/s. What is the frequency of this wave in hertz?

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?